Maxim Integrated (MAX17552AUB+) DC/DC Controller, Synchronous Buck

DC/DC Controller, Synchronous Buck (Step Down), 4 V to 60 V, 1 Output, 2.2 MHz,µMAX-10Product OverviewThe MAX17552AUB+ is a 60V, 100mA, ultra small, high efficiency, synchronous stepdown DC to DC converter with 22µA no-load supply current in 10 pin µMAX package.The converters can deliver output current up to 100mA at output voltages of 0.8Vto 0.9 x VIN. The output voltage is accurate to within ±1.75%. The device employa peak-current-mode control architecture with a MODE pin that can be used tooperate the device in pulse-width modulation (PWM) or pulse frequency modulation(PFM) control schemes. PWM operation provides constant frequency operation atall loads and is useful in applications sensitive to variable switchingfrequency. PFM operation disables negative inductor current and additionallyskips pulses at light loads for high efficiency. The converters consume only22µA of no-load supply current in PFM mode. The low resistance, on-chip MOSFETsensure high efficiency at full load and simplify PCB layout.Supply voltage range is 4V to 60VOperating temperature range from -40°C to 125°CEliminates external components and reduces total costAdjustable switching frequency range of 100KHz to 2.2MHz with externalsynchronizationPeak efficiency is greater than 90%PFM feature for high light load efficiencyShutdown current is 1.2µA (typ)Peak current limit protection, overtemperature protectionProgrammable EN/UVLO threshold, programmable EN/UVLO threshold, monotonicstartup into prebiased o/pOpen-drain RESET pin allows output voltage monitoringApplicationsPower Management, Industrial, Portable Devices, HVACProduct InformationSupply Voltage Min: 4VSupply Voltage Max: 60VNo. of Outputs: 1 OutputDuty Cycle (%): 94%Controller IC Case Style: µMAXNo. of Pins: 10PinsSwitching Frequency: 2.2MHzTopology: Synchronous Buck (Step Down)Operating Temperature Min: -40°COperating Temperature Max: 125°CProduct Range: Himalaya SeriesMSL: MSL 1 - Unlimited