The MAX20333/A/B/C/D/E/F/G/H/I/J/K/L/M/N programmable current-limit switches feature internal current limiting to prevent damage to host devices due to faulty load conditions. These current limit switches feature a low 23mΩ (typ) on-resistance and operate from a +3.5V to +22V iinput voltage range (MAX20333/A/B/C/D/E/F/G/H/I/J/K), or +3.3V to +22V input voltage range (MAX20333L/M/N).The MAX20333 family has three working modes: normal mode (NM), high current mode (HCM), and low power mode (LPM). In NM, the device offers a programmable current-limit protection from 0.2A to 4.75A. The current-limit threshold can be programmed by connecting a suitable resistor to the SETI bump. When the current reaches the programmed threshold, the part prevents the current to further increase. The device can react in three different ways while in current limit: autoretry, latchoff, and continuous. The voltage on the SETI bump is proportional to the current flowing out of the OUT bump at any time and can be read by an ADC.In high current mode (HCM), the current-limit threshold is multiplied by two, with an internal upper limit set at 5.5A. The voltage on SETI is proportional to the current flowing into IN, but multiplied by a factor 0.5. In low power mode (LPM), the current consumption of the part is dramatically reduced, and the on-resistance is 420mΩ (typ), while still offering an overcurrent protection. The switch is open when the current flowing through the switch exceeds 0.4A (typ).The devices are available in a 15-bump (2.1mm x 1.52mm) WLP package and operate over the -40°C to +85°C extended temperature range.ApplicationsBattery Disconnect SwitchGeneral Power Supply SwitchUSB Port Protection Switch

The MAX20335 is a battery-charge-management solution ideal for low-power wearable applications. The device includes a linear battery charger with a smart power selector and several power-optimized peripherals. The MAX20335 features two ultra-low quiescent current buck regulators and three ultra-low quiescent current low-dropout (LDO) linear regulators, providing up to five regulated voltages, each with an ultra-low quiescent current, allows designers to minimize power consumption and extend battery life in 24/7 operation devices, such as those in the wearable market.The battery charger features a smart power selector that allows operation on a dead battery when connected to a power source. To avoid overloading a power adapter, the input current to the smart power selector is limited based on an I2C register setting. If the charger power source is unable to supply the entire system load, the smart power control circuit supplements the system load with current from the battery. The charger also supports temperature dependent charge currents.The two synchronous, high-efficiency step-down buck regulators feature a variable frequency mode for increased efficiency during light-load operation. The output voltage of these regulators can be programmed through I2C with the default preconfigured. The buck regulators cansupport dynamic voltage scaling to further improve system power consumption.The three configurable LDOs each have a dedicated input pin. Each LDO regulator output voltage can be programmed through I2C with the default preconfigured. The linear regulators can also be configured to operate as power switches that may be used to disconnect the quiescent load of the system peripherals.The MAX20335 features a programmable power controller that allows the device to be configured for applications that require the device be in a true-off, or always-on, state. The controller also provides a delayed reset signal and voltage sequencing.The MAX20335 is available in a 36-bump, 0.4mm pitch, 2.72mm x 2.47mm wafer-level package (WLP).ApplicationsFitness MonitorsRechargeable IoT devicesWearable Electronics

The MAX20335 is a battery-charge-management solution ideal for low-power wearable applications. The device includes a linear battery charger with a smart power selector and several power-optimized peripherals. The MAX20335 features two ultra-low quiescent current buck regulators and three ultra-low quiescent current low-dropout (LDO) linear regulators, providing up to five regulated voltages, each with an ultra-low quiescent current, allows designers to minimize power consumption and extend battery life in 24/7 operation devices, such as those in the wearable market.The battery charger features a smart power selector that allows operation on a dead battery when connected to a power source. To avoid overloading a power adapter, the input current to the smart power selector is limited based on an I2C register setting. If the charger power source is unable to supply the entire system load, the smart power control circuit supplements the system load with current from the battery. The charger also supports temperature dependent charge currents.The two synchronous, high-efficiency step-down buck regulators feature a variable frequency mode for increased efficiency during light-load operation. The output voltage of these regulators can be programmed through I2C with the default preconfigured. The buck regulators cansupport dynamic voltage scaling to further improve system power consumption.The three configurable LDOs each have a dedicated input pin. Each LDO regulator output voltage can be programmed through I2C with the default preconfigured. The linear regulators can also be configured to operate as power switches that may be used to disconnect the quiescent load of the system peripherals.The MAX20335 features a programmable power controller that allows the device to be configured for applications that require the device be in a true-off, or always-on, state. The controller also provides a delayed reset signal and voltage sequencing.The MAX20335 is available in a 36-bump, 0.4mm pitch, 2.72mm x 2.47mm wafer-level package (WLP).ApplicationsFitness MonitorsRechargeable IoT devicesWearable Electronics

