Vishay Siliconix

SiP32408, SiP32409

Document Number: 63717

S13-0971-Rev. F, 06-May-13

www.vishay.com

1

This document is subject to change without notice.

1.1 V to 5.5 V, Slew Rate Controlled Load Switch

DESCRIPTION

SiP32408 and SiP32409 are slew rate controlled load

switches designed for 1.1 V to 5.5 V operation.

These devices guarantee low switch on-resistance at 1.2 V

input. They feature a controlled soft-on slew rate of typical

2.5 ms that limits the inrush current for designs of heavy

capacitive load and minimizes the resulting voltage droop at

the power rails.

SiP32408 and SiP32409 feature a low voltage control logic

interface (On/Off interface) that can interface with low voltage

control signals without extra level shifting circuit.

Both SiP32408 and SiP32409 have exceptionally low

shutdown current and provide reverse blocking to prevent

high current flowing into the power source.

SiP32409 integrates a output discharge circuit for fast turn

off.

Both SiP32408 and SiP32409 are available in TDFN4

package of 1.2 mm by 1.6 mm.

FEATURES

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1.1 V to 5.5 V operation voltage range

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42 m

 typical from 1.5 V to 5 V

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Slew rate controlled turn-on: 2.5 ms at 3.6 V

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Low quiescent current < 1 µA when disabled

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Reverse current blocking when switch is off

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Output discharge (SiP32409)

APPLICATIONS

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PDAs/smart phones

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Notebook/netbook computers

•Tablet PC

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Portable media players

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Digital camera

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GPS navigation devices

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Data storage devices

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Optical, industrial, medical, and healthcare devices

TYPICAL APPLICATION CIRCUIT

Figure 1 - SiP32408, SiP32409 Typical Application Circuit

SiP32408, SiP32409

IN

OUT

GND

GND

GND

EN

EN

C

4.7 µF

IN

C

0.1 µF

OUT