DESCRIPTION

· The NCP81232 is a dual-channel/multi-phase synchronous buck controller designed for DrMOS-supported applications.

· It offers 8 programmable power-stage configurations, differential voltage and current sensing, flexible power sequencing, and comprehensive protection features.

FEATURES

· Input voltage range: 4.5~20 V with input feedforward.

· Integrated 5.35 V LDO.

· Output voltage range: 0.6 V ~ 5.3 V.

· Switching frequency: 200k ~ 1.2 MHz.

· PWM output compatible with 3.3 V and 5 V DrMOS.

· Flexible 8 combinations of power stage configurations (1~2 output rails, 1~4 phases).

· DDR power mode option and interleaved operation.

· Differential output voltage and current sensing.

· Comprehensive fault protection and programmable hiccup over-current, under-voltage, over-voltage, and over-temperature protection.

· Thermal shutdown protection.

· QFN-40, 5x5 mm, 0.4 mm pitch package.

APPLICATIONS

· Telecom applications.

· Server and storage systems.

· Multiple rail systems.

· DDR applications.