XR76108ELTR-F 开关稳压器

XR76108ELTR-F

开关稳压器 PowerBlox 8A and 12A Synchronous Step Down COT Regulator

General Description

The XR76108ELTR-F XR76108 and XR76112 are synchronous step-down regulators combining the controller, drivers, bootstrap diode and MOSFETs in a single package for point-of-load supplies. The XR76108 has a load current rating of 8A and the XR76112 has a load current rating of 12A. A wide 4.5V to 22V input voltage range allows for single supply operation from industry standard 5V, 12V and 19.6V rails.

FEATURES XR76108ELTR-F

• 8A and 12A Capable Step Down

Regulators

− 4.5V to 5.5V Low VIN Operation

− 4.5V to 22V Wide Single Input

Voltage

− ≥0.6V Adjustable Output Voltage

• Controller, drivers, bootstrap diode and

MOSFETs integrated in one package

• Proprietary Constant On-Time Control

− No Loop Compensation Required

− Ceramic Output Cap. Stable operation

− Programmable 200ns-2μs On-Time

− Constant 200kHz-800kHz Freq.

− Selectable CCM or CCM/DCM

Operation

• Precision Enable and Power-Good Flag

• Programmable Soft-start

• 5x5mm 30-pin QFN Package

APPLICATIONS XR76108ELTR-F

• Distributed Power Architecture

• Point-of-Load Converters

• Power Supply Modules

• FPGA, DSP, and Processor Supplies

• Base Stations, Switches/Routers, and Servers