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XRP7720：Quad Output Universal Customizable PMIC with PFM
The XRP7720 is a quad output universal customizable PMIC comprised of a quad channel Digital Pulse Width Modulated (DPWM) Step down (buck) controller and 5V LDO. A wide 4.75V to 5.5V and 5.5V to 18V input voltage dual range allows for single supply operation from standard power rails. It is pin compatible to the popular XRP7724 and provides full flexibility during the development phase while offering a cost effective option for high volume production units.
With integrated FET gate drivers, it can operate from 105kHz to 1.23MHz with independent channel-to-channel programmable operating frequency, the XRP7720 reduces overall component count and solution footprint while optimizing conversion efficiencies. A selectable digital Pulse Frequency Mode (DPFM) and low operating current result in better than 80% efficiency down to 10mA load provides support for portable and Energy Star compliant applications. Each XRP7720 output channel is individually programmable down to a minimum 0.6V with a resolution of 2.5mV, and configurable for precise soft start and soft stop sequencing, including delay and ramp control.
During development, the XRP7720ILB-DEV is configured using PowerArchitectTM 5.1 (PA 5.1) through an I2C interface, allowing for short development of the power system and short time to market for the entire system. Once development is completed and volume production is ready to commence, Exar will assign a unique part suffix and deliver a customized XRP7720.
Built-in independent output over voltage, over temperature, over-current and under voltage lockout protections ensure safe operation under abnormal operating conditions.
The XRP7720 is offered in a RoHS compliant, “green”/halogen free 44-pin TQFN package.
技术特性
Pin Compatible to XRP7724
SMBus Compliant I2C Interface available on XRP7720ILB-DEV Only
SMBus Compliant I2C Interface available on XRP7720ILB-DEV Only
Supported by PowerArchitect™ 5.2
XRP7720ILB-DEV Only
XRP7720ILB-DEV Only
Quad Channel Step-down Controller
Individual Channel Frequency Selection
Patented digital PFM with Ultrasonic Mode
Integrated MOSFET Drivers
Programmable 5 coefficient PID control
Individual Channel Frequency Selection
Patented digital PFM with Ultrasonic Mode
Integrated MOSFET Drivers
Programmable 5 coefficient PID control
4.75V to 18V Input Voltage
4.75V-5.5 and 5.5V-18V Input Range
0.6V to 5.5V Output voltage
4.75V-5.5 and 5.5V-18V Input Range
0.6V to 5.5V Output voltage
3 x 15V Capable PSIOs + 2 x GPIOs
Full Start/Stop Sequencing Support
Built-in Thermal, Over-Current, UVLO and Output Over-Voltage Protections
On Board 5V Standby LDO
7x7mm TQFN44 Package
数据手册S
XRP7720 Datasheet
应用指南
ANP-32, Practical Layout Guidelines for PowerXR Designs
ANP-35, XRP77XX: Extending the MOSFET Gate Drive Conductors
ANP-38, XRP7724 I2C Command Set and Programming Guide
ANP-39, Loading XRP7724 RAM with Runtime Intel HEX File
ANP-43, XRP772X Current Measurement Application Note
说明书
XRP7720/7724/7725EVB-DEMO-1 Evaluation Board Manual
产品应用
Blade Servers
Micro Servers
Network Adapter Cards
Switches/Routers
Video Surveillance Systems
规格 参数
Vin Range 4.75V – 18V
Vout Range 0.6V – 5.5V
Gate Drive Pull Up/Down 4ohm / 2ohm
静态电流(µA) 4mA
Package Type TQFN44
Junction Temperature Range -40°C to 125°C
订购型号
器件型号 封装编码 状态
XRP7720EVB-DEMO-1 Board Active
XRP7720EVB-DEMO-1-KIT Kit Active
XRP7720ILB-DEV-F TQFN44 Active
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