DIO70040LFST5 datasheet(1/18 Pages) DIOO

部件名	DIO70040LFST5

功能描述	5.5 V Low Loss Power Distribution Switch

PDF	18 Pages

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制造商	DIOO [DIOO MICROCIRCUITS CO., LTD]

网页	https://www.dioo.com/#/

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1 / 18 page

DIO70040

Version 1.3, Aug 2025

www.dioo.com

I

5.5 V Low Loss Power Distribution Switch



Features



Input voltage: 2.7 V to 5.5 V



Typical 57 mΩ on-resistance



Undervoltage lockout



Overcurrent protection, short circuit protection

and over temperature protection



Fault time 8 ms (typ) with blanking



Reverse blocking (no body diode)



No reverse current when power ON or power

OFF



Enable polarity: active high or active low



Quick output discharge

−

DIO70040H: available, EN high

−

DIO70040NH: not available, EN high

−

DIO70040L: available, EN low

−

DIO70040NL: not available, EN low



Applications



USB ports / hubs



Digital TV



Set-top boxes



VOIP phones



Package Information

Part Number

Package

Body Size

DIO70040

SOT23-5

2.93 mm × 1.63 mm

SOIC-8

4.90 mm × 3.90 mm

EP-MSOP8 3.00 mm × 3.00 mm

MSOP-8

3.00 mm × 3.00 mm



Description

The DIO70040 power distribution switch is intended

for applications where precision current limiting is

required or heavy capacitive loads and short circuits

are encountered. The power switch rising and falling

times are controlled to minimize current surges

during turning on / off.

The DIO70040 provides 3 A current limit.

The DIO70040 device limits the output current under

a safe level by using a constant current mode when

the output load exceeds the current limit threshold.

The DIO70040 is available in the SOT23-5, SOIC-8,

EP-MSOP8 and MSOP-8 packages. It is rated over

the -40°C to 85°C temperature range.



Simplified Schematic

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