Synchronous Buck Controller with Constant On-Time and Valley Current Mode with Power Saving Mode Features: Power input voltage range: 2.95 V to 20 V On-board bias regulator Minimum output voltage: 0.6 V 0.6 V reference voltage with ±1.0% accuracy Supports all N-channel MOSFET power stages Available in 300 kHz, 600 kHz, and 1.0 MHz options No current-sense resistor required Power saving mode (PSM) for light loads (ADP1879 only) Resistor programmable current limit Power good with internal pull-up resistor Externally programmable soft-start See data sheet for additional features

ADP3333 - High Accuracy UltraLow IQ, 300mA, ANYCAP Low Dropout Regulator

Microprocessor Supervisory Circuit

Digital Controller for Isolated Power Supply Applications

Tiny I2C Programmable Linear Battery Charger with Power Path and USB Mode Compatibility Features: 2.6 mm x 2 mm WLCSP Package Fully programmable via I2C Flexible digital control inputs Up to 2.1 A current from an ac charger in LDO mode Operating input voltage from 4.0 V to 6.7 V Tolerant input voltage -0.5 V to +20 V (USB VBUS) Fully compatible with USB 3.0 and USB Battery Charging Specification 1.2 Built-in current sensing and limiting As low as 30 mΩ battery isolation FET between battery and charger output Thermal regulation prevents over heating Compliant with JEITA 1 and JEITA 2 Li-Ion battery charging temperature specifications SYS_EN flag permits the system to be disabled until battery is at minimum required level for guaranteed system start-up.

3-Channel Digital Power Supply Controller

ADP3301 - High Accuracy ANYCAP 100mA Low Dropout Linear Regulator

ADM6346 - UltraLow Power, Microprocessor RESET Circuit

Ultralow Power, 3-Lead, SOT-23, Microprocessor Reset Circuit, Active-Low Open-Drain Output, 1 A Supply Current Features: Ultralow supply current of 1 μA maximum (ADM6326/ADM6328) Accurate monitoring of 2.5 V, 3 V, 3.3 V, and 5 V rails Reset thresholds available in increments from 2.2 V to 4.63 V Glitch immunity from negative-going VCC transients 2 reset output options Push-pull RESET (ADM6326/ADM6346) Open-drain RESET (ADM6328/ADM6348) Minimum reset timeout of 100 ms Operating temperature range of −40°C to +85°C 3-lead SOT-23 package

20 V, 500 mA, Low Noise, CMOS LDO Features: Input voltage range: 3.3 V to 20 V Maximum output current: 500 mA Low Noise: 15 μV rms for fixed output versions PSRR Performance of 60 dB at 10 kHz, VOUT = 3.3 V Reverse current protection Low dropout voltage: 350 mV at 500 mA Initial accuracy: ±0.8% Accuracy over line, load, and temperature −2% to +1%, TJ = −40°C to +125°C −1.25% to +1%, TJ = 0°C to +85°C Low quiescent current (VIN = 5 V), IGND = 900 μA with 500 mA load Low shutdown current: <40 μA at VIN = 12 V, stable with small 1 μF ceramic output capacitor 7 fixed output voltage options: 1.5 V, 1.8 V, 2.5 V, 3 V, 3.3 V, 5 V, and 9 V Adjustable output from 1.22 V to VIN − VDO Foldback current limit and thermal overload protection User programmable precision UVLO/enable Power-good indicator 8-lead LFCSP and 8-lead SOIC packages