0

1

2

3

4

5

6

7

8

0.8

1

1.2

1.4

1.6

1.8

2

2.2

2.4

2.6

2.8

3

V

-40

SC

25

SC

85

SC

C007

Power

Supply

OFF

ON

TPS22961

VIN

VOUT

C

L

ON

C

IN

VBIAS

(4.5V to 5.5V)

GND

Processor

(x86, FPGA,

DSP)

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TPS22961

SLVSCI4B – FEBRUARY 2014 – REVISED SEPTEMBER 2014

TPS22961 3.5-V, 6-A, Ultra-low Resistance Load Switch

1 Features

3 Description

1

•

Integrated Single Channel Load Switch

channel load switch with controlled turn on. The

•

VBIAS Voltage Range: 3 V to 5.5 V

device contains an N-channel MOSFET that can

•

Input Voltage Range: 0.8 V to 3.5 V

operate over an input voltage range of 0.8 V to 3.5 V

and supports a maximum continuous current of 6 A.

•

–

capability of the device makes it ideal for driving

•

6A Maximum Continuous Switch Current

processor

rails

with

very

tight

voltage

dropout

•

Low Quiescent Current < 1 µA (max)

tolerances. Quick rise time of the device allows for

•

Low Control Input Threshold Enables use of 1.2-

power rails to come up quickly when the device is

V/1.8-V/2.5-V/3.3-V Logic

enabled, thereby reducing response time for power

distribution.

The

switch

can

be

independently

•

Controlled Slew Rate

controlled via the ON terminal, which is capable of

–

interfacing directly with low-voltage control signals

•

Quick Output Discharge (QOD)

originating

from

microcontrollers

or

low

voltage

discrete logic. The device further reduces the total

•

SON 8-terminal Package with Thermal Pad

solution size by integrating a 260

Ω pull-down

•

ESD Performance Tested per JESD 22

transistor for quick output discharge (QOD) when the

–

2-kV HBM and 1-kV CDM

switch is turned off.

The TPS22961 is available in a small, space-saving 3

2 Applications

mm x 3 mm 8-SON package (DNY) with integrated

•

Ultrabook™/Notebooks

thermal pad allowing for high power dissipation. The

device is characterized for operation over the free-air

•

Desktops

temperature range of –40°C to 85°C.

•

Servers

•

Set-top Boxes

Device Information(1)

•

Telecom Systems

PART NUMBER

PACKAGE

BODY SIZE

•

Tablet PC

TPS22961

WSON (8)

3.00 mm x 3.00 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

4 Simplified Schematic

Typical Application: driving high current

core rails for a processor

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.