The MAX20735 is a fully integrated, highly efficientswitching regulator for applications operating from 4.5V to16V and requiring up to 40A maximum load. This single-chipregulator provides extremely compact, high-efficiencypower-delivery solutions with high-precision outputvoltages and excellent transient response for networking,datacom, and telecom equipment.The IC offers a broad range of programmable featuresthrough capacitors and resistors connected to dedicatedprogramming pins. Using this feature, the operation canbe optimized for a specific application, reducing thecomponent count- and/or setting-appropriate trade-offsbetween the regulator's performance and system cost.Ease of programming enables using the same design formultiple applications.The MAX20735 includes protection capabilities. Positiveand negative cycle-by-cycle overcurrent protection andovertemperature protection ensure a rugged design. Inputundervoltage lockout shuts down the device to preventoperation when the input voltage is out of specification. Astatus pin provides an output signal to show that the outputvoltage is within range and the system is regulating.ApplicationsCommunications EquipmentI/OMemory VDDQNetworking EquipmentPoint-of-Load Voltage RegulatorsServers and Storage EquipmentμP Chipsets

The MAX20743 is a fully integrated, highly efficient switching regulator with PMBus™ for applications operating from 4.5V to 16V and requiring up to 35A maximum load. This single-chip regulator provides extremely compact, high-efficiency power delivery solutions with high-precision output voltages and excellent transient response for networking, datacom and telecom equipment.The IC offers a broad range of programmable features through either the PMBus or through a capacitor and resistor connected to a dedicated programming pin. Using this feature, the operation can be optimized for a specific application, reducing the component count and/or setting appropriate trade-offs between the regulator’s performance and system cost. Ease of programming enables using the same design for multiple applications.The IC includes protection and telemetry features. Positive and negative cycle-by-cycle overcurrent protection and overtemperature protection ensure a rugged design. Input undervoltage lockout shuts down the device to prevent operation when the input voltage is out of specification. A status pin provides an output signal to show that the output voltage is within range and the system is regulating.ApplicationsCommunicationsNetworkingServers and Storage equipments

The MAX20745 is a fully integrated, highly efficientswitching regulator for applications operating from 4.5V to16V and requiring up to 25A maximum load. This singlechipregulator provides extremely compact, high-efficiencypower-delivery solutions with high-precision outputvoltages and excellent transient response for networking,datacom, and telecom equipment.The IC offers a broad range of programmable featuresthrough capacitors and resistors connected to dedicatedprogramming pins. Using this feature, the operation canbe optimized for a specific application, reducing thecomponent count- and/or setting-appropriate trade-offsbetween the regulator's performance and system cost.Ease of programming enables using the same design formultiple applications.The MAX20745 includes protection capabilities. Positiveand negative cycle-by-cycle overcurrent protection andovertemperature protection ensure a rugged design. Inputundervoltage lockout shuts down the device to preventoperation when the input voltage is out of specification. Astatus pin provides an output signal to show that the outputvoltage is within range and the system is regulating.ApplicationsCommunications EquipmentI/OMemory VDDQNetworking EquipmentPoint-of-Load Voltage RegulatorsServers and Storage EquipmentμP Chipsets

The MAX2153 is a combined ultra-low-power, 3D, low-frequency startup receiver and 3D LF transponder. The startup receiver continuously monitors the LF input pins for a preconfigured wake-up and synchronization pattern while in its ultra-low-power operating mode. Upon receiving the wake-up pattern additional internal and external circuits can be activated. Additional payload data can also be received and stored in on-chip data buffers.The transponder can be supplied from the received field and provides an additional wake-up and receiving path. The transponder also provides a transmit function that actively stimulates the external resonant antenna.For improved performance, 22kHz bi-phase shift keying is used for both the startup receiver and the transponder. Data rates are programmable from 5.46kbps to 1.37kbps.For configuration and control purposes, the MAX2153 includes an 8051 type CPU and 2KB RAM. The configuration and firmware are stored in an on-chip 64kB FLASH memory. The CPU and associated functions are run at configurable clock rates of up to 16MHz.The MAX2153 supports configurable GPIO with the ability to drive LED. The GPIO can also be used for wake-up functionality.ApplicationsCar Access SystemsEmergency Keys without BatteryKeyfobs with RKE/KGO Functionality

