The MAX16163 and MAX16164 are nanopower on/off controllers with programmable sleep time. The devices integrate a power switch to gate an output, which provides up to 200mA load current.The MAX16163/MAX16164 use either an external resistor to program the sleep time or program the sleep time through an I2C bus. When the device powers up, it checks the connection on the PB/SLP pin; if the resistance between the PB/SLP pin and ground is larger than 5.5MΩ, the device is configured as I2C programmable. Otherwise, the device is configured as resistor programmable.When the MAX16163 powers up, it measures the resistance on the PB/SLP pin to the ground and sets the sleep time properly. It then asserts the OUT output. When the downstream device (e.g., a µC) finishes its task, it asserts a falling edge on the CLRB pin; the MAX16163 then deasserts OUT and the sleep timer starts. When the sleep timer expires, the MAX16163 asserts OUT again.When the MAX16164 powers up, it measures the resistance on the PB/SLP pin to the ground and sets the sleep time properly. It then keeps OUT deasserted and puts the device in SHUTDOWN state. The MAX16164 does not assert OUT until a pushbutton closure on the PB/SLP pin.The MAX16163/MAX16164 operate over the -40°C to +125°C temperature range and are available in a 1.54mm x 1.11mm, 6-bump thin wafer-level package (WLP) and a 6-pin µDFN package.ApplicationsBattery-Powered EquipmentRemote SensorsInternet of Things (IoT)Portable InstrumentsHandheld Consumer ElectronicsIndustrial EquipmentDisposable Low-Power Electronics

The MAX16163 and MAX16164 are nanopower on/off controllers with programmable sleep time. The devices integrate a power switch to gate an output, which provides up to 200mA load current.The MAX16163/MAX16164 use either an external resistor to program the sleep time or program the sleep time through an I2C bus. When the device powers up, it checks the connection on the PB/SLP pin; if the resistance between the PB/SLP pin and ground is larger than 5.5MΩ, the device is configured as I2C programmable. Otherwise, the device is configured as resistor programmable.When the MAX16163 powers up, it measures the resistance on the PB/SLP pin to the ground and sets the sleep time properly. It then asserts the OUT output. When the downstream device (e.g., a µC) finishes its task, it asserts a falling edge on the CLRB pin; the MAX16163 then deasserts OUT and the sleep timer starts. When the sleep timer expires, the MAX16163 asserts OUT again.When the MAX16164 powers up, it measures the resistance on the PB/SLP pin to the ground and sets the sleep time properly. It then keeps OUT deasserted and puts the device in SHUTDOWN state. The MAX16164 does not assert OUT until a pushbutton closure on the PB/SLP pin.The MAX16163/MAX16164 operate over the -40°C to +125°C temperature range and are available in a 1.54mm x 1.11mm, 6-bump thin wafer-level package (WLP) and a 6-pin µDFN package.ApplicationsBattery-Powered EquipmentRemote SensorsInternet of Things (IoT)Portable InstrumentsHandheld Consumer ElectronicsIndustrial EquipmentDisposable Low-Power Electronics

The MAX16173 is an ideal diode controller that provides system protection against input transients and reverse-current conditions. The wide operating voltage range of 3V to 50V, combined with 3µA of shutdown current, make the MAX16173 ideal for automotive applications. The MAX16173 features an integrated boost converter that is capable of driving the gate of the external n-channel power MOSFET 11V above the source during high load operation. Fast pull up and pull down current sources allow rectification of 50kHz to 250kHz AC components riding on the main supply input. A fast-acting comparator allows the MAX16173 to block reverse-current flow by shorting the gate to the source when the input is driven 10mV (typ) lower than the output. In light load applications, the MAX16173 regulates the voltage between the source and drain of the external n-channel MOSFET to 20mV(typ). For high load applications, the gate is driven high to enhance operation mode to minimize power dissipation and to increase system's power efficiency.During normal operation, the boost converter regulates the gate voltage by monitoring the voltage across CD and DRN. When the voltage across VCD-DRN drops below the 11V(typ) regulated voltage, the boost converter is enabled to maintain the regulation voltage. The MAX16173 features a diagnostic procedure to check the health of the power MOSFET. An open-drain active-high output (FETOK) deasserts low when the power MOSFET is either open or short. A power good output (PG) asserts high after the completion of power up to indicate the good power-up condition.The MAX16173 is available in a 3mm x 3mm, 10-pin TDFN package and operates over the automotive temperature range of -40°C to +125°C.ApplicationsAutomotive Power SystemsNetwork Telecom Power SystemsRAID SystemsServers

