Datasheet > RT8125E

RT8125E

更新时间： 2024-09-23 21:11:39

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
17页	269K
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技术参数
数据手册

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RT8125E 技术参数

Status：	Active	Vs (typ) (V)：	12;5
Vin (min) (V)：	1.5	Vin (max) (V)：	24
Vout (min) (V)：	0.3	Vout (max) (V)：	3.3
Preset Vout (V)：		Output Adj. Method：	Ext Vref;Resistor
Accuracy (+/- %)：	1	Freq (typ) (kHz)：	300
Freq (min) (kHz)：	270	Freq (max) (kHz)：	330
Iq (typ) (mA)：	0.5	Features：	Force PWM;OCP;OVP;Power Good;UVP
Package Type：	WDFN3x3-10

RT8125E 数据手册

RT8125E

High Efficiency Single Synchronous Buck PWM Controller

General Description

Features

^Richtek Mach Response^TMTechnology

^1% High Accuracy 0.8V Reference

^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

^VIN Detection

The RT8125E PWM controller provides high efficiency,

excellent transient response, and highDC output accuracy

needed for CPU core, I/O, and chipset RAM supplies in

notebook computers.

Richtek Mach Response^TMtechnology is specifically

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

load transients while maintaining a relatively constant

switching frequency.

^LG_OCSET for Current Limit

^PGOOD Indicator

The RT8125E 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 RT8125E provides an 1% high

accuracy 0.8V reference voltage with minimum 1mA

source/sink current for high accuracy output application.

^Embedded Bootstrap Switch

^High Side Gate Driver Pull Low Resistor (10kΩ)

^Current Limit with Low Side Current Sense Scheme

 Enable Function with Internal Pull High Current

 OVP/UVP/OTP/Pre-OVP/Current Limit

 Shutdown Current <100μA

 RoHS Compliant and Halogen Free

Applications

 GenericDC/DC Power Regulator

Pin Configurations

 Mother Boards andDesktop Servers

(TOP VIEW)

BOOT

UGATE

PHASE

REFOUT

REFIN

PGOOD

LGATE/OCSET

VCC

WDFN-10L 3x3

Simplified Application Circuit

VCC

RT8125E

UGATE

Enable

BOOT

PGOOD

PHASE

OUT

LGATE/

OCSET

REFOUT

REFIN

GND

is a registered trademark of Richtek Technology Corporation.

DS8125E-00 July 2015

www.richtek.com

12 3 4 5 6 7...17

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与RT8125E相关器件

型号	品牌	获取价格	描述	数据表
RT8125F	RICHTEK	获取价格	暂无描述
RT8125G	RICHTEK	获取价格	暂无描述
RT8125H	RICHTEK	获取价格	High Efficiency Single Synchronous Buck PWM Controller
RT8125P	RICHTEK	获取价格	High Efficiency Single Synchronous Buck PWM Controller
RT8126A	RICHTEK	获取价格	暂无描述
RT8126B	RICHTEK	获取价格	暂无描述
RT8126C	RICHTEK	获取价格	High Efficiency Single Synchronous Buck PWM Controller
RT8127	RICHTEK	获取价格	暂无描述
RT8127A	RICHTEK	获取价格	暂无描述
RT8128A	RICHTEK	获取价格	暂无描述