0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

0.01

0.10

1.00

Output Load (A)

C001

LX1

FB1

LX2

FB2

LX3

FB3

PVINx

VIN

ENx

SSx

SDA

SCL

PGND

AGND

Vin

Vout1

Vout3

TPS65263

Vout2

DVCC

SDA

SCL

VOUT3

VOUT2

VOUT1

Vout1

Vout2

Vout3

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TPS65263

SLVSCN0A – JUNE 2014 – REVISED SEPTEMBER 2014

TPS65263, 4.5- to 18-V Input Voltage, 3-A/2-A/2-A Output Current Triple Synchronous

1 Features

3 Description

The TPS65263 incorporates triple synchronous buck

1

•

Operating Input Voltage Range 4.5- to 18-V

converters with 4.5- to 18-V wide input voltage range

Continuous Output Current 3 A/2 A/2 A

that encompassed most intermediate bus voltage

•

operating off 5-, 9-, 12-, or 15-V power bus or battery.

Voltage from 0.68 to 1.95 V With 10-mV Voltage

The converter, with constant frequency peak current

Step for Each Buck

mode, is designed to simplify its application while

giving designers options to optimize the system

•

according

to

targeted

applications.

The

device

•

operates in 600 kHz with 180° out-of-phase between

Warning for Each Buck

buck1 and buck2, buck3 (buck2 and buck3 run in

•

phase).

•

The initial startup voltage of each buck can be set

(100 kHz) and Fast Mode (400 kHz)

with external feedback resistors. The output voltage

•

Feedback Reference Voltage 0.6 V ±1%

of each buck can be dynamically scaled from 0.68 to

•

Fixed 600-kHz Frequency

The VID voltage transition slew rate is programmable

•

Dedicated Enable and Soft Start Pins for Each

Buck

overshoot/undershoot during VID voltage transition.

•

Thermal Overloading Protection

enabling/disabling output voltage, setting the pulse

2 Applications

skipping mode (PSM) or force continuous current

mode (FCC) at light load condition and reading the

•

DTV LCD Panel

power good status, overcurrent warning and die

•

Set-Top Boxes

temperature warning.

•

Home Gateway and Access Point Networks

The TPS65263 features overvoltage, overcurrent,

•

Surveillance

short-circuit, and overtemperature protection.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS65263

VQFN (32)

5.00 mm × 5.00 mm

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

the end of the data sheet.

Efficiency vs Output Load

4 Typical Application

A.

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.