The MAX2248 single-supply, low-voltage power amplifier (PA) IC is designed specifically for applications in the 1880MHz to 1930MHz frequency band. The PA provides a +20dBm (100mW) output power in the highest power mode.The PA includes a digital power control circuit to greatly simplify control of the output power. Four digitally controlled output power levels are provided: from +4dBm to +20dBm. A digital input controls the active or shutdown operating modes of the PA. In the shutdown mode, the current reduces to 0.5µA.The MAX2248 integrates the RF input and inter-stage matching to simplify application of the IC. Temperature and supply-independent biasing are also included to provide stable performance under all operating conditions.The IC operates from a +2.7V to +5V single-supply voltage. No negative bias voltage is required. Current consumption is a modest 105mA at the highest power level.This part is packaged in a 3mm x 3mm, 16-pin TQFN.Applications1.9GHz DECT (Cordless Phones and Wireless Headsets)

The MAX22500E/MAX22501E half-duplex ESD-protected RS-485/RS-422 transceivers are optimized for high-speed (up to 100Mbps) communication over long cables.These transceivers feature integrated hot-swap protection and a fail-safe receiver, ensuring a logic-high on the receiver output when input signals are shorted or open for longer than 10µs (typ).The MAX22500E features integrated preemphasis circuitry that extends the distance and increases the data rate of reliable communication by reducing inter-symbol interference(ISI) caused by long cables. The MAX22500E features a flexible logic interface down to 1.6V.The MAX22501E operates without preemphasis and is powered from a 3V to 5.5V supply.The MAX22500E is available in a 10-pin TDFN-EP package. The MAX22501E is available in a 8-pin TDFN-EP package and an 8-pin µMAX package. Both transceiversoperate over the -40°C to +125°C ambient temperature range.Also see the MAX22502E Full-Duplex RS-485/RS-422 Transceiver › Design Solution: RS-485: Overcome the Speed vs. Distance Challenge ›ApplicationsBackplane BussesEncoder InterfacesField Bus NetworksIndustrial Control SystemsMotion Control

The MAX20075/MAX20076/MAX25276 are small, synchronous buck converters with integrated high-side and low-side switches. The MAX20076/MAX25276 are designed to deliver up to 1.2A and the MAX20075 up to 0.6A, with 3.5V to 36V input voltages. The devices provide an accurate output voltage of ±2% within the normal operation input range of 6V to 18V. With 20ns minimum on-time capability, the converter is capable of large input-to-output conversion ratios. Voltage quality can be monitored by observing the PGOOD signal. The devices can operate in dropout by running at 99% duty cycle, making them ideal for automotive and industrial applications. The devices offer two fixed output voltages of 5V and 3.3V. In addition, the devices can be configured for 1V to 10V output voltages using an external resistor-divider. Frequency is internally fixed at 2.1MHz, which allows for small external components and reduced output ripple, and guarantees no AM interference. The devices offer pin-enabled spread-spectrum-frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.The MAX20075/MAX20076 /MAX25276 are available in small (3mm × 3mm) 12-pin TDFN and side-wettable TDFN packages with an exposed pad, and use very few external components. APPLICATIONS Automotive High-Voltage DC-DC Converters Industrial

The MAX20075/MAX20076/MAX25276 are small, synchronous buck converters with integrated high-side and low-side switches. The MAX20076/MAX25276 are designed to deliver up to 1.2A and the MAX20075 up to 0.6A, with 3.5V to 36V input voltages. The devices provide an accurate output voltage of ±2% within the normal operation input range of 6V to 18V. With 20ns minimum on-time capability, the converter is capable of large input-to-output conversion ratios. Voltage quality can be monitored by observing the PGOOD signal. The devices can operate in dropout by running at 99% duty cycle, making them ideal for automotive and industrial applications. The devices offer two fixed output voltages of 5V and 3.3V. In addition, the devices can be configured for 1V to 10V output voltages using an external resistor-divider. Frequency is internally fixed at 2.1MHz, which allows for small external components and reduced output ripple, and guarantees no AM interference. The devices offer pin-enabled spread-spectrum-frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.The MAX20075/MAX20076 /MAX25276 are available in small (3mm × 3mm) 12-pin TDFN and side-wettable TDFN packages with an exposed pad, and use very few external components. APPLICATIONS Automotive High-Voltage DC-DC Converters Industrial

