Datasheet > RT8109

RT8109

更新时间： 2024-02-07 09:08:21

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
14页	259K
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中文翻译

获取价格

技术参数
数据手册

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RT8109 技术参数

Status：	Active	Vs (typ) (V)：	12
Vin (min) (V)：	3.3	Vin (max) (V)：	12
Vout (min) (V)：	0.6	Vout (max) (V)：	5
Preset Vout (V)：		Output Adj. Method：	Resistor
Accuracy (+/- %)：	1	Freq (typ) (kHz)：	300
Freq (min) (kHz)：	250	Freq (max) (kHz)：	350
Iq (typ) (mA)：	2.5	Features：	Built-in Bootstrap Switch;Force PWM;OCP;OVP;Power Good;SCP;UVP;Voltage Mode Control
Package Type：	WDFN3x3-10

RT8109 数据手册

RT8109

5V to 12V Single Synchronous Buck PWM Controller with

Reference Input

General Description

Features

z Single IC Supply Voltage ( 5V to 12V).

The RT8109 is a single-phase synchronous buck PWM

DC-DC controller designed to drive two N-MOSFETs. It

provides a highly accurate, programmable output voltage

precisely regulated to low voltage requirement with an

internal 0.6V 1% reference.

z Drive Two N-MOSFETs

z Fixed Operating Frequency at 300kHz

z Voltage Mode PWM Control with External

Feedback Loop Compensation

z Over Current Protection by Sensing MOSFET R_DS(ON)

z Dual Mode Regulation Control

` Standalone Mode (FB regulating to close to

internal reference 0.6V)

The RT8109 uses a single feedback loop voltage mode

PWM control for fast transient response. The high driving

capability makes it suitable for large output current

applications. An oscillator with fixed frequency 300kHz

reduces the component size of the external inductor and

capacitor for saving PCB board area and cost.

`Tracking Mode (FB following PI input)

z Power Good Indication

z On/Off Control

The RT8109 supports both tracking and stand-alone loop

control modes. Standalone mode is simple and tracking

mode provides better flexibility. The RT8109 also integrates

complete protection functions such as OCP, OVP, UVP

into WDFN-10L 3x3 package.

z Full 0 to 90% Duty Cycle

z RoHS Compliant and Halgen Free

Applications

z Mother Boards andDesktop Servers

z Graphic Cards

Ordering Information

RT8109

z Switching Power Supply

z GenericDC/DC Power Regulator

Package Type

QW : WDFN-10L 3x3 (W-Type)

Pin Configurations

Lead Plating System

G : Green (Halogen Free and Pb Free)

(TOP VIEW)

BOOT

UGATE

PHASE

Note :

PGOOD

COMP/SD

VCC

Richtek products are :

GND

LGATE/OCSET

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

` Suitable for use in SnPb or Pb-free soldering processes.

WDFN-10L 3x3

Marking Information

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

DS8109-02 April 2011

www.richtek.com

12 3 4 5 6 7...14

中文翻译

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与RT8109相关器件

型号	品牌	获取价格	描述	数据表
RT8110	RICHTEK	获取价格	暂无描述
RT8110A	RICHTEK	获取价格	暂无描述
RT8110B	RICHTEK	获取价格	暂无描述
RT8110BGJ8	RICHTEK	获取价格	IC REG CTRLR BUCK TSOT23-8
RT8110C	RICHTEK	获取价格	Compact Wide Input Range Synchronous Buck DC/DC PWM Controller
RT8113	RICHTEK	获取价格	Single Phase VR11.1 PWM Controller with 7-bit VID
RT8115A	RICHTEK	获取价格	暂无描述
RT8115C	RICHTEK	获取价格	12V Green Voltage Mode High Efficiency Synchronous Buck PWM Controller
RT8120	RICHTEK	获取价格	Single-Phase Synchronous Buck PWM Controller
RT8120_V01	RICHTEK	获取价格	Single-Phase Synchronous Buck PWM Controller

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