60

70

80

90

100

0.001

0.010

0.100

1.000

Iout (A)

Vin = 3.0 V

Vin = 3.6 V

Vin = 4.2 V

C008

Vout = 5.0 V

TPS61230

V

IN

VOUT

FB

VIN

GND

EN

SW

PG

C2

3x22µF

V

OUT

L1

1.0µH

C1

22µF

HYS

SS

C3

10nF

R1

402k

R2

100k

R3

1.0Meg

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TPS61230, TPS61231, TPS61232

SLVSAQ2C – JANUARY 2014 – REVISED OCTOBER 2014

TPS6123x High Efficiency Synchronous Step Up Converters with 5-A Switches

1 Features

3 Description

The TPS6123x device family is a high efficiency

1

•

Input Voltage Range: 2.3 V to 5.5 V

synchronous step up converter with compact solution

•

Output Voltage Range: 2.5 V to 5.5 V

size. It is optimized for products powered by a one-

•

Up to 96% Efficiency Synchronous Boost

cell Li-Ion battery, or a regulated power rail of 3.3 V.

Converter

The IC integrates a 5-A switch and is capable of

delivering output currents up to 2.1 A at a 5-V output

•

3.3-V to 5-V Power Conversion with 2.1-A Output

with a 3.3-V input supply. The device is based on a

Current

quasi-constant on-time valley current mode control

•

Input Supply Voltage Supervisor with Adjustable

scheme. The typical operating frequency is 2 MHz,

Threshold/Hysteresis

which

allows

the

use

of

small

inductors

and

•

Power Save Mode for Light Load Efficiency

capacitors to achieve a small solution size. The

TPS61230 and TPS61231 provide an adjustable

•

Load Disconnect During Shutdown

output voltage via an external resistor divider, and the

•

Output Over Voltage Protection

TPS61232 provides a fixed output voltage of 5 V.

•

Programmable Soft Start

During light loads, the TPS6123x automatically enters

•

Power Good Output

power save mode for maximum efficiency at lowest

•

2-MHz Switching Frequency

quiescent

currents.

In

shutdown,

the

load

is

completely disconnected from the input, and the input

•

Output Capacitor Discharge (TPS61231)

current consumption is reduced to 1.5 µA typical. The

•

3 mm x 3 mm x 0.9 mm VSON Package

device

integrates

a

precise

low

power

EN

comparator. The EN threshold as well as the

2 Applications

hysteresis of the enable comparator are adjustable

with

external

resistors

and

support

application

•

Low Voltage Li-Ion Battery Powered Products

specific system power up and down requirements.

•

USB Power Supply

Other features like output over voltage protection,

•

Tablet PCs

thermal shutdown protection, and a power good

output are built-in.

•

Power Banks, Battery Backup Units

•

Industrial Metering Equipments

The devices are available in a 3 mm x 3 mm x 0.9

mm VSON package.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS61230

TPS61231(2)

VSON (10)

3.00 mm x 3.00 mm

TPS61232

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

the end of the datasheet.

(2) Preview product. Contact TI factory for more information

TPS61230 Typical Application

TPS61230 Typical Application Efficiency

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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.