The Semtech SC283 is said to be the world’s smallest 1.8-A dual-channel regulator for PoL applications. The part combines two step-down regulators in a small, low-profile 2 x 3 x 0.8mm, 18-pad MLPQ package.
The SC283 POL regulator operates at a fixed switching frequency of 2.5MHz, enabling it to work with very small chip inductors, allowing for a 111mm2 solution footprint. It supports output currents up to 1.8A per channel, has a power conversion efficiency of up to 94%, low shutdown current (1µA typical) and its transient response enables fast system wake-up from low-power standby mode to full-power operation.
Each channel offers fifteen pre-determined output voltages via four control pins that are programmable from 0.8 to 3.3 V. The device powers a wide range of loads, including A/D converters, microcontrollers, DSPs, and digital ASICs in networking, communications, consumer, industrial, and office automation equipment, as well as solid-state drive applications.