The MAX20336/MAX20337 ultra-small, low-on-resistance (RON)double-pole/single throw (DPST) analog switches featureBeyond-the-Rails™ capability that allows signals from-5.5V to +5.5V to pass without distortion, even whenthe power supply is below the signal range. The low onresistance(0.19Ω) also makes the devices ideal for lowdistortionswitching applications, such as audio or video.The MAX20336/MAX20337 are fully specified to operate from a single+1.6V to +5.5V power supply. Because of the low supplycurrent requirement, VCCEN can be provided by aGPIO. When power is not applied, the switches go to ahigh-impedance mode and all analog signal ports canwithstand signals from -5.5V to +5.5V.The MAX20336/MAX20337 are available in a 1.308mm x 0.828mm,0.4mm pitch, 6-bump wafer-level package (WLP) and 1.25mm x 1.75mm 6-pin FC2QFN package, andoperate over the -40°C to +85°C extended temperature range.ApplicationsCell phonePortable Audio/Video EquipmentPortable Navigation DevicesTablet

The MAX20336/MAX20337 ultra-small, low-on-resistance (RON)double-pole/single throw (DPST) analog switches featureBeyond-the-Rails™ capability that allows signals from-5.5V to +5.5V to pass without distortion, even whenthe power supply is below the signal range. The low onresistance(0.19Ω) also makes the devices ideal for lowdistortionswitching applications, such as audio or video.The MAX20336/MAX20337 are fully specified to operate from a single+1.6V to +5.5V power supply. Because of the low supplycurrent requirement, VCCEN can be provided by aGPIO. When power is not applied, the switches go to ahigh-impedance mode and all analog signal ports canwithstand signals from -5.5V to +5.5V.The MAX20336/MAX20337 are available in a 1.308mm x 0.828mm,0.4mm pitch, 6-bump wafer-level package (WLP) and 1.25mm x 1.75mm 6-pin FC2QFN package, andoperate over the -40°C to +85°C extended temperature range.ApplicationsCell phonePortable Audio/Video EquipmentPortable Navigation DevicesTablet

The MAX20336/MAX20337 ultra-small, low-on-resistance (RON)double-pole/single throw (DPST) analog switches featureBeyond-the-Rails™ capability that allows signals from-5.5V to +5.5V to pass without distortion, even whenthe power supply is below the signal range. The low onresistance(0.19Ω) also makes the devices ideal for lowdistortionswitching applications, such as audio or video.The MAX20336/MAX20337 are fully specified to operate from a single+1.6V to +5.5V power supply. Because of the low supplycurrent requirement, VCCEN can be provided by aGPIO. When power is not applied, the switches go to ahigh-impedance mode and all analog signal ports canwithstand signals from -5.5V to +5.5V.The MAX20336/MAX20337 are available in a 1.308mm x 0.828mm,0.4mm pitch, 6-bump wafer-level package (WLP) and 1.25mm x 1.75mm 6-pin FC2QFN package, andoperate over the -40°C to +85°C extended temperature range.ApplicationsCell phonePortable Audio/Video EquipmentPortable Navigation DevicesTablet