The MAX16545B/C is a circuit-breaker protection IC with anintegrated low-resistance MOSFET and lossless current-sensecircuitry featuring PMBus™ /SMBus control and reporting. TheIC is designed to provide the optimum solution for distribution,control, monitoring and protection of the system’s 12V powersupply. An internal LDO provides the bias supply voltage forthe protection IC.If no fault is detected, the MAX16545B/C initiates the startup.The device has been designed to provide controlled, monotonicstartup. Programmable soft-start ramp and delay is implementedto limit the inrush current during startup. The MAX16545B is setfor 16A Startup OCP, and the MAX16545C is set for 24A StartupOCP.The IC monitors the current and the voltage of the 12V systempower rail and provides multiple levels of protection with fastturn off if a fault is detected. Three methods of overcurrentprotection are provided. Programmable moderate OCP levelallows surge currents for a limited time. User-selectable severeOCP level provides a fast disconnect if a current exceedingthe severe OCP threshold is detected. An additional fixed highshutdown OCP level provides instantaneous disconnect tofurther protect the device.The lossless current sense provides high-accuracy currentsensing over load and temperature, improving overall systemenergy efficiency, and reducing dissipation. A signal proportionalto the load current is reported through an analog output andextensive reporting is provided through the SMBus/PMBus.Output voltage is monitored at all times. If at any time theoutput voltage falls below the programmable output undervoltagelockout threshold, the PWRGD signal is asserted low. Ifat any time the input voltage falls below the programmableinput undervoltage lockout threshold, the PWRGD signalis asserted low. The MAX16545B/C can be programmedthrough PMBus to provide input overvoltage protection. Inputovervoltage protection is disabled by default. When enabledthrough PMBus, if the input voltage exceeds a programmableovervoltage threshold, the MOSFET is latched off and a faultis communicated.The IC is used to distribute and control power to a systemfrom the +12V power supply.ApplicationsIntegrated Protection IC on 12V: Circuit Breaker, Hot Swap, Inrush ControlServers, Networking, Storage, Communication Equipment and AC/DC Power Supplies

The MAX16550A/MAX16550B are protection ICs with an integrated low-resistance MOSFET and losslesscurrent-sense circuitry featuring SMBus/PMBus™ control and reporting. The ICs are designed to provide the optimum solution for distribution, control, monitoring and protection of the system’s 12V power supply. An internal LDO provides the supply voltage for the protection IC.If no fault is detected, the ICs initiate the startup and have been designed to provide controlled, monotonic startup. Programmable soft-start ramp and delay is implemented to limit the in-rush current during startup.The ICs monitor the current and voltage of the 12V system power rail and provide multiple levels of protection with fast turn-off if a fault is detected.Maxim’s patented, lossless current sense provides high accuracy current sensing over load and temperature, improving overall system-energy efficiency, and reducing dissipation.If, at any time, the output voltage falls below the programmable output undervoltage-lockout threshold, the PWRGD signal is asserted low. If at any time the input voltage falls below the programmable input undervoltage-lockout threshold, the PWRGD signal is asserted low.See the Basic Application Circuit utilizing the MAX16550A/ MAX16550B ICs.ApplicationsCircuit Breaker/E-Fuse, Hot SwapIntegrated Protection IC on 12VServers, Networking, Storage, Communication Equipment and AC/DC Power Supplies

