1
FEATURES
APPLICATIONS
DESCRIPTION/
www.ti.com............................................................................................................................................................ SLVS835C – APRIL 2008 – REVISED APRIL 2009
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
A as a typical value.
ORDERING INFORMATION
TA
PACKAGE(1)(2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
Reel of 250
TPS65530ARSLT
–25°C to 85°C
QFN
TPS65530A
Reel of 2500
TPS65530ARSLR
(1)
(2)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
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.