Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO
ADP5022
FEATURES
Input voltage range: 2.4 V to 5.5 V Tiny 16-ball, 2 ...
Dual 3 MHz, 600 mA Buck
Regulator with 150 mA LDO
ADP5022
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
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.
The high switching frequency of the buck
regulators enables tiny multilayer external components and minimizes the board space required. When the MODE pin is set high, the buck
regulators operate in forced PWM...