MaxLinear XRP7740

Description

The XRP7708 and XRP7740 are quad-output pulse-width modulated(PWM) step-down DC DC controller swith a built-inLDO for stand by power and GPIOs. The devices provide a complete power management solution in one IC and are fully programmable via an I2C serial interface. Independent Digital Pulse Width Modulator(DPWM) channels regulate output voltages and provide all required protection functionssuch ascurrentlimiting and over voltage protection.Each output voltage can be programmed from0.9Vto5.1V without the need of an external voltage divider. The wide range of the programmable DPWM switching frequency (from 300 KHzto1.5 MHz) enables the user to optimize between efficiency and component size. Input voltage range is from 6.5V to 20V.An I2C bus interface is provided to program the IC as well as to communicate withthe host for fault reporting and handling,powerrailparameters monitoring,etc.The device off ersacomplete solution for soft start and soft-stop. The start-up delay and ramp of each PWM regulator can be independently controlled. The device can start up a pre-biased PWM channel without causinglarge negative inductor current

Features

• 4 Channel Step Down Controller3ohm/1.8ohm driver–XRP77405ohm/1.8ohm driver–XRP7708Programmable utput Voltage 0.9V-5.1VProgrammable 1.5MHz PWM Frequency
• 6.5V-20V Single Input Voltage Range
• Up to 6 Reconfigurable GPIO Pins
• Fully Programmable via I2C Interface
• Independent Digital Pulse WidthModulator (DPWM) channels
• Complete Monitoring and Reporting
• Complete Power Up/Down Sequencing
• Full On Board ProtectionOTP, UVLO, OCP and OVP
• Built-in 3.3V/5V LDO
• PowerArchitect™ Design Software
• Green/Halogen Free 40-pin TQFN

Typical applications

• Audio-Video Equipment
• Industrial & Telecom Equipment
• Multi Channel Programmable Power Supplies
• Processors & DSPs Based Equipment

More information

• Datasheet
• IC product information