Vishay Siliconix

SiP4282

Document Number: 65740

S10-0671-Rev. E, 29-Mar-10

www.vishay.com

1

1.2 A Slew Rate Controlled Load Switch in PPAK SC75-6,

and TDFN4 1.2 mm x 1.6 mm

FEATURES

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1.8 V to 5.5 V input voltage range for SiP4282

•

1.5 V to 5.5 V input voltage range for

SiP4282A

•

175 m

Ω at 3 V

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Slew rate controlled turn-on time options: 100 µs, and

1 ms

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Fast shutdown load discharge

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Low quiescent current, 4 µA for SiP4282

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Low quiescent current, 1 µA for SiP4282A

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Low shutdown current < 1 µA

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UVLO of 1.4 V for SiP4282

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PowerPAK SC-75 1.6 mm x 1.6 mm and TDFN4 1.2 mm

x 1.6 mm packages

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Compliant to RoHS directive 2002/95/EC

APPLICATIONS

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Cellular telephones

•

Digital still cameras

•

Personal digital assistants (PDA)

•

Hot swap supplies

•

Notebook computers

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Personal communication devices

•

Portable Instruments

DESCRIPTION

The SiP4282 series is a slew rate controlled high side switch.

The switch is of a low ON resistance P-Channel MOSFET

that supports continuous current up to 1.2 A.

The SiP4282 series operates with an input voltage from

1.8 V to 5.5 V. It offers under voltage lock out that turns the

switch off when an input under voltage condition exists. The

"A" option without UVLO extends the minimum operation

voltage from 1.8 V down to 1.5 V. The SiP4282 is available in

two different versions of slew rates, 100 µs and 1 ms. The

SiP4282 series integrates load discharge circuit to ensure

the discharge of capacitive load when the switch is disabled.

The SiP4282 features low input logic level to interface with

low control voltage from microprocessors. This device has a

very low operating current (typically 2.5 µA for SiP4282 and

50 pA for SiP4282A).

The SiP4282 is available in lead (Pb)-free package options

including 6 pin PPAK SC75-6, and 4 pin TDFN4 1.2 mm x

1.6 mm DFN4 packages. The operation temperature range

is specified from - 40 °C to + 85 °C.

The SiP4282 compact package options, operation voltage

range, and low operating current make it a good fit for battery

power applications.

TYPICAL APPLICATION CIRCUIT

Figure 1 - SiP4282 Typical Application Circuit

SiP4282

IN

OUT

GND

GND

GND

ON/OFF

ON/OFF

C

1 µF

IN

C

0.1 µF

OUT