VLDO1

SW

TPS65000/1

VINDCDC

VIN

VIN

VINLDO2

EN_LDO2

VDCDC

10mF

2.2 H

m

10 F

m

470kW

EN_DCDC

EN_LDO1

VINLDO1

PGND

P

P

FB_DCDC

P

PG

MODE

470kW

180kW

FB_LDO1

AGND

A

A

A

10 F

m

P

VLDO2

820kW

180kW

FB_LDO2

10 F

m

P

680W

150kW

A

3.3V

VLDO1

1.8V

VLDO2

2.8V

475kW

100nF

22pF

RSTSNS

VIN

MR

100kW

RST

TRST

A

A

VIN

232kW

470kW

A

A

0.1mF

Supply

Voltage

Supervisor

Oscillator

SSCG

BandgapReference

TPS65000/01 JointFunction/Pin

TPS65001OnlyFunction/Pin

LDO1

300mA

LDO2

300mA

A

Step-Down

600mA

VDCDC

TPS65000, TPS65001, TPS650001

TPS650003, TPS650006, TPS650061

www.ti.com

SLVS810A – JUNE 2009 – REVISED OCTOBER 2009

2.25 MHz Step Down Converter with Dual LDOs and SVS

Check for Samples: TPS65000 TPS65001 TPS650001 TPS650003 TPS650006 TPS650061

1

FEATURES

DESCRIPTION

2

•

Step-Down Converters:

–

The TPS65000 and TPS65001 are single chip Power

Management ICs for portable applications. Both

–

Spread Spectrum Clock (SSC) Generation

devices combine a single step-down converter with

for Reduced EMI

two low dropout regulators. The step-down converter

–

2.25MHz Fixed Frequency Operation

enters a low power mode at light load for maximum

–

600mA or 1A (TPS650061) Output Current

efficiency across the widest possible range of load

currents. For low noise applications, the devices can

•

LDOs:

be forced into fixed frequency PWM via a pin. The

–

step-down converter allows the use of a small

–

Adjustable Output Voltage

inductor and capacitors to achieve a small solution

size. The step-down converter has Power Good

–

Up to 300mA Output Current

status output that can be used for sequencing. The

–

Separate Power Inputs and Enables

LDOs are capable of supplying 300mA, and can

•

Supply Voltage Supervisor (TPS65001)

operate with an input voltage range between 1.6V

and 6V, allowing them to be supplied from the

–

Manual Reset Input for Push Button

step-down converter or directly from the main battery.

–

Adjustable Reset Time

The

step-down

converter

and

the

LDOs

have

–

Adjustable Reset Voltage

separate voltage inputs and enables, allowing for

design and sequencing flexibility.

•

3mm × 3mm 16-Pin QFN (TPS65000)

•

3mm x×3mm 20-Pin QFN (TPS65001)

The TPS65000 is available in a 16-pin leadless

package (3mm × 3mm QFN).

APPLICATIONS

The TPS65001 extends functionality by adding a

•

Point of Load

Supply Voltage Supervisor (SVS). The SVS allows

•

Embedded Processor Power

maximum flexibility by having the reset voltage set

with two external resistors, and the reset time set by

•

Cell Phones, Smart-Phones

a small external capacitor. In addition, an active low

•

PDAs, Pocket PCs

Manual Reset input allows the SVS to be connected

•

Portable Media Players

to a push button for external control.

The TPS65001 is available in a 20-pin leadless

package (3mm × 3mm QFN).

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

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 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.