1

FEATURES

APPLICATIONS

DESCRIPTION/

TPS65530A

FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER FOR DIGITAL STILL CAMERAS

• Digital Still Cameras (DSCs)

2

• 8-Channel DC/DC Converter and

Low Dropout (LDO)

• Portable Electronics Equipment

• Integrated Power MOSFET Switch Except CH8

–

Boost (CH5/7)

ORDERING INFORMATION

–

Buck (CH1/3)

The TPS65530A is a fully integrated 8-channel

–

Buck-Boost (CH2/4)

switching dc/dc converter, and seven channels have

–

Invert (CH6)

integrated power FET.

• Low-Power Suspend Mode (Sleep Mode)

CH2/4 are configured for H bridge for buck-boost

• Power ON/OFF Sequence (CH1/2/3 and CH5/6)

topology

and

single

inductor

supports.

These

• LED-Back Light Brightness Control (CH7)

channels

achieve

higher

efficiency

in

spite

of

input/output voltage conditions.

• Fixed Switching Frequency (CH1–4: 1.5 MHz,

CH5–8: 750 kHz)

CH7 has a brightness control and drives white LED

by constant current. Also, CH7 supports overvoltage

• Fixed Max Duty Cycle Internally

protection (OVP) for open load.

• Soft Start

CH1/2/3 have a power ON/OFF sequence suitable for

• Undervoltage Lockout (UVLO)

a digital still camera (DSC) system. CH5/6 have a

• Protection

power ON/OFF sequence, depending on the CCD.

–

Thermal Shutdown (TSD)

Power ON/OFF for CCD block (CH5/6) is selectable

by the input voltage level at the SEQ56 pin. CH4 and

–

Overvoltage Protection (OVP)

CH7 have individual ON/OFF sequences.

–

Overcurrent Protection (OCP) Except CH8

The

TPS65530A

high

switching

frequency

is

• Supply Voltage Range: 1.5 V to 5.5 V

achieved by an integrated power MOSFET switch. It

• Operating Temperature Range: –25°C to 85°C

reduces external parts dynamically. Shutdown current

• 6 × 6 mm, 0.4-mm Pitch, 48-Pin QFN Package

consumption is less than 1

µA as a typical value.

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

Reel of 250

TPS65530ARSLT

–25°C to 85°C

QFN

TPS65530A

Reel of 2500

TPS65530ARSLR

(1)

Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

(2)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

website at www.ti.com.

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 © 2008–2009, 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.