Datasheet > RT8125P

RT8125P

更新时间： 2024-04-09 19:01:30

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
24页	767K
描述
High Efficiency Single Synchronous Buck PWM Controller

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RT8125P 数据手册

RT8125P

High Efficiency Single Synchronous Buck PWM Controller

General Description

Features

⚫ Richtek Mach Response Technology

⚫ 1% High Accuracy 0.8VReference

⚫ VCC Input Range: 4.5V to 13.2V

⚫ VOUT Operating Range: 0.3V to 3.3V

⚫ Power Stage Input Range: 1.5V to 24V

⚫ Fixed Operating Frequency: 300kHz

⚫ LG_OCSET for CurrentLimit

The RT8125P PWM controller provides high efficiency,

excellent transient response, and high DC output

accuracy needed for CPU core, I/O, and chipset RAM

supplies in notebook computers.

Richtek Mach Response

technology is specifically

designed for providing 100ns “instant-on” response to

load transients while maintaining a relatively constant

switching frequency.

⚫ PGOOD Indicator

⚫ Embedded BootstrapSwitch

The RT8125P achieves high efficiency at a reduced

cost by eliminating the current sense resistor found in

traditional current mode PWMs. Efficiency is further

enhanced by its ability to drive very large synchronous

rectifier MOSFETs. The Buck conversion allows this

device to directly step down high voltage batteries at the

highest possible efficiency. The RT8125P provides an

1% high accuracy 0.8V reference voltage with minimum

1mA source/sink current for high accuracy output

application.

⚫ High-side Gate Driver Pull Low Resistor (10k)

⚫ Current Limit with Low-side Current Sense

Scheme

⚫ Enable Function with Internal Pull High Current

⚫ OVP/UVP/OTP/Pre-OVP/Current Limit

⚫ Shutdown Current 100A

Applications

⚫ GenericDC-DC Power Regulator

⚫ Mother Boards andDesktop Servers

Simplified Application Circuit

VCC

RT8125P

UGATE

EN_MODE

0V to 5V

PGOOD

BOOT

PGOOD

REFOUT

PHASE

LGATE/

OCSET

REFIN

GND

is a registered trademark of Richtek Technology Corporation.

DS8125P-00

November 2023

www.richtek.com

12 3 4 5 6 7...24

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