GENERAL DESCRIPTION

The ADP5022 is a micro power management unit (micro PMU) that combines two high performance buck regulators and a low dropout regulator (LDO) in a tiny 16-ball 2.08 mm × 2.08 mm WLCSP to meet demanding performance and board space requirements.

FEATURES

Input voltage range: 2.4 V to 5.5 V

Tiny 16-ball, 2 mm × 2 mm WLCSP package

Overcurrent and thermal protection

Soft start

Factory programmable undervoltage lockout on VDDA system supply of either 2.2 V or 3.9 V

Factory programmable default output voltages for all 3 channels

Buck1 and Buck2 key specifications

Current mode architecture for excellent transient response

3 MHz operating frequency

Uses tiny multilayer inductors and capacitors

Forced PWM and auto PWM/PSM modes

Out-of-phase operation for reduced input filtering

100 duty cycle low dropout mode

24 μA typical quiescent current per channel, no switching

LDO key specifications

Stable with 1 μF ceramic output capacitors

High PSRR

60 dB up to 10 KHz

Low output noise

65 μV rms output noise at VOUT3 = 3.3 V

Low dropout voltage: 150 mV @ 150 mA load

11 μA typical ground current at no load

APPLICATIONS

USB devices

Handheld products

Multivoltage power for processors, ASICS, FPGAs, and RF chipsets