XRP7713 datasheet(1/29 Pages) EXAR

部件名	XRP7713

功能描述	Three Channel Digital PWM Step Down Controller

PDF	29 Pages

Scroll/Zoom	100%

制造商	EXAR [Exar Corporation]

网页	http://www.exar.com

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1 / 29 page

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December 2010

Rev. 1.1.1

Exar Corporation

www.exar.com

48720 Kato Road, Fremont CA 94538, USA

Tel. +1 510 668-7000 – Fax. +1 510 668-7001

GENERAL DESCRIPTION

The XRP7713 is a three output pulse-width

modulated (PWM) step-down DC-DC controller

with a built-in LDO for standby power and

GPIOs. The device provides a complete power

management solution in one IC and is fully

programmable via an I2C serial interface.

Independent Digital Pulse Width Modulator

(DPWM) channels regulate output voltages

and provide all required protection functions

such as current limiting and over-voltage

protection.

Each output voltage can be programmed from

0.9V to 5.1V without the need of an external

voltage divider. The wide range of the

programmable DPWM switching frequency

(from 300 KHz to 1.5 MHz) enables the user to

optimize between efficiency and component

size. Input voltage range is from 4.75V to

25V.

An I2C bus interface is provided to

program the IC as well as to communicate

with the host for fault reporting and handling,

power rail parameters monitoring, etc.

The device offers a complete solution including

independently programmable: soft-start, soft-

stop, start-up delay and ramp of each PWM

regulator.

APPLICATIONS

•

Multi Channel Power Supplies

•

Audio-Video Equipments

•

Industrial & Telecom Equipments

•

Processors & DSPs Based Equipments

FEATURES

•

3 Channel Step Down Controller

−

Programmable Output Voltage 0.9V-5.1V

−

Programmable 1.5MHz DPWM Frequency

−

Integrated FET Drivers

•

4.75V to 5.5V and 5.5V to 25V Input

Voltage Range

•

Up to 5 Reconfigurable GPIO Pins

•

Fully Programmable via I2C Interface

•

Independent Digital Pulse Width

Modulator (DPWM) channels

•

Complete Monitoring and Reporting

•

Complete Power Up/Down Sequencing

•

Full On Board Protection

OTP, UVLO, OCP and OVP

•

Built-in 3.3V/5V LDO

•

PowerArchitect™ Design Software

•

Green/Halogen Free 32-pin TQFN

TYPICAL APPLICATION DIAGRAM

Fig. 1: XRP7713 Application Diagram

类似零件编号 - XRP7713

制造商	部件名	数据表	功能描述
Exar Corporation	XRP7713	2Mb / 6P	Exar?셲 PowerXR D igital Power Solutions

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