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XRP7714

Exar
Part Number XRP7714
Manufacturer Exar
Description Quad Channel Digital PWM Step Down Controller
Published Jul 5, 2010
Detailed Description March 2011 XRP7714 Quad Channel Digital PWM Step Down Controller Rev. 1.1.6 GENERAL DESCRIPTION The XRP7714 is a quad-...
Datasheet PDF File XRP7714 PDF File

XRP7714
XRP7714

Overview
March 2011 XRP7714 Quad Channel Digital PWM Step Down Controller Rev.
1.
1.
6 GENERAL DESCRIPTION The XRP7714 is a quad-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, softstop, 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 • 4 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 6 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 40-pin TQFN TYPICAL APPLICATION DIAGRAM VIN: 4.
75 TO 25V Vout1 LX1 LDO OUT C8 GPIO0 GPIO1 GPIO2 GPIO3 SDA I2C SCL ENABLE VCCA Vin C3 GL1 GH1 C5 LDOOUT 40 VIN1 39 VIN2 38 VCCA 37...


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