CSP-6

1

FEATURES

DESCRIPTION

APPLICATIONS

VIN

SW

TPS 6260x

L

CI

2.2

F

m

VO

CO

VI

0.47

H

m

FB

MODE

EN

GND

2.3V..5.5V

1.8V/500mA

4.7

F

m

0.1

1

10

100

1000

I -LoadCurrent-mA

O

0

10

20

30

40

50

60

70

80

90

100

0

20

40

60

80

100

120

140

160

180

200

V =3.6V,

V =1.83V

I

O

L =0.5 H(Aircoil),

C =4.7 F

m

m

O

Efficiency

PFM/PWMOperation

PowerLoss

PFM/PWMOperation

TPS62600

TPS62601

500-mA, 6-MHz SYNCHRONOUS STEP-DOWN CONVERTER

IN CHIP SCALE PACKAGING

23

• 89% Efficiency at 6MHz Operation

• Output Current Up to 500mA

The

TPS6260x

device

is

a

high-frequency

• Wide V

synchronous step-down dc-dc converter optimized for

• 6MHz Regulated Frequency Operation

battery-powered portable applications. Intended for

low-power applications, the TPS6260x supports up to

• Best in Class Load and Line Transient

500mA load current, and allows the use of low cost

• ±1.5% Total DC Voltage Accuracy

chip inductor and capacitors.

• Automatic PFM/PWM Mode Switching

With a wide input voltage range of 2.3V to 5.5V, the

• 30µA Quiescent Current

device supports applications powered by Li-Ion

• 35ns Minimum On-Time

batteries with extended voltage range. Different fixed

voltage output versions are available from 1V to 2.5V.

• Internal Soft Start, <200-µs Start-Up Time

• Current Overload and Thermal Shutdown

The TPS6260x operates at a regulated 6-MHz

Protection

switching frequency and enters the power-save mode

operation at light load currents to maintain high

• Three Surface-Mount External Components

efficiency over the entire load current range.

Required (One MLCC Inductor, Two Ceramic

Capacitors)

The PFM mode extends the battery life by reducing

the quiescent current to 30

µA (typ) during light load

• Complete Sub 1-mm Component Profile

and

standby

operation.

For

noise-sensitive

Solution

applications, the device can be forced into fixed

frequency PWM mode by pulling the MODE pin high.

• Available in a 6-Pin NanoFree™ (CSP)

In the shutdown mode, the current consumption is

Packaging

reduced to less than 1

µA.

The TPS6260x is available in an 6-pin chip-scale

package (CSP).

• Cell Phones, Smart-Phones

• PDAs, Pocket PCs

• WLAN and Bluetooth™ Applications

• DVB-H Tuner Applications

• Portable Hard Disk Drives

• DC/DC Micro Modules

Figure 1. Smallest Solution Size Application

Figure 2. Efficiency vs Load Current

(Fixed Output Voltage)

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

NanoFree is a trademark of Texas Instruments.

3

Bluetooth is a trademark of Bluetooth SIG, Inc.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008, 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.