1

FEATURES

APPLICATIONS

DESCRIPTION

TPS65053

TPS650531

TPS650532

5-CHANNEL POWER MGMT IC WITH TWO STEP DOWN CONVERTERS

AND 3 LOW-INPUT VOLTAGE LDOs

• One General-Purpose 400-mA LDO

2

• Up To 95% Efficiency

• Two General-Purpose 200-mA LDOs

• Output Current for DC/DC Converters:

• V

–

TPS65053: DCDC1 = 1 A; DCDC2 = 0.6 A

• Output Voltage for LDO3:

–

TPS650531: DCDC1 = 1 A; DCDC2 = 1 A

–

TPS65053: VLDO3 = 1.3 V

–

TPS650532: DCDC1 = 1 A; DCDC2 = 1 A

–

TPS650531: VLDO3 = 1.2 V

• DC/DC Converters Externally Adjustable

–

TPS650532: VLDO3 = 1.5 V

• V

• Available in a 4 mm x 4 mm 24-Pin QFN

From 2.5 V to 6 V

Package

• 2.25-MHz Fixed Frequency Operation

• Power Save Mode at Light Load Current

• Cell Phones, Smart-Phones

• 180° Out-of-Phase Operation

• WLAN

• Output Voltage Accuracy in PWM mode ±1%

• PDAs, Pocket PCs, GPS

• Total Typical 32-µA Quiescent Current for Both

• OMAP™ and Low-Power DSP Supply

DC/DC Converters

• Portable Media Players

• 100% Duty Cycle for Lowest Dropout

• Digital Cameras

The TPS65053x are integrated Power Management ICs for applications powered by one Li-Ion or Li-Polymer

cell, which require multiple power rails. The TPS65053x provide two highly efficient, 2.25MHz step-down

converters targeted at providing the core voltage and I/O voltage in a processor based system. Both step-down

converters enter a low power mode at light load for maximum efficiency across the widest possible range of load

currents. For low noise applications the devices can be forced into fixed frequency PWM mode by pulling the

MODE pin high. Both converters allow the use of small inductors and capacitors to achieve a small solution size.

TPS65053 provides an output current of up to 1A on the DCDC1 converter and up to 0.6A on the DCDC2

converter. TPS650531 and TPS650532 provide up to 1A on both DCDC1 and DCDC2. The TPS65053x also

integrate one 400mA LDO and two 200mA LDO voltage regulators, which can be turned on/off using separate

enable pins on each LDO. Each LDO operates with an input voltage range between 1.5V and 6.5V allowing them

to be supplied from one of the step-down converters or directly from the main battery. LDO1 and LDO2 are

externally adjustable while LDO3 has a fixed output voltage of 1.3V on TPS65053, 1.2V on TPS650531 and 1.5V

on TPS650532.

The TPS65053x come in a small 24-pin leadless package (4mm × 4mm QFN) with a 0,5mm pitch.

PART

PACKAGE

output voltage on LDO3

NUMBER

PACKAGE

MARKING

–40°C to 85°C

TPS65053

1.3V

RGE

65053

–40°C to 85°C

TPS650531

1.2V

RGE

650531

–40°C to 85°C

TPS650532

1.5V

RGE

650532

(1)

For the most current package and ordering information, see the Package Option Addendum at the end

(2)

The RGE package is available in tape and reel. Add R suffix (TPS65053RGER) to order quantities of

3000 parts per reel. Add T suffix (TPS65053RGET) to order quantities of 250 parts per reel.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

OMAP, PowerPAD are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2009, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.