The MAX20343/MAX20344 is an ultra-low quiescent current, noninverting buck-boost converter with 1A current capability at 3.5V intended for applications that require long run times while also demanding bursts of high current. The device employs a unique control algorithm which seamlessly transitions between buck, buck-boost, and boost modes, minimizing discontinuities and subharmonics in the output voltage ripple. The low 1.9V input voltage for startup allows users to power the device from a variety of sources, and the near-zero minimum operating voltage gives the user the ability to extract as much as possible from their energy source. The MAX20343/MAX20344 has also been designed to keep inductance and output capacitance requirements as low as possible for space-constrained applications.The MAX20343/MAX20344 is ideal for power in optical sensor applications as well as for powering radios in low power, wide area network (LPWAN) applications since in both cases noise must be minimal and efficiency must be high. For instance, the small light-load output voltage ripple allows a photoplethysmography (PPG) system to operate at low LED currents without interference. Additionally, seamless transitions between operating modes enables the use of dynamic voltage scaling (DVS) to minimize headroom on the LED and to save power in such systems. In applications where a low-power-density battery must be buffered by a super-capacitor to provide large LPWAN type bursts of current, the ultra-low operating voltage of the MAX20343/MAX20344 allows the user to extract as much energy as possible from the super capacitor. The low output inductance/capacitance requirement allows a small total solution size. For example in PPG systems, this provides the flexibility to place the MAX20343/MAX20344 on a remote optical module if overcrowding on the main PCB is an issue.The MAX20343/MAX20344 is available with a highly configurable I2C serial interface or as a single-pin-enabled fixed-programming version. See Table 3 for specific device settings. MAX20343 operates over the -40°C to +85°C temperature range, is available in a 16-bump, 1.77mm x 2.01mm, 0.4mm pitch WLP package and a 12-pin, 2.50mm x 2.50mm, 0.5mm pitch FC2QFN package. MAX20344 operates over the -40°C to +125°C temperature range, and is available in a 12-pin, 2.50mm x 2.50mm, 0.5mm pitch FC2QFN package.ApplicationsBiometric Optical Sensing Including PPGIndustrial SensorsIoTLPWAN (LTE/NB-IoT, LTE/Cat-M1)

The MAX20343/MAX20344 is an ultra-low quiescent current, noninverting buck-boost converter with 1A current capability at 3.5V intended for applications that require long run times while also demanding bursts of high current. The device employs a unique control algorithm which seamlessly transitions between buck, buck-boost, and boost modes, minimizing discontinuities and subharmonics in the output voltage ripple. The low 1.9V input voltage for startup allows users to power the device from a variety of sources, and the near-zero minimum operating voltage gives the user the ability to extract as much as possible from their energy source. The MAX20343/MAX20344 has also been designed to keep inductance and output capacitance requirements as low as possible for space-constrained applications.The MAX20343/MAX20344 is ideal for power in optical sensor applications as well as for powering radios in low power, wide area network (LPWAN) applications since in both cases noise must be minimal and efficiency must be high. For instance, the small light-load output voltage ripple allows a photoplethysmography (PPG) system to operate at low LED currents without interference. Additionally, seamless transitions between operating modes enables the use of dynamic voltage scaling (DVS) to minimize headroom on the LED and to save power in such systems. In applications where a low-power-density battery must be buffered by a super-capacitor to provide large LPWAN type bursts of current, the ultra-low operating voltage of the MAX20343/MAX20344 allows the user to extract as much energy as possible from the super capacitor. The low output inductance/capacitance requirement allows a small total solution size. For example in PPG systems, this provides the flexibility to place the MAX20343/MAX20344 on a remote optical module if overcrowding on the main PCB is an issue.The MAX20343/MAX20344 is available with a highly configurable I2C serial interface or as a single-pin-enabled fixed-programming version. See Table 3 for specific device settings. MAX20343 operates over the -40°C to +85°C temperature range, is available in a 16-bump, 1.77mm x 2.01mm, 0.4mm pitch WLP package and a 12-pin, 2.50mm x 2.50mm, 0.5mm pitch FC2QFN package. MAX20344 operates over the -40°C to +125°C temperature range, and is available in a 12-pin, 2.50mm x 2.50mm, 0.5mm pitch FC2QFN package.ApplicationsBiometric Optical Sensing Including PPGIndustrial SensorsIoTLPWAN (LTE/NB-IoT, LTE/Cat-M1)