The MAX16550A/MAX16550B are protection ICs with an integrated low-resistance MOSFET and losslesscurrent-sense circuitry featuring SMBus/PMBus™ control and reporting. The ICs are designed to provide the optimum solution for distribution, control, monitoring and protection of the system’s 12V power supply. An internal LDO provides the supply voltage for the protection IC.If no fault is detected, the ICs initiate the startup and have been designed to provide controlled, monotonic startup. Programmable soft-start ramp and delay is implemented to limit the in-rush current during startup.The ICs monitor the current and voltage of the 12V system power rail and provide multiple levels of protection with fast turn-off if a fault is detected.Maxim’s patented, lossless current sense provides high accuracy current sensing over load and temperature, improving overall system-energy efficiency, and reducing dissipation.If, at any time, the output voltage falls below the programmable output undervoltage-lockout threshold, the PWRGD signal is asserted low. If at any time the input voltage falls below the programmable input undervoltage-lockout threshold, the PWRGD signal is asserted low.See the Basic Application Circuit utilizing the MAX16550A/ MAX16550B ICs.ApplicationsCircuit Breaker/E-Fuse, Hot SwapIntegrated Protection IC on 12VServers, Networking, Storage, Communication Equipment and AC/DC Power Supplies

The MAX16550 is a protection IC with anintegrated low-resistance MOSFET and lossless currentsensecircuitry featuring SMBus/PMBus™ control andreporting. This IC is designed to provide the optimum solutionfor distribution, control, monitoring and protection of thesystem’s 12V power supply. An internal LDO provides thesupply voltage for the protection IC.If no fault is detected, the IC initiates the startup and hasbeen designed to provide controlled, monotonic startup.Programmable soft-start ramp and delay is implementedto limit the in-rush current during startup.The IC monitors the current and voltage of the 12V systempower rail and provides multiple levels of protection withfast turn-off if a fault is detected.Maxim’s patented, lossless current sense provides highaccuracy current sensing over load and temperature,improving overall system-energy efficiency, and reducingdissipation.Output voltage is monitored at all times. If at any timethe output voltage falls below the programmable outputundervoltage-lockout threshold, the PWRGD signal isasserted low. If at any time the input voltage falls belowthe programmable input undervoltage-lockout threshold,the PWRGD signal is asserted low. The IC can beprogrammed through PMBus to provide input overvoltageprotection. Input overvoltage protection is disabled bydefault. When enabled through PMBus, if the inputvoltage exceeds a programmable overvoltage threshold,the MOSFET is latched off and a fault indicated.Applications240VACircuit Breaker/E-Fuse, Hot SwapIntegrated Protection IC on 12VServers, Networking, Storage, Communication Equipment and AC/DC Power Supplies

The MAX16731 is a fully integrated, highly efficient, step-down DC-DC switching regulator. The regulator is able to operate from 2.7V to 16V input supplies, and the output can be adjusted from 0.5V to 5.8V, delivering up to 30A of load current. The switching frequency of the device can be configured from 500kHz to 1.5MHz and can optimize the design in terms of size and performance. The MAX16731 utilizes fixed frequency, current-mode control with internal compensation. The IC features advanced modulation scheme (AMS) and selectable discontinuous current mode (DCM) operation to provide improved performance. Operation settings and configurable features can be selected by three programming pins PGM0, PGM1, and PGM2.The MAX16731 has an internal 1.8V linear regulator (LDO) output to power the gate drives (VCC) and internal circuitry (AVDD). The IC has multiple protections, including positive and negative overcurrent protection, output overvoltage protection, and overtemperature protection to ensure robust design. The device is available in a compact 2.52mm x 4.89mm WLP package. It supports -40°C to +125°C junction temperature operation.ApplicationsCommunications EquipmentMemory VDDQNetworking EquipmentPoint-of-Load Voltage RegulatorsServers and Storage Equipment

