Datasheet > LS0504EDD12

LS0504EDD12

更新时间： 2024-11-06 14:56:19

品牌	Logo	应用领域
力特 - LITTELFUSE		开关
页数	文件大小	规格书
8页	1179K
描述
LS0504EDD12是具有受控压摆率的紧凑型低RON负载开关。该器件的输入电压范围为1.8V至5.5V，最大连续电流为4A。受控输出压摆率大大降低了对大容量负载电容充电时的启动突入电流，从

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LS0504EDD12 数据手册

Protection IC Datasheet

LS0504EDD12

5.5V 4A Low-Ron Power Distribution Load Switch

RoHS

Description

The LS0504EDD12 is a compact, low R_ONload switch with

controlled slew rate. The device operates over an input voltage

range of 1.8V to 5.5V and can support maximum continuous

current of 4A.

The controlled output slew rate greatly reduces inrush current at

start-up when charging large bulk load capacitances, thereby

minimizes input supply voltage droop. LS0504E comes with built-

in full protections against over current, over voltage and over

temperature. It provides an accurate enable threshold which allows

users to program input under-voltage lockout (UVLO) threshold

through external resistor divider network. It has built-in 8Ω resistor

for quick output discharge at disable.

Features

■ Wide Input Range from 1.8V

Pinout Designation

■ 250µs internal Soft-start for

to 5.5V

5V output

■ Low R_ONat 26mΩ

■ Accurate 1.2V Enable

Threshold

■ Up to 4A continuous current

GND

OUT

■ Quick Output Discharge in

Shutdown

■ Built-in Over-Voltage,

Over-Current and Over

Temperature Fault

Protections

Applications

Pin Description

■ Solid-state Drives

■ Portable Media Players

■ Smartphones andTablets

■ Wearable IOT Devices

Pin #

Description

Name

■ Portable Medical

Equipment

GND

Ground pin.

Enable pin. EN has accurate 1.20V ON threshold.

Pull EN pin above ON threshold enables the

LS0504E. Pull EN pin below 0.4V disables the

LS0504EDD12.

Input pin. Connect a 10µF or greater ceramic

capacitor from IN to GND close to the IC

Output pin. Connect a 10µF or greater ceramic

capacitor from OUT to GND close to the IC

Typical Applications

V_IN: 1.8V~5.5V

V_OUT

OUT

*Optional

220μF

R_EN1

10K

C_IN

C_O

10μF

TVS

Diode

LS0504E

GND

Functional Block Diagram

R_EN2

C_EN

0.1μF

OUT

GND

8Ω

Charge

Pump

OVP

UVLO

Discharge

Control

*USB Port Connection

When the input of LS0504E is connected to a USB port, recommend to add either a 6V Rating TVS diode

or a 220μF Aluminum Cap to absorb input surge current during USB cable hot plug-in.

Driver

Thermal

Detect

Current

Limit

Speciﬁcations are subject to change without notice.

Revised: FW.12/01/22

12 3 4 5 6 7 8

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