The MAX2678 GPS/GNSS front-end amplifier IC is designed for automotive and marine GPS/GNSS satellite navigation antenna modules, or for any application that needs to compensate for cable losses from the antenna to receiver. Two unconditionally stable low-noise amplifier stages provide the high gain and integrated I/O matching to minimize the need for external matching components and eliminate the need for additional gain stages. The IC features the option to place a bandpass ceramic or surface acoustic wave (SAW) filter between the two amplifier stages for improved immunity to out-of-band interferers. Additionally, a 3.4dB-gain step is provided to compensate for cable loss variation between different applications. The device is designed to operate across all GNSS frequency standards with a 35dB typical cascaded gain and a 25mA supply current. The two LNA stages allow the use of a wide range of GNSS filter types for maximum flexibility in system design. The final RF output pin, which drives the cable to the GNSS receiver, is also the power-supply connection that accepts a DC supply in the 3.0V to 5.25V range. Alternatively, the DC supply can be applied to pin 4. This GPS/GNSS front-end amplifier is available in a lead-free, 10-pin TDFN surface-mount package (3mm × 3mm). Electrical performance is guaranteed over the extended -40°C to +105°C temperature range.ApplicationsActive AntennasIntegrated Automotive and Marine GPS Receivers

The MAX2678 GPS/GNSS front-end amplifier IC is designed for automotive and marine GPS/GNSS satellite navigation antenna modules, or for any application that needs to compensate for cable losses from the antenna to receiver. Two unconditionally stable low-noise amplifier stages provide the high gain and integrated I/O matching to minimize the need for external matching components and eliminate the need for additional gain stages. The IC features the option to place a bandpass ceramic or surface acoustic wave (SAW) filter between the two amplifier stages for improved immunity to out-of-band interferers. Additionally, a 3.4dB-gain step is provided to compensate for cable loss variation between different applications. The device is designed to operate across all GNSS frequency standards with a 35dB typical cascaded gain and a 25mA supply current. The two LNA stages allow the use of a wide range of GNSS filter types for maximum flexibility in system design. The final RF output pin, which drives the cable to the GNSS receiver, is also the power-supply connection that accepts a DC supply in the 3.0V to 5.25V range. Alternatively, the DC supply can be applied to pin 4. This GPS/GNSS front-end amplifier is available in a lead-free, 10-pin TDFN surface-mount package (3mm × 3mm). Electrical performance is guaranteed over the extended -40°C to +105°C temperature range.ApplicationsActive AntennasIntegrated Automotive and Marine GPS Receivers

The MAX2679 and MAX2679B low-noise amplifiers (LNA) are designed for GPS L1, Galileo, and GLONASS applications. The devices achieve high gain and low noise figure while maximizing the input-referred 1dB compression point and the 3rd-order intercept point. The MAX2679 achieves excellent performance while consuming only 1mA supply current and providing 0.95dB noise figure. The MAX2679B achieves excellent performance while consuming only 650µA and providing 1.03dB noise figure.The MAX2679/MAX2679B operates from a +1.08V to +1.98V single supply. The devices are available in a very small, lead-free, RoHS-compliant, 0.83mm x 0.83mm wafer-level package (WLP).Design Solution: Empower Wearable Electronics by Turning Down the Current ›ApplicationsCellular Phones with GPSDigital CamerasGPS Front End ModulesNotebook PCs/Ultra-Mobile PCsRecreational NavigationTelematics (Asset Tracking and Management)WatchesWearables