The MAX16731 is a fully integrated, highly efficient, step-down DC-DC switching regulator. The regulator is able to operate from 2.7V to 16V input supplies, and the output can be adjusted from 0.5V to 5.8V, delivering up to 30A of load current. The switching frequency of the device can be configured from 500kHz to 1.5MHz and can optimize the design in terms of size and performance. The MAX16731 utilizes fixed frequency, current-mode control with internal compensation. The IC features advanced modulation scheme (AMS) and selectable discontinuous current mode (DCM) operation to provide improved performance. Operation settings and configurable features can be selected by three programming pins PGM0, PGM1, and PGM2.The MAX16731 has an internal 1.8V linear regulator (LDO) output to power the gate drives (VCC) and internal circuitry (AVDD). The IC has multiple protections, including positive and negative overcurrent protection, output overvoltage protection, and overtemperature protection to ensure robust design. The device is available in a compact 2.52mm x 4.89mm WLP package. It supports -40°C to +125°C junction temperature operation.ApplicationsCommunications EquipmentMemory VDDQNetworking EquipmentPoint-of-Load Voltage RegulatorsServers and Storage Equipment

The MAX16895—MAX16899 is a family of small, low power, voltage-monitoring circuits with sequencing capability. These miniature devices offer tremendous flexibility with an adjustable threshold capable of monitoring down to 0.5V and an external capacitor-adjustable time delay. These devices are ideal for use in power-supply sequencing, reset sequencing, and power-switching applications. Multiple devices can be cascaded for complex sequencing applications.A high-impedance input with a 0.5V threshold allows an external resistive divider to set the monitored threshold. The output asserts (OUT = high or active-low OUT) when the input voltage rises above the 0.5V threshold and the enable input is asserted (ENABLE = high or active-low ENABLE = low). When the voltage at the input falls below 0.5V or when the enable input is deasserted (ENABLE = low or active-low ENABLE = high), the output deasserts (OUT = low or active-low OUT = high). All devices provide a capacitor-programmable delay time from when the input rises above 0.5V to when the output is asserted. The MAX1689_A versions provide the same capacitor-adjustable delay from when enable is asserted to when the output asserts. The MAX1689_P devices have a 150ns propagation delay from when enable is asserted to when the output asserts.The MAX16895A/P offers an active-high enable input and an active-high push-pull output. The MAX16896A/P offers an active-low enable input and an active-low pushpull output. The MAX16897A/P offers an active high enable input and an active-high open-drain output. Finally, the MAX16898A/P offers an active-low enable input and an active-low open-drain output. The MAX16899A/P offers an active-low enable with an active high push-pull output.All devices operate from a 1.5V to 5.5V supply voltage and are fully specified over the -40°C to +125°C operating temperature range. These devices are available in ultra-small 6-pin μDFN (1.0mm x 1.5mm) and thin SOT23 (1.60mm x 2.90mm) packages.ApplicationsMedical EquipmentIntelligent InstrumentsPortable EquipmentComputers/ServersCritical µP MonitoringSet-Top BoxesTelecom

The MAX16923 is a 4-channel power-management IC designed to accommodate the main rails used in modern automotive TFT displays. The MAX16923 and the MAX20069 TFT power supply and LED backlight driver combine to provide a two-chip solution to all automotive display power-supply requirements.The MAX16923 integrates a high-voltage buck converter that transforms battery voltages into a 5V or 3.3V intermediate rail. In addition, a high-voltage, always-on, low-quiescent-current linear regulator supplies power at 3.3V.The low-voltage section consists of a fully-integrated DC/DC converter and an LDO running off the intermediate rail. Section output power is available in several low-voltage combinations (see the Ordering Information table). In addition, an integrated watchdog timer guards against runaway code.A single START control pin initiates the start-up sequence, thereby simplifying device control. The MAX16923's external pMOSFET control block allows battery voltage to be switched to a downstream device, such as a backlight boost converter.The MAX16923 is available in a TQFN package and operates in the -40°C to 105°C temperature range. Design Solution: PMIC Streamlines Automotive TFT-LCD Display Design ›ApplicationsCentral Information DisplaysInfotainment DisplaysInstrument Clusters

