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TPS65530_08

更新时间： 2024-02-28 20:50:03
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FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER FOR DIGITAL STILL CAMERAS

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TPS65530_08 数据手册

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TPS65530  
www.ti.com ....................................................................................................................................................... SLVS744C–OCTOBER 2007–REVISED MAY 2008  
FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER FOR DIGITAL STILL CAMERAS  
1
FEATURES  
APPLICATIONS  
•
•
Digital Still Cameras (DSCs)  
Portable Electronics Equipment  
2
•
8-Channel DC/DC Converter and Low Dropout  
(LDO)  
•
Integrated Power MOSFET Switch Except CH8  
DESCRIPTION/  
ORDERING INFORMATION  
–
–
–
–
Boost (CH5/7)  
Buck (CH1/3)  
The TPS65530 is  
switching dc/dc converter, and seven channels have  
integrated power FET.  
a fully integrated 8-channel  
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)  
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.  
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  
protection (OVP) for open load.  
•
•
•
•
Fixed Max Duty Cycle Internally  
Soft Start  
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.  
Undervoltage Lockout (UVLO)  
Protection  
–
–
–
Thermal Shutdown (TSD)  
Overvoltage Protection (OVP)  
Overcurrent Protection (OCP) Except CH8  
The TPS65530 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.  
•
•
•
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  
ORDERING INFORMATION  
TA  
–25°C to 85°C  
PACKAGE(1)(2)  
ORDERABLE PART NUMBER  
TOP-SIDE MARKING  
TPS65530  
Reel of 250  
TPS65530RSLT  
TPS65530RSLR  
QFN  
Reel of 2500  
(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.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007–2008, Texas Instruments Incorporated  
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