The MAX30003 is a complete, biopotential, analog front-end solution for wearable applications. It offers high performance for clinical and fitness applications, with ultra-low power for long battery life. The MAX30003 is a single biopotential channel providing ECG waveforms and heart rate detection.The biopotential channel has ESD protection, EMI filtering, internal lead biasing, DC leads-off detection, ultra-low power leads-on detection during standby mode, and extensive calibration voltages for built-in self-test. Soft power-up sequencing ensures no large transients are injected into the electrodes. The biopotential channel also has high input impedance, low noise, high CMRR, programmable gain, various low-pass and high-pass filter options, and a high-resolution analog-to-digital converter. The biopotential channel is DC coupled, can handle large electrode voltage offsets, and has a fast recovery mode to quickly recover from overdrive conditions, such as defibrillation and electrosurgery.The MAX30003 is available in a 28-pin TQFN and 30-bump wafer-level package (WLP), operating over the 0°C to +70°C commercial temperature range.Design Solution: A Customizable ECG Monitor You Can Call Your Own › Introducing the MAX-ECG-MONITOR Wearable ECG and Heart MonitorApplicationsBio Authentication and ECG-On-Demand ApplicationsChest Band Heart Rate Monitors for Fitness ApplicationsSingle Lead Event Monitors for Arrhythmia DetectionSingle Lead Wireless Patches for At-Home/In-Hospital Monitoring

The MAX30003 is a complete, biopotential, analog front-end solution for wearable applications. It offers high performance for clinical and fitness applications, with ultra-low power for long battery life. The MAX30003 is a single biopotential channel providing ECG waveforms and heart rate detection.The biopotential channel has ESD protection, EMI filtering, internal lead biasing, DC leads-off detection, ultra-low power leads-on detection during standby mode, and extensive calibration voltages for built-in self-test. Soft power-up sequencing ensures no large transients are injected into the electrodes. The biopotential channel also has high input impedance, low noise, high CMRR, programmable gain, various low-pass and high-pass filter options, and a high-resolution analog-to-digital converter. The biopotential channel is DC coupled, can handle large electrode voltage offsets, and has a fast recovery mode to quickly recover from overdrive conditions, such as defibrillation and electrosurgery.The MAX30003 is available in a 28-pin TQFN and 30-bump wafer-level package (WLP), operating over the 0°C to +70°C commercial temperature range.Design Solution: A Customizable ECG Monitor You Can Call Your Own › Introducing the MAX-ECG-MONITOR Wearable ECG and Heart MonitorApplicationsBio Authentication and ECG-On-Demand ApplicationsChest Band Heart Rate Monitors for Fitness ApplicationsSingle Lead Event Monitors for Arrhythmia DetectionSingle Lead Wireless Patches for At-Home/In-Hospital Monitoring

The MAX30034 is a patent-pendingprotection devices intended to (with the help of external,energy-rated resistors) absorb repetitive defibrillation andother high-energy pulses to protect sensitive electroniccircuitry in ECG and other medical/industrial equipment.The devices can withstand over 100,000 defibrillation pulseswithout failure.The devices are intended to replace the gas-dischargetubes and transient absorbers in applications where itssignificant reduction in size is beneficial and its lower, well definedon-voltage can offer higher degrees of protection tosensitive electronics.The devices use a combination of a rugged integrated circuitprocess and high-speed circuitry to ensure veryfast turn-on times with trigger voltages low enough to notrequire secondary clamping circuitry. A low hold currentof approximately 175mA ensures protection is maintainedfor the entire length of the high-energy transient event.The MAX30034 is available in a small, 3mmx 5mm µMAX-8 package and are specified over the 0°Cto +70°C temperature range.ApplicationsAED UnitsClinical Patient MonitoringFixed Broadband Wireless AccessIndustrial Equipment ProtectionWearable Medical

The MAX30102 is an integrated pulse oximetry andheart-rate monitor biosensor module. It includes internal LEDs,photodetectors, optical elements, and low-noise electronicswith ambient light rejection. The MAX30102 provides acomplete system solution to ease the design-in processfor mobile and wearable devices.The MAX30102 operates on a single 1.8V power supplyand a separate 3.3V power supply for the internal LEDs.Communication is through a standard I2C-compatibleinterface. The module can be shut down through softwarewith zero standby current, allowing the power rails toremain powered at all times.ApplicationsFitness Assistant DevicesSmartphonesTabletsWearable Devices