The MAX16926 is a 4-channel power-management IC designed to accommodate the main rails used in modern automotive TFT displays. The MAX16926 and the MAX20069 TFT power supply and LED backlight driver combine to provide a two-chip solution to automotive display power supply requirements.The MAX16926 integrates a high-voltage buck converter that transforms battery voltages into a 3.3V intermediate rail. In addition, a high-voltage, always-on, low-quiescent-current linear regulator supplies power at 3.3V. The low-voltage section consists of a fully-integrated DC/DC converter and an LDO running off the intermediate rail. The low-voltage DC/DC converter provides 1.1V, while the LDO produces 1.8V. In addition, an integrated watchdog timer guards against runaway code.A single START control pin initiates the start-up sequence, thereby simplifying device control. The MAX16926's external pMOSFET control block allows battery voltage to be switched to a downstream device, such as a backlight boost converter. The MAX16926 is available in a TQFN package and operates in the -40°C to 105°C temperature range.ApplicationsInfotainment DisplaysCentral Information DisplaysInstrument Clusters

The MAX16972/MAX16972A provide high-ESD and short-circuit protection for the low-voltage internal USB data and USB power line in automotive radio, navigation, connectivity, and USB hub applications. The devices support both Hi-Speed USB (480Mbps) and full-speed USB (12Mbps) operation. In addition, the devices also include integrated circuitry to enable fast-charging for consumer devices adhering to either the Apple method or the Hi-Speed USB host-charger port-detection protocol and support USB On-The-Go (OTG). The short-circuit protection features include short-to-battery on the protected HVBUS, HVD+, and HVD- outputs, as well as short-to-HVBUS on the protected HVD+ and HVD- outputs. The devices are capable of a short-to-battery condition of up to +18V. Short-to-GND and overcurrent protection are also provided on the HVBUS output to protect the internal BUS power rail from overcurrent faults. Each device features high-ESD protection to ±15kV Air Gap method and ±8kV Contact method on all protected HVBUS, HVD+, and HVD- outputs. Each device features two low 4.0Ω on-resistance Hi-Speed USB switches, a current-limited low-voltage 31mΩ BUS switch, and provides an integrated high-voltage external power-switch controller. The BUS switch can start up into large capacitive noncompliant USB loads. The devices also feature an enable input, a fault output, integrated Apple iPhone®/iPad® fast-charging termination resistors, and an integrated host-charger port-detection circuit adhering to the USB 2.0 battery charging specification version 1.2. The devices are available in 16-pin QSOP and 16-pin (4mm × 4mm) TQFN packages and operate over the -40°C to +105°C temperature range. The MAX16972 and MAX16972A are drop-in compatible with MAX16970,MAX16971, MAX16970A, MAX16971A, MAX16917, MAX16919, and MAX16969 devices.ApplicationsAutomotive ConnectivityAutomotive Radio and NavigationTelematicsUSB Hub