The MAX20343/MAX20344 is an ultra-low quiescent current, noninverting buck-boost converter with 1A current capability at 3.5V intended for applications that require long run times while also demanding bursts of high current. The device employs a unique control algorithm which seamlessly transitions between buck, buck-boost, and boost modes, minimizing discontinuities and subharmonics in the output voltage ripple. The low 1.9V input voltage for startup allows users to power the device from a variety of sources, and the near-zero minimum operating voltage gives the user the ability to extract as much as possible from their energy source. The MAX20343/MAX20344 has also been designed to keep inductance and output capacitance requirements as low as possible for space-constrained applications.The MAX20343/MAX20344 is ideal for power in optical sensor applications as well as for powering radios in low power, wide area network (LPWAN) applications since in both cases noise must be minimal and efficiency must be high. For instance, the small light-load output voltage ripple allows a photoplethysmography (PPG) system to operate at low LED currents without interference. Additionally, seamless transitions between operating modes enables the use of dynamic voltage scaling (DVS) to minimize headroom on the LED and to save power in such systems. In applications where a low-power-density battery must be buffered by a super-capacitor to provide large LPWAN type bursts of current, the ultra-low operating voltage of the MAX20343/MAX20344 allows the user to extract as much energy as possible from the super capacitor. The low output inductance/capacitance requirement allows a small total solution size. For example in PPG systems, this provides the flexibility to place the MAX20343/MAX20344 on a remote optical module if overcrowding on the main PCB is an issue.The MAX20343/MAX20344 is available with a highly configurable I2C serial interface or as a single-pin-enabled fixed-programming version. See Table 3 for specific device settings. MAX20343 operates over the -40°C to +85°C temperature range, is available in a 16-bump, 1.77mm x 2.01mm, 0.4mm pitch WLP package and a 12-pin, 2.50mm x 2.50mm, 0.5mm pitch FC2QFN package. MAX20344 operates over the -40°C to +125°C temperature range, and is available in a 12-pin, 2.50mm x 2.50mm, 0.5mm pitch FC2QFN package.ApplicationsBiometric Optical Sensing Including PPGIndustrial SensorsIoTLPWAN (LTE/NB-IoT, LTE/Cat-M1)

The MAX20343/MAX20344 is an ultra-low quiescent current, noninverting buck-boost converter with 1A current capability at 3.5V intended for applications that require long run times while also demanding bursts of high current. The device employs a unique control algorithm which seamlessly transitions between buck, buck-boost, and boost modes, minimizing discontinuities and subharmonics in the output voltage ripple. The low 1.9V input voltage for startup allows users to power the device from a variety of sources, and the near-zero minimum operating voltage gives the user the ability to extract as much as possible from their energy source. The MAX20343/MAX20344 has also been designed to keep inductance and output capacitance requirements as low as possible for space-constrained applications.The MAX20343/MAX20344 is ideal for power in optical sensor applications as well as for powering radios in low power, wide area network (LPWAN) applications since in both cases noise must be minimal and efficiency must be high. For instance, the small light-load output voltage ripple allows a photoplethysmography (PPG) system to operate at low LED currents without interference. Additionally, seamless transitions between operating modes enables the use of dynamic voltage scaling (DVS) to minimize headroom on the LED and to save power in such systems. In applications where a low-power-density battery must be buffered by a super-capacitor to provide large LPWAN type bursts of current, the ultra-low operating voltage of the MAX20343/MAX20344 allows the user to extract as much energy as possible from the super capacitor. The low output inductance/capacitance requirement allows a small total solution size. For example in PPG systems, this provides the flexibility to place the MAX20343/MAX20344 on a remote optical module if overcrowding on the main PCB is an issue.The MAX20343/MAX20344 is available with a highly configurable I2C serial interface or as a single-pin-enabled fixed-programming version. See Table 3 for specific device settings. MAX20343 operates over the -40°C to +85°C temperature range, is available in a 16-bump, 1.77mm x 2.01mm, 0.4mm pitch WLP package and a 12-pin, 2.50mm x 2.50mm, 0.5mm pitch FC2QFN package. MAX20344 operates over the -40°C to +125°C temperature range, and is available in a 12-pin, 2.50mm x 2.50mm, 0.5mm pitch FC2QFN package.ApplicationsBiometric Optical Sensing Including PPGIndustrial SensorsIoTLPWAN (LTE/NB-IoT, LTE/Cat-M1)

