TPS22934

VIN

VOUT

RL1

CL1

GND

ON

GND

CIN1

RL2

CL2

GND

LOAD 1

LOAD 2

VREG=1.8V

CIN2

VREG=2.8V

GND

GND

Li-ion

Battery

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TPS22934

SLVSAD4B – AUGUST 2010 – REVISED APRIL 2015

Ultra-Small, Low-Input-Voltage, Low rON Load Switch

With Hysteresis Control Input

1 Features

3 Description

The TPS22934 is a small, low ON-resistance (rON)

1

•

Integrated Single Channel Load Switch

load switch with controlled turnon. The devices

•

Input Voltage: 1.5 V to 3.6 V

contain a P-channel MOSFETs that can operate over

•

ON-Resistance

an input voltage range of 1.5 V to 3.6 V.

–

rDS(ON) = 63 mΩ at VIN = 3.6 V

The switch is controlled by an ON/OFF input (ON),

–

rDS(ON) = 69 mΩ at VIN = 2.5 V

which has built-in hysteresis (VTH+(typ) = 2.35 V)

allowing an easy use of TPS22934 in power-rail

–

rDS(ON) = 78 mΩ at VIN = 1.8 V

sequencing applications.

–

rDS(ON) = 87 mΩ at VIN = 1.5 V

In the TPS22934 a 35-

Ω on-chip load resistor is

•

1-A Maximum Continuous Switch Current

added for output quick discharge when switch is

•

Integrated Hysteresis Enable Input (ON Pin)

turned off.

Allows Easy Power-Rail Sequencing

In the TPS22934, the rise time of the device is

•

Controlled Slew Rate Option: 26 µs at 3.6 V

internally controlled to avoid inrush current. The

•

Quick Output Discharge Transistor

TPS22934 features a typical rise time of 26 µs with a

3.6-V input.

•

Ultra-Small CSP-4 Package

•

ESD Performance Tested Per JESD 22

The the TPS22934 is available in an ultra-small

space-saving

4-pin

CSP

package

and

is

–

3000-V Human-Body Model

characterized

for

operation

over

the

free-air

(A114-B, Class II)

temperature range of –40ºC to 85ºC.

–

1000-V Charged-Device Model (C101)

Device Information(1)

2 Applications

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Battery-Powered Equipment

TPS22934

DSBGA (4)

0.90 mm × 0.90 mm

•

Portable Industrial Equipment

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

the end of the data sheet.

•

Portable Medical Equipment

•

Portable Media Players

•

Point-of-Sales Terminals

•

GPS Devices

•

Digital Cameras

•

Portable Instrumentation

•

Smart Phones

Typical Application

1.8-V Power-Rail Sequencing

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.