SW

C1

10 µF

L1

6.8 µH

R1

R2

VBAT

VOUT

FB

C2

2.2 µF

C3

220 µF

LBO

PGND

LBI

SYNC

EN

GND

TPS6103x

e.g. 5 V up to

1000 mA

Low Battery

Comparator

Output

R3

R4

R6

1.8 V to 5 V

Input

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TPS61030, TPS61031, TPS61032

SLUS534G – SEPTEMBER 2002 – REVISED MARCH 2015

TPS6103x 96% Efficient Synchronous Boost Converter With 4A Switch

1 Features

3 Description

The TPS6103x devices provide a power supply

1

•

96% Efficient Synchronous Boost Converter With

solution for products powered by either a one-cell Li-

1000-mA Output Current

Ion or Li-polymer, or a two to three-cell alkaline, NiCd

From 1.8-V Input

or NiMH battery. The converter generates a stable

•

Device Quiescent Current: 20-µA (Typ)

output voltage that is either adjusted by an external

resistor divider or fixed internally on the chip. It

•

Input Voltage Range: 1.8-V to 5.5-V

provides high efficient power conversion and is

•

Fixed and Adjustable Output Voltage Options Up

capable of delivering output currents up to 1 A at 5 V

to 5.5-V

at a supply voltage down to 1.8 V. The implemented

•

Power Save Mode for Improved Efficiency at Low

boost converter is based on a fixed frequency, pulse-

Output Power

width-

modulation

(PWM)

controller

using

a

synchronous rectifier to obtain maximum efficiency.

•

Low Battery Comparator

At low load currents the converter enters Power Save

•

Low EMI-Converter (Integrated Antiringing Switch)

mode to maintain a high efficiency over a wide load

•

Load Disconnect During Shutdown

current range. The Power Save mode can be

•

Over-Temperature Protection

disabled, forcing the converter to operate at a fixed

switching frequency. It can also operate synchronized

•

Available in a Small 4 mm x 4 mm QFN-16 or in a

to an external clock signal that is applied to the

TSSOP-16 Package

SYNC pin. The maximum peak current in the boost

switch is limited to a value of 4500 mA.

2 Applications

The converter can be disabled to minimize battery

All Single Cell Li or Dual Cell Battery Operated

drain. During shutdown, the load is completely

Products as MP-3 Player, PDAs, and Other

disconnected from the battery. A low-EMI mode is

Portable Equipment

implemented to reduce ringing and, in effect, lower

radiated electromagnetic energy when the converter

enters the discontinuous conduction mode.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS61030

TPS61031

TSSOP (16)

5.00 mm × 4.40 mm

TPS61032

TPS61030

TPS61031

QFN (16)

4.00 mm x 4.00 mm

TPS61032

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

the end of the datasheet.

4 Simplified Schematic

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.