ADP5052 5-Channel Integrated Power Solution with Quad Buck Regulators and 200 mA LDO Regulator

The ADP5052 combines four high performance buck regulators and one 200 mA low dropout (LDO) regulator in a 48-lead LFCSP package that meets demanding performance and board space requirements. The device enables direct connection to high input voltages up to 15 V with no preregulators.

Channel 1 and Channel 2 integrate high-side power MOSFETs and low-side MOSFET drivers. External NFETs can be used in low-side power devices to achieve an efficiency optimized solution and deliver a programmable output current of 1.2 A, 2.5 A, or 4 A. Combining Channel 1 and Channel 2 in a parallel configuration can provide a single output with up to 8 A of current.

Channel 3 and Channel 4 integrate both high-side and low-side MOSFETs to deliver output current of 1.2 A.

The switching frequency of the ADP5052 can be programmed or synchronized to an external clock. The ADP5052 contains a precision enable pin on each channel for easy power-up sequencing or adjustable UVLO threshold.

The ADP5052 integrates a general-purpose LDO regulator with low quiescent current and low dropout voltage that provides up to 200 mA of output current.

Applications

Small cell base stations
FPGA and processor applications
Security and surveillance
Medical applications

Features and Benefits

Wide input voltage range:
4.5 V to 15 V
±1.5% output accuracy over full temperature range
250 kHz to 1.4 MHz adjustable switching frequency
Adjustable/fixed output options via factory fuse
Power regulation
Channel 1 and Channel 2: programmable 1.2 A/2.5 A/4 A sync buck regulators with low-side
FET driver
Channel 3 and Channel 4: 1.2 A sync buck regulators

Channel 5: 200 mA low dropout (LDO) regulator
Always alive 5.1 V LDO supply for tiny load demand
See data sheet for additional features