The MAX20345 is a power management solution featuring ultra-low IQ voltage regulators, ideal for low-power wearable applications. The device includes a linear battery charger with a smart power selector and several power-optimized peripherals. The device features three buck regulators, three low-dropout (LDO) linear regulators, and a Buck-Boost regulator, providing up to seven regulated voltages, each with an ultra-low quiescent current. Two load switches allow disconnecting system peripherals to minimize the total quiescent load of the system. MAX20345 allows system designers to minimize power consumption and extend battery life in 24/7 operation devices, such as those in the wearable market.The three synchronous, high-efficiency buck regulators use a pulse frequency modulated (PFM) control scheme for increased efficiency during light-load operation. The output voltage of these regulators can be programmed through I2C down to voltages as low as 0.7V. Additionally, the buck regulators support dynamic voltage scaling (DVS) allowing the system designer to further improve system power consumption when using devices that can take advantage of DVS.Each of the three LDO regulators output voltage can be programmed through I2C. For additional flexibility, each LDO can be configured as a load switch that can be used to disconnect the quiescent load of the system peripherals.The integrated Buck-Boost converter provides a convenient way to power system peripherals that require voltages higher and/or lower than the battery voltage, and is optimized for optical sensing systems such as optical heart rate (OHR)/PPG and SpO2 measurements. The output noise of the Buck-Boost is minimized to provide the least impact possible on sensitive measurements in such systems. The addition of DVS offers further power savings during favorable measurement conditions.The MAX20345 also features a programmable power controller that allows the device to be configured for applications that require the device be in a true-off, or always-on, state. The controller provides a delayed reset signal and voltage sequencing. The MAX20345 is available in a 56-bump, 0.4mm pitch, 3.37mm x 3.05mm wafer-level package (WLP). Design Solution: REALLY Smart Wearables Customize Their Power Supply › Design Solution: Choose the Proper PMIC to Boost Your Optical Sensor SNR ›ApplicationsIoTWearable Devices

The MAX20345 is a power management solution featuring ultra-low IQ voltage regulators, ideal for low-power wearable applications. The device includes a linear battery charger with a smart power selector and several power-optimized peripherals. The device features three buck regulators, three low-dropout (LDO) linear regulators, and a Buck-Boost regulator, providing up to seven regulated voltages, each with an ultra-low quiescent current. Two load switches allow disconnecting system peripherals to minimize the total quiescent load of the system. MAX20345 allows system designers to minimize power consumption and extend battery life in 24/7 operation devices, such as those in the wearable market.The three synchronous, high-efficiency buck regulators use a pulse frequency modulated (PFM) control scheme for increased efficiency during light-load operation. The output voltage of these regulators can be programmed through I2C down to voltages as low as 0.7V. Additionally, the buck regulators support dynamic voltage scaling (DVS) allowing the system designer to further improve system power consumption when using devices that can take advantage of DVS.Each of the three LDO regulators output voltage can be programmed through I2C. For additional flexibility, each LDO can be configured as a load switch that can be used to disconnect the quiescent load of the system peripherals.The integrated Buck-Boost converter provides a convenient way to power system peripherals that require voltages higher and/or lower than the battery voltage, and is optimized for optical sensing systems such as optical heart rate (OHR)/PPG and SpO2 measurements. The output noise of the Buck-Boost is minimized to provide the least impact possible on sensitive measurements in such systems. The addition of DVS offers further power savings during favorable measurement conditions.The MAX20345 also features a programmable power controller that allows the device to be configured for applications that require the device be in a true-off, or always-on, state. The controller provides a delayed reset signal and voltage sequencing. The MAX20345 is available in a 56-bump, 0.4mm pitch, 3.37mm x 3.05mm wafer-level package (WLP). Design Solution: REALLY Smart Wearables Customize Their Power Supply › Design Solution: Choose the Proper PMIC to Boost Your Optical Sensor SNR ›ApplicationsIoTWearable Devices

The MAX20353 is a highly integrated and programmablepower management solution designed for ultra-low-powerwearable applications. It is optimized for size and efficiencyto enhance the value of the end product by extending batterylife and shrinking the overall solution size. A flexible setof power-optimized voltage regulators, including multiplebucks, boost, buck-boost, and linear regulators, providesa high level of integration and the ability to create a fullyoptimized power architecture. The quiescent current ofeach regulator is specifically suited for 1µA (typ) to extendbattery life in always-on applications.The MAX20353 includes a complete battery managementsolution with battery seal, charger, power path, and fuelgauge. Both thermal management and input protectionare built into the charger.The device also includes a factory programmable buttoncontroller with multiple inputs that are customizable to fitspecific product UX requirements.Three integrated LED current sinks are included for indicatoror backlighting functions, and an ERM/LRA driver withautomatic resonance tracking is capable of providingsophisticated haptic feedback to the user.The device is configurable through an I2C interface thatallows for programming various functions and readingdevice status, including the ability to read temperatureand supply voltages with the integrated ADC.This device is available in a 56-bump, 0.5mm pitch3.71mm x 4.21mm, wafer-level package (WLP) andoperates over the -40°C to +85°C extended temperaturerange.ApplicationsWearable DevicesIoT

