XR77129 Datasheet - Exar

XR77129 40V Quad Output Digital PWM/PFM Universal PMIC

The XR77129 is a quad channel digital Pulse Width Modulated (PWM) step down (buck) controller. A wide 6V to 40V input voltage range allows for single supply operation from standard power rails. With integrated FET gate drivers, two LDOs for standby power and a 105kHz to 1.23MHz independent channel t.

XR77129 Features

* Quad Channel Step-down Controller  Digital PWM 105kHz-1.23MHz Operation  Individual Channel Frequency Selection  Patented digital PFM with Ultrasonic mode  Patented Over Sampling Feedback  Programmable 5 coefficient PID control  Integrated MOSFET Drivers

* 6V to 40V Input Voltage

XR77129-Exar.pdf