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

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

Low Noise Micropower Precision Voltage Reference (2.5 V) Features: Supply Range 2.8 V to 15 V, ADR291 4.4 V to 15 V, ADR292 Supply Current 12 µA Max Low-Noise 8 µV and 12 µVP-P (0.1 Hz to 10 Hz) High Output Current 5 mA Temperature Range -40ºC to +125ºC Pin Compatible with REF02 / REF191

High Accuracy Ultralow Quiescent Current, 1A, anyCAP Dropout Regulator Features: High Accuracy Over Line and Load: ±0.8% @ 25°C, ±1.4% Over Temperature Ultralow Dropout Voltage: 190 mV (Typ) @ 1 A Requires Only CO = 1 µF for Stability anyCAP = Stable with Any Type of Capacitor (Including MLCC) Current and Thermal Limiting Low Noise 2.7 V to 8 V Supply Range –40°C to +85°C Ambient Temperature Range SOT-223 Package

4.0 Gbps Dual Driver

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

Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter Features: Input voltage: 2.3 V to 5.5 V Peak efficiency: 95% 3 MHz fixed frequency operation Typical quiescent current: 24 μA Very small solution size 6-lead, 1 mm × 1.5 mm WLCSP package Fast load and line transient response 100% duty cycle low dropout mode Internal synchronous rectifier, compensation, and soft start Current overload and thermal shutdown protections Ultralow shutdown current: 0.2 μA (typical) Forced PWM and automatic PWM/PSM modes Supported by ADIsimPower™ design tool