The MAX20457 offers two automotive-grade synchronous buck converters with fixed frequency of either 2.1MHz or 400kHz. The two high-voltage synchronous step-down converters operate 180 degrees out of phase. The IC operates with an input voltage supply from 3.5V to 36V and can operate in dropout conditions by running at 95% duty cycle. It is intended for applications with mid- to high-power requirements that operate at a wide input voltage range such as during automotive cold-crank or engine stop-start conditions.High switching frequency up to 2.1MHz allows small external components, reduced output ripple, and guarantees no AM band interference. The switching frequency is fixed at 400kHz or 2.1MHz. FSYNC input programmability enables three modes for optimized performance: forced fixed-frequency operation, skip mode with ultra-low quiescent current, and phase-locked synchronization to an external clock. The spread spectrum option minimizes EMI interference.The IC features power-OK indicators and undervoltage lockout for the buck converters. Protection features include cycle-by-cycle current limit and thermal shutdown. The MAX20457 is specified for operation over the -40°C to +125°C automotive temperature range.ApplicationsAutomotive Start-Stop SystemInstrument ClusterNavigation and Radio Head UnitsTelematics Applications

The MAX20457 offers two automotive-grade synchronous buck converters with fixed frequency of either 2.1MHz or 400kHz. The two high-voltage synchronous step-down converters operate 180 degrees out of phase. The IC operates with an input voltage supply from 3.5V to 36V and can operate in dropout conditions by running at 95% duty cycle. It is intended for applications with mid- to high-power requirements that operate at a wide input voltage range such as during automotive cold-crank or engine stop-start conditions.High switching frequency up to 2.1MHz allows small external components, reduced output ripple, and guarantees no AM band interference. The switching frequency is fixed at 400kHz or 2.1MHz. FSYNC input programmability enables three modes for optimized performance: forced fixed-frequency operation, skip mode with ultra-low quiescent current, and phase-locked synchronization to an external clock. The spread spectrum option minimizes EMI interference.The IC features power-OK indicators and undervoltage lockout for the buck converters. Protection features include cycle-by-cycle current limit and thermal shutdown. The MAX20457 is specified for operation over the -40°C to +125°C automotive temperature range.ApplicationsAutomotive Start-Stop SystemInstrument ClusterNavigation and Radio Head UnitsTelematics Applications

The MAX20457 offers two automotive-grade synchronous buck converters with fixed frequency of either 2.1MHz or 400kHz. The two high-voltage synchronous step-down converters operate 180 degrees out of phase. The IC operates with an input voltage supply from 3.5V to 36V and can operate in dropout conditions by running at 95% duty cycle. It is intended for applications with mid- to high-power requirements that operate at a wide input voltage range such as during automotive cold-crank or engine stop-start conditions.High switching frequency up to 2.1MHz allows small external components, reduced output ripple, and guarantees no AM band interference. The switching frequency is fixed at 400kHz or 2.1MHz. FSYNC input programmability enables three modes for optimized performance: forced fixed-frequency operation, skip mode with ultra-low quiescent current, and phase-locked synchronization to an external clock. The spread spectrum option minimizes EMI interference.The IC features power-OK indicators and undervoltage lockout for the buck converters. Protection features include cycle-by-cycle current limit and thermal shutdown. The MAX20457 is specified for operation over the -40°C to +125°C automotive temperature range.ApplicationsAutomotive Start-Stop SystemInstrument ClusterNavigation and Radio Head UnitsTelematics Applications

The MAX20457 offers two automotive-grade synchronous buck converters with fixed frequency of either 2.1MHz or 400kHz. The two high-voltage synchronous step-down converters operate 180 degrees out of phase. The IC operates with an input voltage supply from 3.5V to 36V and can operate in dropout conditions by running at 95% duty cycle. It is intended for applications with mid- to high-power requirements that operate at a wide input voltage range such as during automotive cold-crank or engine stop-start conditions.High switching frequency up to 2.1MHz allows small external components, reduced output ripple, and guarantees no AM band interference. The switching frequency is fixed at 400kHz or 2.1MHz. FSYNC input programmability enables three modes for optimized performance: forced fixed-frequency operation, skip mode with ultra-low quiescent current, and phase-locked synchronization to an external clock. The spread spectrum option minimizes EMI interference.The IC features power-OK indicators and undervoltage lockout for the buck converters. Protection features include cycle-by-cycle current limit and thermal shutdown. The MAX20457 is specified for operation over the -40°C to +125°C automotive temperature range.ApplicationsAutomotive Start-Stop SystemInstrument ClusterNavigation and Radio Head UnitsTelematics Applications

