Configurable, Dual 2 A/Single 4 A, Synchronous Step-Down DC-to-DC Regulator Features: Configurable 3 A/1 A or 2 A/2 A dual output load combinations or 4 A combined single output High efficiency: up to 95% Input voltage VIN: 2.75 V to 5.5 V Selectable fixed output: 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V or adjustable output voltage to 0.6 V minimum ±1.5% accuracy reference voltage Selectable fixed switching frequency: 300 kHz, 600 kHz, or 1.2 MHz Optimized gate slew rate for reduced EMI External synchronization or internal clock output Dual-phase, 180° shifted PWM channels Current mode for fast transient response, no current sense resistor required Pulse-skip under light load or forced PWM operation See data sheet for additonal features

2A, 1.2MHz Synchronous Step-Down DC-to-DC Regulator Features: Continuous output current: 2A 145 mΩ and 70 mΩ integrated FET Input voltage range from 2.3 V to 5.5 V Output voltage from 0.6V to VIN Precision threshold enable input ±1.5% output accuracy Supported by ADIsimPower™ design tool See datasheet for additional features

20 V, 4 A, Synchronous Step-Down DC-to-DC Regulator Features: Input voltage: 4.5 V to 20 V Integrated MOSFET: 44 m/11.6 m Reference voltage: 0.6 V ± 1% Continuous output current: 4 A 180° out of phase clock synchronizationSynchronizes to external clock: 200 kHz to 1.4 MHz Programmable switching frequency: 200 kHz to 1.4 MHz Precision enable and power good External compensation Internal soft start with external adjustable option Startup into a precharged output Supported by ADIsimPower design tool

20 V, 6 A, Synchronous Step-Down DC-to-DC Regulator Features: Input voltage: 4.5 V to 20 V Integrated MOSFET: 44 m/11 m Reference voltage: 0.6 V ± 1% Continuous output current: 6 A Programmable switching frequency: 200 kHz to 1.4 MHz Synchronizes to external clock: 200 kHz to 1.4 MHz 180° out of phase clock synchronization Precision enable and power good External compensation Internal soft start with external adjustable option Startup into a precharged output Supported by ADIsimPower design tool

20 V, 6 A, Synchronous, Step-Down DC-to-DC Regulator Features: Input voltage range: 4.5 V to 20 V Integrated MOSFET: 44 mΩ typical/11 mΩ typical Reference voltage: 0.6 V ± 1% Continuous output current: 6 A Programmable current-limit thresholdProgrammable switching frequency: 200 kHz to 1400 kHz Precision enable and power good External compensation Internal soft start with external adjustable option Startup into a precharged output Supported by ADIsimPower design tool

18 V, 12 A Step-Down Regulator with Programmable Current Limit Features: Input voltage: 4.5 V to 18 V Continuous output current: 12 A Integrated MOSFETs: 17 mΩ high-side/4.5 mΩ low-side 0.6 V ± 0.5% reference voltage Programmable switching frequency range: 200 kHz to 2200 kHz Enhanced transient response Programmable current limit with ±10% accuracy Precision enable and power good External compensation and soft start Start up into a precharged output Supported by the ADIsimPower design tool

3 A, 36 V, Synchronous Step-Down DC-to-DC Regulator Features: Continuous output current: 3 A Input voltage: 4.5 V to 36 V Integrated MOSFETs: 98 mΩ/35 mΩ Reference voltage: 0.6 V ± 1% Fast minimum on time: 50 ns Programmable switching frequency: 200 kHz to 1.8 MHz Synchronizes to external clock: 200 kHz to 1.8 MHz Precision enable and power good Cycle-by-cycle current limit with hiccup protection External compensation Programmable soft start time Startup into a precharged output Supported by ADIsimPower design tool

600 mA, 2.5 MHz Buck-Boost DC-to-DC Converter Features: 1 mm height profile Compact PCB footprint Seamless transition between modes 38 μA typical quiescent current 2.5 MHz operation enables 1.5 μH inductor Input voltage: 2.3 V to 5.5 V Fixed output voltage: 2.8 V to 5.0 V See data sheet for additional features

Ultralow Power Energy Harvester PMU with MPPT and Charge Management Features: Boost regulator with maximum power point tracking (MPPT) with dynamic sensing or no sensing mode Hysteresis mode for best ultralight load efficiency Operating quiescent current of SYS pin (VIN > VCBP ≥ VMINOP): 510 nA Sleeping quiescent current of SYS pin (VCBP < VMINOP): 390 nA Input voltage operating range: 0.08 V to 3.3 V Fast cold start from 380 mV (typical) with charge pump Programmable shutdown point on MINOP pin based on the input open circuit voltage (OCV) 150 mA regulated output from 1.5 V to 3.6 V Battery terminal charging threshold (2.2 V to 5.2 V) to support charging storage elements Optional BACK_UP power path management Radio frequency (RF) transmission conducive to shutting down the switcher temporarily via microcontroller unit (MCU) communication

50 mA/500 mA, High Efficiency, Ultralow Power Step-Down Regulator Features: Input start-up voltage range: 2.15 V to 6.50 V Operates down to 2.00 V voltage Ultralow 180 nA quiescent current with no load Selectable output voltage of 1.2 V to 3.6V or 0.8V to 5.0V ±1.5% output accuracy over full temperature range in PWM mode Selectable hysteresis mode or PWM operation mode Output current Up to 50 mA in hysteresis mode Up to 500 mA in PWM mode VOUTOK flag monitors the output voltage 100% duty cycle operation mode 2 MHz switching frequency with optional synchronization input from 1.5 MHz to 2.5 MHz QOD option UVLO, OCP, and TSD protection 9-ball, 1.65 mm × 1.87 mm WLCSP −40°C to +125°C junction temperature