The DCP3603 from STMicroelectronics is a monolithic buck converter that delivers up to 3 A from a 3 mm × 1.6 mm footprint, supporting a 3.3 V to 36 V input range for applications such as smart meters, appliances and industrial 24 V systems. The device integrates power switches and compensation, operates at 1 MHz or 500 kHz, and achieves up to 93% efficiency with low quiescent current of 85 µA. Available in a SOT23 6-lead package, it supports forced-PWM or pulse-skipping modes and requires minimal external components for compact power designs.
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