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XRP7713ILB-F Datasheet(PDF) 1 Page - Exar Corporation

Part # XRP7713ILB-F
Description  Three Channel Digital PWM Step Down Controller
Download  29 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRP7713ILB-F Datasheet(HTML) 1 Page - Exar Corporation

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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


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