Datasheet > RT9728

RT9728

更新时间： 2024-09-15 20:05:11

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
11页	156K
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RT9728 技术参数

Status：	Active	Number of Outputs：	1
Vin (min) (V)：	2.5	Vin (max) (V)：	5.5
Ron (typ) (mOhm)：	120	Iq (typ) (mA)：	0.12
Current Limit (typ) (A)：	1.3	FLAG Indicator：	Yes
Iocp Adjustable：	Yes	Safety：
Features：	Adjustable Current Limit;Cycle-by-Cycle Current Limit;Enable Input;SCP	Package Type：	WDFN2x2-6

RT9728 数据手册

RT9728

120mΩ, 1.3A Power Switch with Programmable Current Limit

General Description

Features



10% Current Limit Accuracy @ 1.3A

The RT9728 is a cost effective, low voltage, single

P-MOSFET high side power switch IC for USB application

with a programmable current limit feature. Low switch-on

resistance (typ.120mΩ) and low supply current (typ.

120μA) are realized in this IC. The RT9728 can offer a

programmable current limit threshold between 75mAand

1.3A(typ.) via an external resistor. The 10% current limit

accuracy can be realized for all current limit settings.

Besides, a flag output is available to indicate fault

conditions to the local USB controller. Furthermore, the

chip also integrates an embedded delay function to prevent

mis-operation from happening due to high inrush current.

The RT9728 is an ideal solution for USB power supply

and can support flexible applications since it is functional

for various current limit requirements. It is available in

WDFN-6L 2x2 package.

^Adjustable Current Limit : 75mA to 1.3A (typ.)

^Meets USB Current Limiting Requirements

^Operating Voltage Range : 2.5V to 5.5V

^Reverse Input − Output Voltage Protection

^Built-in Soft-Start

^120mΩ High Side MOSFET

^120μA Supply Current

^RoHS Compliant and Halogen Free

Applications

 USB Bus/Self Powered Hubs

 USB Peripheral Ports

 ACPI PowerDistribution

 Battery Power Equipment

 3G/3.5GData Card, Set-Top Boxes

Ordering Information

RT9728

Pin Configuration

(TOP VIEW)

Pin 1 Orientation***

(2) : Quadrant 2, Follow EIA-481-D

(For RT9728GQW Only)

VOUT

ILIM

VIN

GND

FAULT

Package Type

QW : WDFN-6L 2x2 (W-Type)

WDFN-6L 2x2

Lead Plating System

G : Green (Halogen Free and Pb Free)

Z : ECO (Ecological Element with

Halogen Free and Pb free)

Marking Information

RT9728GQW

J0 : Product Code

Note :

W : Date code

J0W

***Empty means Pin1 orientation is Quadrant 1

Richtek products are :

 RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

RT9728ZQW

J0 : Product Code

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

W : Date Code

J0W

is a registered trademark of Richtek Technology Corporation.

DS9728-07 March 2018

www.richtek.com

12 3 4 5 6 7...11

中文翻译

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与RT9728相关器件

型号	品牌	获取价格	描述	数据表
RT9728A	RICHTEK	获取价格	120mÎ©, 1.3A Power Switch with Programmable C
RT9728B	RICHTEK	获取价格	暂无描述
RT9728BHGE	RICHTEK	获取价格	Power Switch with Adjustable Current Limit
RT9728BLGQW	RICHTEK	获取价格	Power Switch with Adjustable Current Limit
RT9728C	RICHTEK	获取价格	暂无描述
RT9728CHGE	RICHTEK	获取价格	Power Switch with Programmable Current Limit
RT9728CHGQW	RICHTEK	获取价格	Power Switch with Programmable Current Limit
RT9730	RICHTEK	获取价格	Charging System Safety Device
RT9731A	RICHTEK	获取价格	Dual Channel Precision Adjustable Current Limited Power Switch
RT9731B	RICHTEK	获取价格	暂无描述

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