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XRP7724 - Quad Channel Digital PWM/PFM Programmable Power Management System

Description

The XRP7724 is a quad channel Digital Pulse Width Modulated (DPWM) Step down (buck) controller.

A wide 4.75V to 5.5V and 5.5V to 25V input voltage dual range allows for single supply operation from standard power rails.

Features

  • Quad Channel Step-down Controller  Digital PWM 105kHz-1.23MHz Operations  Individual Channel Frequency Selection  Patented digital PFM with Ultrasonic mode  Patented Over Sampling Feedback  Integrated MOSFET Drivers  Programmable 5 coefficient PID control.
  • 4.75V to 25V Input Voltage  4.75V-5.5 and 5.5V-25V Input Ranges  0.6V to 5.5V Output voltage.
  • SMBus Compliant - I2C Interface  Full Power Monitoring and Reporting.
  • 3 x 15V Capable PSIO + 2 x GPIOs.
  • Full Start.

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Datasheet preview – XRP7724

Datasheet Details

Part number XRP7724
Manufacturer Exar
File Size 1.52 MB
Description Quad Channel Digital PWM/PFM Programmable Power Management System
Datasheet download datasheet XRP7724 Datasheet
Additional preview pages of the XRP7724 datasheet.

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Full PDF Text Transcription

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XRP7724 Quad Channel Digital PWM/PFM Programmable Power Management System October 2012 Rev. 1.0.1 GENERAL DESCRIPTION The XRP7724 is a quad channel Digital Pulse Width Modulated (DPWM) Step down (buck) controller. A wide 4.75V to 5.5V and 5.5V to 25V input voltage dual 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 to channel programmable constant operating frequency, the XRP7724 reduces overall component count and solution footprint and optimizes conversion efficiencies. A selectable digital Pulse Frequency Mode (DPFM) capable of better than 80% efficiency at light current load and low operating current allow for portable and Energy Star compliant applications.
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