DESCRIPTION

The SP6127 is a PWM controlled step down (buck) voltage mode regulator with VIN feedforward and internal Type-II compensation. It operates from 4.5V to 29V VIN, making it suitable for 5V, 12V and 24V applications. By using a PMOS driver, this device is capable of operating at 100% duty cycle. The highside driver is designed to drive the gate 5V below VIN. The programmable overcurrent protection is based on the high-side MOSFET’s ON resistance sensing and allows setting the overcurrent protection value up to 300mV threshold (measured between VIN-LX). The SP6127 is available in a space-saving 6-pin TSOT package making it the smallest controller available capable of operating from 24VDC supplies.

FEATURES

■ Wide 4.5V – 29V Input Voltage Range

■ Internal compensation

■ Built-in High-Current PMOS Driver

■ Adjustable Overcurrent Protection

■ Internal soft start

■ 900kHz Constant Frequency Operation

■ 0.6V Reference Voltage

■ 1% output setpoint accuracy

■ Lead Free, RoHS Compliant Package: Small 6-pin TSOT