The MAX20355 is a Power Line Communication (PLC) master with ModelGaugeTM m5 EZ fuel gauge and buckboost converter. The MAX20355 and MAX20357 provide a complete system solution for charging and data transfer between a charging case and a battery-powered device over a single contact.The PLC interface is capable of 100kpbs throughput while simultaneously providing 400mA of total charging/system current. A 4Mbaud half-duplex dataonly UART mode provides an easy and fast method forfirmware updates, debugging interface, and factory modes.MAX20355 utilizes a 3.3W buck-boost converter with dynamic voltage scaling (DVS) to automatically manage the charging voltage based on the slave device MAX20357 control signal.Additional features include comprehensive slave device insertion and removal notifications, moisture detection, overcurrent protection, and 8kV contact rated ESD protection on the PLC outputs.APPLICATIONS TWS Headphones Augmented Reality Glasses Wearable Devices

The MAX20357 is a Power Line Communication (PLC) slave with ModelGauge m5 EZ fuel gauge and charger. The MAX20357 and MAX20355 provide a complete system solution for charging and data transfer between a charging case and battery powered device over a single contact.The PLC interface is capable of 100kpbs throughput while simultaneously providing 200mA of charging/system current per channel. A 4Mbaud halfduplex data only UART mode provides an easy and fastmethod for firmware updates, debugging interface, and factory modes.The charger on slave device MAX20357 controls the output of the 3.3W buck-boost converter in the MAX20355 with dynamic voltage scaling (DVS).The MAX20357 integrates an ultra-low power fuelgauge which implements the Maxim ModelGauge™ m5 algorithm. The IC monitors a single-cell battery pack and supports internal current sensing.Additional features include comprehensive master device insertion and removal notifications, moisture detection, overcurrent protection, and 8kV contact rated ESD protection on the PLC output.APPLICATIONS True Wireless Stereo Headphones Augmented Reality Glasses Wearable Devices

The MAX20360 is a highly integrated and programmablepower management solution designed for ultra-low-powerwearable applications. It is optimized for size and efficiencyto enhance the value of the end product by extendingbattery life and shrinking the overall solution size. A flexibleset of power-optimized voltage regulators, includingmultiple buck, boost and buck-boost converters, and linearregulators, provides a high level of integration and theability to create a fully optimized power architecture. Thequiescent current of each regulator is ultra-low targeted atextending battery life in always-on applications.The MAX20360 includes a complete battery managementsolution with battery seal, charger, power path, and fuelgauge. Both thermal management and input protectionare built into the charger. The device also includes a factoryprogrammable button controller with multiple inputs thatare customizable to fit specific product UX requirements.Three integrated LED current sinks are included for indicatoror backlighting functions, and an ERM/LRA driver withautomatic resonance tracking is capable of providing sophisticatedhaptic feedback to the user. A low noise, 1.5Wbuck-boost converter provides a clean way to power LEDscommonly used in optical heart-rate systems. The deviceis configurable through an I2C interface that allows for programmingvarious functions and reading the device status,including the ability to read temperature and supply voltageswith the integrated ADC. This device is available ina 72-bump, 0.5mm pitch, 4.88mm x 4.19mm, wafer-levelpackage (WLP) and operates over the -40°C to +85°C extendedtemperature range.ApplicationsWearable DevicesIoT

