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-optimised solution and deliver a programmable output current of 1.2A, 2.5A, or 4A. Combining Channel 1 and Channel 2 in a parallel configuration can provide a single output with up to 8A of current.
Channel 3 and Channel 4 integrate both high-side and low-side MOSFETs to deliver output current of 1.2A.
The switching frequency of the ADP5052 can be programmed or synchronised to an external clock. The ADP5052 contains a precision enable pin on each channel for power-up sequencing or adjustable UVLO threshold. It integrates a general-purpose LDO regulator with low quiescent current and low dropout voltage that provides up to 200 mA of output current.
You might use the device, Analog suggests, in small-cell base stations, FPGA and processor applications, security and surveillance, or in medical applications.
Features include input voltage range of 4.5 to 15V; ±1.5% output accuracy over full temperature range; 250 kHz to 1.4 MHz adjustable switching frequency; and adjustable/fixed output options via factory fuse.