MIC261201YJL EV: 4.5 ~ 28V in, 0.8 ~ 5.5V out DC/DC

The MIC261201 DC-DC regulator operates over an input supply range of 4.5V to 28V, and provides a regulated output at up to 12A of output current. The output voltage is adjustable to 0.8V, with a typical accuracy of ±1%; the device operates at a switching frequency of 600kHz. The switching frequency remains fairly constant, with changes in the input voltage and output load.

Micrel’s Hyper Speed Control™ architecture allows for ultra-fast transient response, while reducing the output capacitance and it also makes (High VIN)/(Low VOUT) operation possible. The MIC261201 utilizes an adaptive TON ripple control architecture.

An undervoltage lockout feature is provided to ensure proper operation under power-sag conditions. It also includes an internal soft-start feature to reduce the inrush current. Foldback current limit and “hiccup” mode short-circuit protection, as well as thermal shutdown ensures protection of the IC during fault conditions.

Note: this evaluation board is for 12A applications.