TPS65520A Datasheet, PDF (1/61 Pages) Texas Instruments – POWER MANAGEMENT IC FOR DIGITAL STILL CAMERA

TPS65520A
www.ti.com
POWER MANAGEMENT IC FOR DIGITAL STILL CAMERA
SLVS657 – JUNE 2006
FEATURES
• Highly Efficient, 8-Channel Power
Management IC
• Fully Integrated Power MOSFETs
(Except CH-7)
• Minimal External Components
• Input Voltage Range: 1.5 to 5 V
• Short-Circuit Protection (SCP)
(Except for CH-6 and CH-8)
• Overvoltage Protection (OVP)
(CH-2, CH-3, CH-6, and CH-7)
• Overcurrent Protection (OCP) (CH-6)
• Thermal Shutdown (TSD)
• High-Accuracy Output Voltage with Trimming
• 8 mm x 8 mm BGA Package
APPLICATIONS
• Digital Still Cameras
DESCRIPTION
The TPS65520A is a highly efficient, 8-channel
power management IC for digital still cameras
(DSCs) integrating power MOSFETs. The device
operates from an input voltage range of 1.5 V to 5 V.
The optimized circuit configuration maintains stable
regulation characteristics while minimizing the
number of external components required for phase
compensation and other purposes.
The TPS65520A controls each output channel by
communicating with the Sub-CPU through a serial
interface.
NAME ⁽¹⁾
CIRCUIT
CONFIGURATION
CH-1
H-bridge step-up/down
CH-2
Step-down
CH-3
Step-up
CH-4
Step-up
OUTPUT
ADJUSTABLE
VOLTAGE [V] PARAMETER
2.65 ~ 3.2 Output voltage
1.1 ~ 1.8 Output voltage
4.5 ~ 5.2
Output voltage,
duty cycle
15 ~ 16.5
Output voltage,
duty cycle
POWER
MOSFET
Built-in
Built-in
Built-in
Built-in
CH-5
Inversion
–9 ~ –7.5
Output voltage,
duty cycle
Built-in
CH-6
Step-up with constant
current control
5.6 ~ 21
Output voltage,
duty cycle
Built-in
CH-7
CH-8
LDO-1
LDO-2
LDO-3
LDO-4
LDO-5
Step-down
Step-up
Step-up/pass-through
with skip
2.5 ~ 3.2
4.4 ~ 5.1
3.6 ~ V_CC
2.9
2.9
3.1
3.1
8.5 ~ 13.5
Output voltage,
duty cycle
Output voltage
External
Built-in
(1) CH-N represents switching regulators. LDO-N represents series regulators.
RECTIFICATION
Synchronous
Synchronous
Synchronous
Asynchronous, with
external rectification
diode
Asynchronous, with
external rectification
diode
Asynchronous, with
external rectification
diode
Synchronous
Synchronous
PURPOSE
CPU, DSP I/F
CPU, DSP core
Motor, audio
LCD, CCD
LCD, CCD
Back light LED
Reserved/switchable
IC internal power supply
Sub-CPU I/F
Sub-CPU core
Charge backup battery
USB
LCD
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.
TMS320 is a trademark of Texas Instruments.
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 © 2006, Texas Instruments Incorporated