The MAX20360 is a highly integrated and programmablepower management solution designed for ultra-low-powerwearable applications. It is optimized for size and efficiencyto enhance the value of the end product by extendingbattery life and shrinking the overall solution size. A flexibleset of power-optimized voltage regulators, includingmultiple buck, boost and buck-boost converters, and linearregulators, provides a high level of integration and theability to create a fully optimized power architecture. Thequiescent current of each regulator is ultra-low targeted atextending battery life in always-on applications.The MAX20360 includes a complete battery managementsolution with battery seal, charger, power path, and fuelgauge. Both thermal management and input protectionare built into the charger. The device also includes a factoryprogrammable button controller with multiple inputs thatare customizable to fit specific product UX requirements.Three integrated LED current sinks are included for indicatoror backlighting functions, and an ERM/LRA driver withautomatic resonance tracking is capable of providing sophisticatedhaptic feedback to the user. A low noise, 1.5Wbuck-boost converter provides a clean way to power LEDscommonly used in optical heart-rate systems. The deviceis configurable through an I2C interface that allows for programmingvarious functions and reading the device status,including the ability to read temperature and supply voltageswith the integrated ADC. This device is available ina 72-bump, 0.5mm pitch, 4.88mm x 4.19mm, wafer-levelpackage (WLP) and operates over the -40°C to +85°C extendedtemperature range.ApplicationsWearable DevicesIoT

The MAX20402/MAX20403 IC are tiny synchronous buck converters with integrated high-side and low-side switches. The MAX20402/MAX20403 deliver up to 2.5A/3.5Aover a wide 3V to 36V input voltage range. Voltage quality can be monitored by observing the PGOOD signal. These ICs can operate in dropout by running at 99% duty cycle,making them ideal for automotive and industrial applications. The MAX20402/MAX20403 offer externally programmable or internally fixed output voltages of 5V and 3.3V. Fixed internal frequency options of 3MHz/2.1MHz/400kHz areavailable, which allow for small external components and reduced output ripple, and also guarantee no AM interference.When SYNC is low, the MAX20402/MAX20403 automatically enter skip mode at light loads with an ultra-low quiescent current of 10μA at no load. A pin-selectable forced-PWM mode is also available, which helps improve EMI performance. The devices have a spread-spectrum frequency modulation option designed to minimize EMI-radiated emissions due to the modulation frequency. The MAX20402/MAX20403 are available in a small, 3mm x 3mm FC2QFN package and use very few external components.APPLICATIONS Automotive Applications ADAS Systems Radar Modules Infotainment Industrial Applications High-Voltage DC-DC Converters

The MAX20402/MAX20403 IC are tiny synchronous buck converters with integrated high-side and low-side switches. The MAX20402/MAX20403 deliver up to 2.5A/3.5Aover a wide 3V to 36V input voltage range. Voltage quality can be monitored by observing the PGOOD signal. These ICs can operate in dropout by running at 99% duty cycle,making them ideal for automotive and industrial applications. The MAX20402/MAX20403 offer externally programmable or internally fixed output voltages of 5V and 3.3V. Fixed internal frequency options of 3MHz/2.1MHz/400kHz areavailable, which allow for small external components and reduced output ripple, and also guarantee no AM interference.When SYNC is low, the MAX20402/MAX20403 automatically enter skip mode at light loads with an ultra-low quiescent current of 10μA at no load. A pin-selectable forced-PWM mode is also available, which helps improve EMI performance. The devices have a spread-spectrum frequency modulation option designed to minimize EMI-radiated emissions due to the modulation frequency. The MAX20402/MAX20403 are available in a small, 3mm x 3mm FC2QFN package and use very few external components.APPLICATIONS Automotive Applications ADAS Systems Radar Modules Infotainment Industrial Applications High-Voltage DC-DC Converters

The MAX20402/MAX20403 IC are tiny synchronous buck converters with integrated high-side and low-side switches. The MAX20402/MAX20403 deliver up to 2.5A/3.5Aover a wide 3V to 36V input voltage range. Voltage quality can be monitored by observing the PGOOD signal. These ICs can operate in dropout by running at 99% duty cycle,making them ideal for automotive and industrial applications. The MAX20402/MAX20403 offer externally programmable or internally fixed output voltages of 5V and 3.3V. Fixed internal frequency options of 3MHz/2.1MHz/400kHz areavailable, which allow for small external components and reduced output ripple, and also guarantee no AM interference.When SYNC is low, the MAX20402/MAX20403 automatically enter skip mode at light loads with an ultra-low quiescent current of 10μA at no load. A pin-selectable forced-PWM mode is also available, which helps improve EMI performance. The devices have a spread-spectrum frequency modulation option designed to minimize EMI-radiated emissions due to the modulation frequency. The MAX20402/MAX20403 are available in a small, 3mm x 3mm FC2QFN package and use very few external components.APPLICATIONS Automotive Applications ADAS Systems Radar Modules Infotainment Industrial Applications High-Voltage DC-DC Converters