The SC283 is Semtech’s new 1,8 A dual-channel regulator for point-of-load (POL) applications, combining two step-down regulators in a 2 x 3 x 0,8 mm, 18-pad MLPQ package. With integrated VID pins to enable independent configuration and control of the output voltages of each regulator, the IC eliminates the need for two pairs of external feedback resistors. The regulator operates at a fixed switching frequency of 2,5 MHz, enabling it to work with very small chip inductors, providing a 111 mm² solution footprint. The SC283 supports power conversion efficiency up to 94%, low shutdown current (1 μA typical) and excellent transient response for 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.
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