The MAX20461 combines a 3A high-efficiency, automotive-grade, step-down converter, a USB Type-C/BC1.2host charger emulator, and high-bandwidth USB protection switches for automotive USB 2.0 host applications.The device also includes a USB load current-sense amplifier and a configurable feedback-adjustment circuit that provides automatic USB voltage compensation for voltage drops in captive cables often found in automotive applications. The device limits the USB load current using both a fixed internal peak-current threshold and a user-configurable external current-sense USB load threshold.The MAX20461 is optimized for high-frequency operation and includes programmable frequency selection from 310kHz to 2.2MHz, allowing optimization of efficiency, noise, and board space based on the application requirements. The fully synchronous DC-DC converter integrates high-side and low-side MOSFETs with an external SYNC input/output, and can be configured for spread-spectrum operation.The MAX20461 allows flexible configuration and advanced diagnostic options for both standalone and supervised applications. The device can be programmed using either external programming resistors and/or internal I²C registers through the I²C bus.The MAX20461 is available in a small, 5mm x 5mm 32-pin TQFN package. It is designed to minimize required external components and layout area.ApplicationsAutomotive Connectivity/TelematicsAutomotive Radio and NavigationUSB Port for Host and Hub Applications

The MAX20461 combines a 3A high-efficiency, automotive-grade, step-down converter, a USB Type-C/BC1.2host charger emulator, and high-bandwidth USB protection switches for automotive USB 2.0 host applications.The device also includes a USB load current-sense amplifier and a configurable feedback-adjustment circuit that provides automatic USB voltage compensation for voltage drops in captive cables often found in automotive applications. The device limits the USB load current using both a fixed internal peak-current threshold and a user-configurable external current-sense USB load threshold.The MAX20461 is optimized for high-frequency operation and includes programmable frequency selection from 310kHz to 2.2MHz, allowing optimization of efficiency, noise, and board space based on the application requirements. The fully synchronous DC-DC converter integrates high-side and low-side MOSFETs with an external SYNC input/output, and can be configured for spread-spectrum operation.The MAX20461 allows flexible configuration and advanced diagnostic options for both standalone and supervised applications. The device can be programmed using either external programming resistors and/or internal I²C registers through the I²C bus.The MAX20461 is available in a small, 5mm x 5mm 32-pin TQFN package. It is designed to minimize required external components and layout area.ApplicationsAutomotive Connectivity/TelematicsAutomotive Radio and NavigationUSB Port for Host and Hub Applications

The MAX20461 combines a 3A high-efficiency, automotive-grade, step-down converter, a USB Type-C/BC1.2host charger emulator, and high-bandwidth USB protection switches for automotive USB 2.0 host applications.The device also includes a USB load current-sense amplifier and a configurable feedback-adjustment circuit that provides automatic USB voltage compensation for voltage drops in captive cables often found in automotive applications. The device limits the USB load current using both a fixed internal peak-current threshold and a user-configurable external current-sense USB load threshold.The MAX20461 is optimized for high-frequency operation and includes programmable frequency selection from 310kHz to 2.2MHz, allowing optimization of efficiency, noise, and board space based on the application requirements. The fully synchronous DC-DC converter integrates high-side and low-side MOSFETs with an external SYNC input/output, and can be configured for spread-spectrum operation.The MAX20461 allows flexible configuration and advanced diagnostic options for both standalone and supervised applications. The device can be programmed using either external programming resistors and/or internal I²C registers through the I²C bus.The MAX20461 is available in a small, 5mm x 5mm 32-pin TQFN package. It is designed to minimize required external components and layout area.ApplicationsAutomotive Connectivity/TelematicsAutomotive Radio and NavigationUSB Port for Host and Hub Applications