The MAX30102 is an integrated pulse oximetry andheart-rate monitor biosensor module. It includes internal LEDs,photodetectors, optical elements, and low-noise electronicswith ambient light rejection. The MAX30102 provides acomplete system solution to ease the design-in processfor mobile and wearable devices.The MAX30102 operates on a single 1.8V power supplyand a separate 3.3V power supply for the internal LEDs.Communication is through a standard I2C-compatibleinterface. The module can be shut down through softwarewith zero standby current, allowing the power rails toremain powered at all times.ApplicationsFitness Assistant DevicesSmartphonesTabletsWearable Devices

The MAX30110 is a complete optical pulse oximetry and heart rate detection integrated analog front-end. The MAX30110 has a high-resolution, optical readout signal-processing channel with built-in ambient light cancellation, as well as high-current LED driver DACs, to form a complete optical readout signal chain. With external LED(s) and photo diode(s), the MAX30110 offers the lowest power, highest performance heart rate detection solution for wrist applications.The MAX30110 operates on a 1.8V main supply voltage, with a separate 3.1V to 5.25V LED driver power supply. The device supports a standard SPI compatible interface, as well as shutdown modes through the software with near-zero standby current, allowing the power rails to remain powered at all times.ApplicationsFitness Wearable DevicesIn-Ear Wearable DevicesSpO2 Monitoring DevicesWrist-Worn Wearable Devices

The MAX30110 is a complete optical pulse oximetry and heart rate detection integrated analog front-end. The MAX30110 has a high-resolution, optical readout signal-processing channel with built-in ambient light cancellation, as well as high-current LED driver DACs, to form a complete optical readout signal chain. With external LED(s) and photo diode(s), the MAX30110 offers the lowest power, highest performance heart rate detection solution for wrist applications.The MAX30110 operates on a 1.8V main supply voltage, with a separate 3.1V to 5.25V LED driver power supply. The device supports a standard SPI compatible interface, as well as shutdown modes through the software with near-zero standby current, allowing the power rails to remain powered at all times.ApplicationsFitness Wearable DevicesIn-Ear Wearable DevicesSpO2 Monitoring DevicesWrist-Worn Wearable Devices

The MAX20094/MAX20095 ICs combine a configurable constant-current/constant-voltage (CC/CV) battery charger with a high-efficiency synchronous boost controller to supply critical systems in the event the primary power source is lost. In addition, diagnostic features are available to check battery state-of-health (SOH) and IC functionality. Charging thresholds and the boost output voltage are configurable to support popular battery chemistries and a wide range of cell counts. To support system integration, the ICs have an I2C target port through which configuration and status bits can be accessed.Switching frequency of 2.2MHz also helps to reduce system cost by minimizing inductor size. The ICs also include a precision battery SOH check and have built-in functionality to minimize leakage current out of the backup battery (BUB).The MAX20094/MAX20095 are available in a 28-pin (5mm x 5mm) side-wettable TQFN package and are AECQ-100 qualified.ApplicationsAutomotive Telematics Battery BackupSingle or Multicell Battery-Backup Systems

The MAX20094/MAX20095 ICs combine a configurable constant-current/constant-voltage (CC/CV) battery charger with a high-efficiency synchronous boost controller to supply critical systems in the event the primary power source is lost. In addition, diagnostic features are available to check battery state-of-health (SOH) and IC functionality. Charging thresholds and the boost output voltage are configurable to support popular battery chemistries and a wide range of cell counts. To support system integration, the ICs have an I2C target port through which configuration and status bits can be accessed.Switching frequency of 2.2MHz also helps to reduce system cost by minimizing inductor size. The ICs also include a precision battery SOH check and have built-in functionality to minimize leakage current out of the backup battery (BUB).The MAX20094/MAX20095 are available in a 28-pin (5mm x 5mm) side-wettable TQFN package and are AECQ-100 qualified.ApplicationsAutomotive Telematics Battery BackupSingle or Multicell Battery-Backup Systems