50

30

10

0.01

0.1

1

10

60

70

100

100

1 k

80

20

0

40

90

SYNC = L

FB

PG

VIN

8

LBO

GND

SYNC

EN

LBI

PGND

TPS62052

SW

1

6

7

3

2

9

5

4

10

L1 = 10 µH

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TPS62050, TPS62051, TPS62052, TPS62054, TPS62056

SLVS432F – SEPTEMBER 2002 – REVISED JUNE 2015

TPS6205x 800-mA Synchronous Step-Down Converter

1 Features

3 Description

The TPS6205x devices are a family of high-efficiency

1

•

High-Efficiency Synchronous Step-Down

synchronous step-down DC-DC converters that are

Converter With up to 95% Efficiency

ideally suited for systems powered from a 1- or 2-cell

•

12-µA Quiescent Current (Typical)

Li-Ion battery or from a 3- to 5-cell NiCd, NiMH, or

•

2.7-V to 10-V Operating Input Voltage Range

alkaline battery.

•

Adjustable Output Voltage Range: 0.7 V to 6 V

The TPS6205x devices are synchronous pulse width

•

Fixed Output Voltage Options Available With

modulation (PWM) converters with integrated N- and

P-channel power MOSFET switches. Synchronous

1.5 V, 1.8 V, and 3.3 V

rectification increases efficiency and reduces external

•

Synchronizable to External Clock: Up to 1.2 MHz

component count. To achieve highest efficiency over

•

High-Efficiency Over a Wide Load Current Range

a wide load current range, the converter enters a

in Power-Save Mode

power-saving pulse frequency modulation (PFM)

mode at light load currents. Operating frequency is

•

100% Maximum Duty Cycle for Lowest Dropout

typically 850 kHz, allowing the use of small inductor

•

Low-Noise Operation in Forced Fixed-

and

capacitor

values.

The

device

can

be

Frequency PWM Operation Mode

synchronized to an external clock signal in the range

•

Internal Softstart

of 600 kHz to 1.2 MHz. For low noise operation, the

converter can be programmed into forced-fixed

•

Overtemperature and Overcurrent Protected

frequency in PWM mode. In shutdown mode, the

•

Available in 10-Pin Micro-Small Outline

current consumption is reduced to less than 2 µA.

Package MSOP

The TPS6205x devices are available in the 10-pin

(DGS) micro-small outline package (MSOP) and

2 Applications

operates over a free air temperature range of –40°C

to 85°C.

•

Cellular Phones

•

Organizers, PDAs, and Handheld PCs

Device Information(1)

•

Low-Power DSP Supplies

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Digital Cameras and Hard Disks

TPS62050

TPS62051

TPS62052

VSSOP (10)

3.00 mm × 3.00 mm

TPS62054

TPS62056

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

the end of the data sheet.

4 Typical Application Schematic

Efficiency vs Output Current

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.