XRP7704ILB-AAAA-F Datasheet PDF - Exar Corporation

GENERAL DESCRIPTION
   The XRP7704 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 the included 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.

KEY FEATURES
◾ Four switching buck (step-down) controllers each with
   internal FET drivers
◾ 6.5V to 20V input voltage range – no additional voltage
   rails required
◾ Output voltages programmable from 0.9V to 5.1V
◾ Up to 6 reconfigurable GPIO pins
◾ Fully programmable via I2C interface
◾ Independent Digital Pulse Width Modulator (DPWM)
   channels with five coefficient PID control
◾ High Integration: elimination of external circuits and
   components required for compensation, parameter
   adjustment and interface
◾ Programmable DPWM frequency range (300 kHz to 1.5
   MHz) enables efficiency and component size optimization
◾ Complete power monitoring and reporting
◾ Independently controlled start-up delay and ramp for each
   regulator, including soft start with a pre-biased load
   voltage
◾ Independently controlled soft-stop delay and ramp for
   each regulator with a programmable stop voltage
◾ Over-temperature protection (OTP) and Under Voltage
   Lockout (UVLO); per-channel over-current protection
   (OCP) and over-voltage protection (OVP)
◾ Built-in LDO (configurable to 3.3V or 5V) with over-current
   protection
◾ Non-volatile memory for system configuration
◾ Configuration development tools

APPLICATIONS
◾ Computing: Servers, Storage Systems
◾ Consumer: Set-top box (STB), Game Systems
◾ Industrial: ATE, DC-DC converters, Video Processing
◾ Plasma Display Panel (PDP)
◾ Networking and Telecommunications Equipment