XRP7740

XRP7740 www.DataSheet4U.com Quad-Output Digital PWM Buck Controller Supporting high current loads September 2009 REV 1.1.0 KEY FEATURES ƒ Four switching buck (step-down) controllers each with internal FET drivers. Two controllers (2 & 4) support loads up to 15A; two controllers (1 & 3) support load up to 5A. ƒ 6.5V to 20V input voltage range – no additional voltage rails required ƒ Output voltages programmable from 0.9V to 5.1V ƒ Up to 6 reconfigurable GPIO pins ƒ Fully programmable via I2C interface ƒ Independent Digital Pulse Width Modulator (DPWM) channels with five coefficient PID control ƒ High Integration: elimination of external circuits and components required for compensation, parameter adjustment and interface ƒ Programmable DPWM frequency range (300 kHz to 1.5 MHz) enables efficiency and component size optimization ƒ Complete power monitoring and reporting ƒ Independently controlled start-up delay and ramp for each regulator, including soft start with a pre-biased load voltage ƒ Independently controlled soft-stop delay and ramp for each regulator with a programmable stop voltage ƒ Over-temperature protection (OTP) and Under Voltage Lockout (UVLO); per-channel over-current protection (OCP) and over-voltage protection (OVP) ƒ Built-in LDO (configurable to 3.3V or 5V) with over-current protection ƒ Non-volatile memory for system configuration ƒ Configuration development tools GENERAL DESCRIPTION The XRP7740 is a quad-output pulse-width modulated (PWM) step-down DC-D...