Analog Devices Inc. ADP5037ACPZ-3-R7

Description
The ADP5037 combines two high-performance buck regulators and two low dropout (LDO) regulators in a small, 24-lead 4 mm x 4 mm LFCSP package. The high switching frequency of the buck regulators enables tiny multilayer external components and minimizes the board space. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5037 LDOS extend the battery life of portable devices. Regulators in the ADP5037 are activated through dedicated enable pins. The default output voltages can be externally set in the adjustable version or factory programmable to a wide range of preset values in the fixed voltage version.

Features
Main input voltage range: 2.3 V to 5.5 V
Two 800 mA buck regulators and two 300 mA LDOs
24-lead, 4 mm x 4 mm LFCSP package
Regulator accuracy: ±1.8%
Factory programmable or external adjustable VOUT
3 MHz buck operation with forced PWM and auto PWM/PSM modes
BUCK1/BUCK2: output voltage range from 0.8 V to 3.8 V
LD01/LDO2: output voltage range from 0.8 V to 5.2 V
LD01/LDO2: input supply voltage from 1.7 V to 5.5 V
LD01/LDO2: high PSRR and low output noise

Applications
Power for processors, ASICs, FPGAs, and RF chipsets
Portable instrumentation and medical devices
Space constrained devices