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

Dual, 300 mA Fixed Output, Low Noise, High PSRR Voltage Regulator Features: Input voltage range: 2.5 V to 5.5 V Small, 8-lead, 2 mm x 2 mm LFCSP package Initial accuracy: ±1% High PSRR: 70 dB at 10 kHz, 60 dB at 100 kHz, 40 dB at 1 MHz Low noise: 27 μV rms at VOUT = 1.2 V, 50 μV rms at VOUT = 2.8 V Excellent transient response Low dropout voltage: 170 mV at 300 mA load 65 μA typical ground current at no load, both LDOs enabled Overcurrent and thermal protection

Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter with an Internal Discharge Switch 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

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

Microprocessor Supervisory Circuit

ADP3301 - High Accuracy ANYCAP 100mA Low Dropout Linear Regulator

0.8% Accurate Quad UV/OV Positive/Negative Voltage Supervisor Features: Chinese data sheet availableQuad undervoltage/overvoltage (UV/OV) positive/negative supervisorSupervises up to two negative railsAdjustable UV and OV input thresholdsIndustry leading threshold accuracy over the extended temperature range: 0.8%1 V buffered reference outputOpen-drain UV and OV reset outputsAdjustable reset timeout with disable optionOutputs guaranteed down to VCC of 1 VPlease see data sheet for additional features

Integrated Circuit True RMS-to-DC Converter

Hot Swap Controller and I2C Power Monitor Features: Allows safe board insertion and removal from a live backplane  Controls supply voltages from 3.15 V to 16.5 V  Precision current sense amplifier  Precision voltage input  12-bit ADC for current and voltage readback  Charge pumped gate drive for external N-channel FET  I2C fast mode-compliant interface (400 kHz maximum) Adjustable analog current limit with circuit breaker  ±3% accurate hot swap current limit level  Fast response limits peak fault current  Automatic retry or latch-off on current fault  Programmable hot swap timing via TIMER pin  Active-high ON pin  2 address pins allow 16 devices on the same bus 10-lead MSOP