Vishay Siliconix

SiP32451, SiP32452, SiP32453

Document Number: 63315

S12-2345-Rev. D, 8-Oct-12

www.vishay.com

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This document is subject to change without notice.

0.9 V to 2.5 V, 55 m

 Load Switch in WCSP4

DESCRIPTION

SiP32451, SiP32452 and SiP32453 are n-channel integrated

high side load switches that operate from 0.9 V to 2.5 V input

voltage range.

SiP32451, SiP32452 and SiP32453 have low input logic

control threshold that can interface with low voltage control

GPIO directly without extra level shift or driver. There is a pull

down at this EN logic control pin.

Turn on time is fast, less than 25 µs typically for input

voltage of 1.2 V or higher. SiP32451 and SiP32452 have

fast turn off delay time of less than 1 µs while SiP32453

features a guaranteed turn off delay of greater than 30 µs,

typically 90 µs.

SiP32451 features an output discharge for fast turn off.

SiP32451, SiP32452 and SiP32453 are available in compact

wafer level CSP package, WCSP4 0.8 mm x 0.8 mm with

0.4 mm pitch.

FEATURES

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Low input voltage, 0.9 V to 2.5 V

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Fast turn on time

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Low logic control with hysteresis

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Reverse current blocking when disabled

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Integrated pull down at EN pin

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Output discharge (SiP32451)

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4 bump WCSP 0.8 mm x 0.8 mm with 0.4 mm pitch

package

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Material categorization: For definitions of compliance

APPLICATIONS

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Battery operated devices

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Smart phones

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GPS and PMP

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Computer

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Medical and healthcare equipment

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Industrial and instrument

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Cellular phones and portable media players

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Game console

TYPICAL APPLICATION CIRCUIT

Figure 1 - SiP32451, SiP32452, and SiP32453 Typical Application Circuit

SiP32451, SiP32452, SiP32453

IN

OUT

GND

GND

GND

EN

EN