MaxLinear XRP7724

Description

TheXRP7724 isaquadchannelDigitalPulse Width Modulated (DPWM) Step down (buck) controller. A wide 4.75V to 5.5V and 5.5V to 25 Vin put voltage dual range allows for single supply operation from standard powerrails.With integrate dFET gate drivers,two LDOs for standby power and a 105kHz to 1.23MHz independent channel to channel programmable constant operating frequency,the XRP7724 reduces overall component count and solution foot print and optimizes conversion efficiencies.A selectable digitalPulse Frequency Mode (DPFM) capable of better than 80% efficiency at light current load and low operating current allow for portable and Energy Star compliant applications. Each XRP7724 output channelis individually programmable as low as 0.6V with a resolution as fine as 2.5mV, and configurable for precise soft start and soft stops equencing,including delay and ramp control.The XRP7724 operations are fully controlled via aSMBus-compliantI2C interface allowing for advanced local and/or remote reconfiguration ,full performance monitoring and reporting as well as faulthandling.Built-in independent output overvoltage,over temperature,over-current and under voltage lockout protections insure safe operation under abnormal operating conditions.TheXRP7724 is offered in a RoHS compliant, halogen free44pinTQFNpackage

Features

• Quad Channel Step-down ControllerDigital PWM 105kHz-1.23MHz OperationsIndividual Channel Frequency SelectionPatented Digital PFM with Ultrasonic modePatented Over Sampling FeedbackIntegrated MOSFET DriversProgrammable 5 coefficient PID control
• 4.75V to 25V Input Voltage4.75V-5.5 and5.5V-25VInputRanges0.6Vto5.5VOutputvoltage
• SMBus Compliant - I2C InterfaceFullPower Monitoring and Reporting
• 3 x 15V Capable PSIO + 2 x GPIOs
• Full Start/Stop Sequencing Support
• Built-in Thermal, Over-Current, UVLOand Output Over-Voltage Protections
• On Board 5V and 3.3V Standby LDOs
• On Board Non-volatile Memory
• Supported by PowerArchitect

Typical applications

• Video Surveillance Systems
• Servers
• Industrial Control Systems
• Switches/Routers
• Automatic Test Equipment
• Broadcast Equipment
• Base Stations

More information

• Datasheet
• IC product information