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FEATURES

APPLICATIONS

DESCRIPTION

TPS65050, TPS65051, TPS65052

TPS65054, TPS65056

SLVS710 – JANUARY 2007

6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS

AND 4 LOW-INPUT VOLTAGE LDOs

• Cell Phones, Smart-Phones

• Up To 95% Efficiency

• WLAN

• Output Current for DC/DC Converters:

• PDAs, Pocket PCs

–

TPS65050: 2 x 0.6 A

• OMAP™ and Low-Power TMS320™ DSP

–

TPS65051: DCDC1 = 1 A; DCDC2 = 0.6 A

Supply

–

TPS65052: DCDC1 = 1 A; DCDC2 = 0.6 A

• Samsung S3C24xx application processor

–

TPS65054: 2 x 0.6 A

Supply

–

TPS65056: DCDC1 = 1 A; DCDC2 = 0.6 A

• Portable Media Players

• Output Voltages for DC/DC Converters

–

TPS65050: Externally Adjustable

The TPS6505x are integrated Power Management

–

TPS65051: Externally Adjustable

ICs for applications powered by one Li-Ion or

–

TPS65052: DCDC1 = Fixed at 3.3 V;

Li-Polymer cell, which require multiple power rails.

DCDC2 = 1 V / 1.3 V for Samsung

The TPS6505x provides two efficient, 2.25-MHz

Application Processors

step-down converters targeted at providing the core

–

TPS65054: DCDC1 = Externally Adjustable;

voltage and I/O voltage in a processor based

DCDC2 = 1.3 V / 1.05 V for OMAP™1710

system. Both step-down converters enter a low

power mode at light load for maximum efficiency

Processor

across the widest possible range of load currents.

–

TPS65056: DCDC1 = Fixed at 3.3 V;

DCDC2 = 1 V / 1.3 V for Samsung

For low noise applications, the devices can be forced

Application Processors

into fixed frequency PWM mode by pulling the

MODE pin high. In the shutdown mode, the current

• V

consumption is reduced to less than 1

µA. The

From 2.5 V to 6 V

devices allow the use of small inductors and

• 2.25-MHz Fixed Frequency Operation

capacitors

to

achieve

a

small

solution

size.

• Power Save Mode at Light Load Current

TPS6505x provides an output current of up to 1 A on

each DC/DC converter. The TPS6505x also integrate

• 180° Out-of-Phase Operation

two 400-mA LDO and two 200-mA LDO voltage

• Output Voltage Accuracy in PWM mode ±1%

regulators, which can be turned on/off using separate

• Low Ripple PFM Mode

enable pins on each LDO. Each LDO operates with

an input voltage range between 1.5 V and 6.5 V

• Total Typical 32-µA Quiescent Current for

allowing them to be supplied from one of the

Both DC/DC Converters

step-down converters or directly from the main

• 100% Duty Cycle for Lowest Dropout

battery.

• Two General-Purpose 400-mA, High PSRR

Four digital input pins are used to set the output

LDOs

voltage of the LDOs from a set of 16 different

• Two General-Purpose 200-mA, High PSRR

combinations for LDO1 to LDO4 on TPS65050 and

LDOs

TPS65052. In TPS65051, TPS65054 and TPS65056,

the LDO voltages are adjustable using external

• V

resistor dividers.

• Digital Voltage Selection for the LDOs

The TPS6505x come in a small 32-pin leadless

• Available in a 4 mm x 4 mm 32-Pin QFN

package (4 mm x 4 mm QFN) with a 0.4 mm pitch.

Package

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.

OMAP, TMS320, PowerPAD are trademarks of Texas Instruments.

UNLESS

OTHERWISE

NOTED

this

document

contains

Copyright © 2007, Texas Instruments Incorporated

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.