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TPS65530A Datasheet Preview

TPS65530A Datasheet

FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER

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TPS65530A
www.ti.com............................................................................................................................................................ SLVS835C – APRIL 2008 – REVISED APRIL 2009
FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER FOR DIGITAL STILL CAMERAS
FEATURES
1
2 8-Channel DC/DC Converter and
Low Dropout (LDO)
Integrated Power MOSFET Switch Except CH8
– Boost (CH5/7)
– Buck (CH1/3)
– Buck-Boost (CH2/4)
– Invert (CH6)
Low-Power Suspend Mode (Sleep Mode)
Power ON/OFF Sequence (CH1/2/3 and CH5/6)
LED-Back Light Brightness Control (CH7)
Fixed Switching Frequency (CH1–4: 1.5 MHz,
CH5–8: 750 kHz)
Fixed Max Duty Cycle Internally
Soft Start
Undervoltage Lockout (UVLO)
Protection
– Thermal Shutdown (TSD)
– Overvoltage Protection (OVP)
– Overcurrent Protection (OCP) Except CH8
Supply Voltage Range: 1.5 V to 5.5 V
Operating Temperature Range: –25°C to 85°C
6 × 6 mm, 0.4-mm Pitch, 48-Pin QFN Package
APPLICATIONS
Digital Still Cameras (DSCs)
Portable Electronics Equipment
DESCRIPTION/
ORDERING INFORMATION
The TPS65530A is a fully integrated 8-channel
switching dc/dc converter, and seven channels have
integrated power FET.
CH2/4 are configured for H bridge for buck-boost
topology and single inductor supports. These
channels achieve higher efficiency in spite of
input/output voltage conditions.
CH7 has a brightness control and drives white LED
by constant current. Also, CH7 supports overvoltage
protection (OVP) for open load.
CH1/2/3 have a power ON/OFF sequence suitable for
a digital still camera (DSC) system. CH5/6 have a
power ON/OFF sequence, depending on the CCD.
Power ON/OFF for CCD block (CH5/6) is selectable
by the input voltage level at the SEQ56 pin. CH4 and
CH7 have individual ON/OFF sequences.
The TPS65530A high switching frequency is
achieved by an integrated power MOSFET switch. It
reduces external parts dynamically. Shutdown current
consumption is less than 1 µA as a typical value.
TA
–25°C to 85°C
QFN
ORDERING INFORMATION
PACKAGE (1) (2)
ORDERABLE PART NUMBER
Reel of 250
TPS65530ARSLT
Reel of 2500
TPS65530ARSLR
TOP-SIDE MARKING
TPS65530A
(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.
PowerPAD is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008–2009, Texas Instruments Incorporated




etcTI

TPS65530A Datasheet Preview

TPS65530A Datasheet

FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER

No Preview Available !

TPS65530A
SLVS835C – APRIL 2008 – REVISED APRIL 2009............................................................................................................................................................ www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
CHANNEL CONFIGURATION
CHANNEL
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
REF
OPERATION
MODE
Buck SW
Buck-boost SW
Buck SW
Buck-boost SW
Boost SW
Invert SW
Boost SW
Boost SW
Low dropout
voltage
RECTIFY
MODE
Synchronous
Synchronous
Synchronous
Synchronous
Nonsynchronous
Nonsynchronous
Nonsynchronous
Synchronous
CONTROL
METHOD
Voltage
Average current
Voltage
Average current
Peak current
Voltage
Voltage
Voltage
QFN PACKAGE
(TOP VIEW)
OUTPUT
VOLTAGE
(V)
0.9 to 2.5
2.5 to 3.6
0.9 to 2.5
2.2 to 3.6
Up to 18
–10 to –5
3 to 20
3.3 to 5.5
2.8
APPLICATION
Engine core
Engine I/O
(DSP I/F)
External memory
AFE
CCD+
CCD–
Backlight LED
Motor controller
and IC drive supply
Internal supply for
logic
MAXIMUM
SUPPLY
CURRENT
(mA)
600
600
300
300
50
100
25
15
SW4S 1
PGND4 2
SW4I 3
VOUT4 4
FB4 5
ENAFE 6
XSLEEP 7
EN7 8
S/S 9
AGND 10
REF 11
VCC2 12
PowerPAD™
36 SW7
35 FBV
34 CIN
33 FBC
32 B-ADJ
31 FBG7/8
30 FB8
29 PS
28 SW8HD
27 LL8
26 SW8LD
25 PGND3
2 Submit Documentation Feedback
Copyright © 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS65530A


Part Number TPS65530A
Description FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER
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Total Page 30 Pages
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