40

45

50

55

60

65

70

75

80

85

90

95

100

0.010

0.100

1

10

100

1000

IL −Load Current − mA

VO = 1.8 V

VI = 2.7 V

VI = 3.7 V

VI = 5 V

VI

GND

EN

SW

FB

C1

4.7 mF

L1

10 mH

C2

10 mF

TPS62202

VI

2.5 V − 6 V

VO

1.8 V / 300 mA

1

5

2

3

4

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

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Community

TPS62200, TPS62201, TPS62202, TPS62203

TPS62204, TPS62205, TPS62207, TPS62208

SLVS417F – MARCH 2002 – REVISED JUNE 2015

TPS6220x High-Efficiency, SOT23 Step-Down, DC-DC Converter

1 Features

3 Description

The TPS6220x devices are a family of high-efficiency

1

•

High-Efficiency Synchronous Step-Down

synchronous step-down converters ideally suited for

Converter With up to 95% Efficiency

portable systems powered by 1-cell Li-Ion or 3-cell

•

2.5-V to 6-V Input Voltage Range

NiMH/NiCd batteries. The devices are also suitable to

•

Adjustable Output Voltage Range From 0.7 V to VI

operate from a standard 3.3-V or 5-V voltage rail.

•

Fixed Output Voltage Options Available

With an output voltage range of 6 V down to 0.7 V

•

Up to 300-mA Output Current

and up to 300 mA output current, the devices are

ideal to power low voltage DSPs and processors

•

1-MHz Fixed-Frequency PWM Operation

used in PDAs, pocket PCs, and smart phones. Under

•

Highest Efficiency Over Wide Load Current Range

nominal load current, the devices operate with a fixed

Due to Power Save Mode

switching frequency of typically 1 MHz. At light load

•

15-µA Typical Quiescent Current

currents, the part enters the power save mode

operation; the switching frequency is reduced and the

•

Soft Start

quiescent current is typically only 15 µA; therefore, it

•

100% Duty Cycle Low-Dropout Operation

achieves the highest efficiency over the entire load

•

Dynamic Output-Voltage Positioning

current range. The TPS6220x needs only three small

external components. Together with the SOT23

•

Available in a 5-Pin SOT23 Package

package,

a

minimum

system

solution

size

is

achieved. An advanced fast response voltage mode

2 Applications

control scheme achieves superior line and load

•

PDAs and Pocket PCs

regulation with small ceramic input and output

capacitors.

•

Cellular Phones and Smart Phones

•

Low Power DSP Supplies

Device Information(1)

•

Digital Cameras

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Portable Media Players

TPS6220x

SOT-23 (5)

2.90 mm × 1.60 mm

•

Portable Equipment

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

the end of the data sheet.

Typical Application Schematic

Efficiency vs Load Current

(Fixed Output Voltage Version)

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.