RT9728A

更新时间： 2024-09-15 12:23:39

品牌	Logo	应用领域
立锜 - RICHTEK		开关电源开关
页数	文件大小	规格书
13页	222K
描述
120mÎ©, 1.3A Power Switch with Programmable Current Limit

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技术参数
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RT9728A 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：	SOT-26;WDFN2x2-6

RT9728A 数据手册

RT9728A

120mΩ, 1.3A Power Switch with Programmable Current Limit

General Description

Features

10% Current Limit Accuracy @ 1.3A

The RT9728A 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 RT9728A 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. In

addition, 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 RT9728A 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

SOT-23-6 and WDFN-6L 2x2 packages.

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

^zMeets USB Current Limiting Requirements

^zOperating Voltage Range : 2.5V to 5.5V

^zReverse Input−Output Voltage Protection

^zBuilt-in Soft-Start

^z120mΩ High Side MOSFET

^z120μA Supply Current

^zRoHS Compliant and Halogen Free

Applications

z USB Bus/Self Powered Hubs

z USB Peripheral Ports

z ACPI PowerDistribution

z Battery Power Equipment

z 3G/3.5GData Card, Set-Top Boxes

Pin Configurations

Ordering Information

RT9728A

(TOP VIEW)

Package Type

E : SOT-23-6

ILIM

VOUT

FAULT

QW : WDFN-6L 2x2

Lead Plating System

G : Green (Halogen Free and Pb Free)

Z : ECO (Ecological Element with

Halogen Free and Pb free)

EN/EN

VIN GND

SOT-23-6

H : Chip Enable High

L : Chip Enable Low

Note :

VOUT

ILIM

VIN

Richtek products are :

GND

EN/EN

FAULT

` 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-6L 2x2

is a registered trademark of Richtek Technology Corporation.

DS9728A-03 July 2012

www.richtek.com

12 3 4 5 6 7...13

中文翻译

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与RT9728A相关器件

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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
RT9736A	RICHTEK	获取价格	Dual Channel, Low Resistance Load Switch

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