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TPS65530

更新时间： 2024-11-14 04:48:43
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德州仪器 - TI 转换器数码相机
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30页 620K
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FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER FOR DIGITAL STILL CAMERAS

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TPS65530 数据手册

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TPS65530  
www.ti.com  
SLVS744B–OCTOBER 2007–REVISED NOVEMBER 2007  
FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER FOR DIGITAL STILL CAMERAS  
1
FEATURES  
APPLICATIONS  
•
Digital Still Cameras (DSCs)  
2
•
8-Channel DC/DC Converters and LDO  
•
Portable Electronics Equipment  
•
Integrated Power MOSFET Switch Except CH8  
–
–
–
–
Boost (CH5/7)  
Buck (CH1/3)  
DESCRIPTION/  
ORDERING INFORMATION  
Buck-Boost (CH2/4)  
Invert (CH6)  
The TPS65530 is highly integrated 8-channel  
switching dc/dc converter, and seven channels have  
integrated power FET.  
•
•
•
•
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 for open load.  
•
•
•
•
Fixed Max Duty Cycle Internally  
Soft Start  
Undervoltage Lockout (UVLO)  
Protection  
CH1/2/3 has power ON/OFF sequence suitable for a  
digital still camera (DSC) system. CH5/6 has 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.  
–
–
–
Thermal Shutdown (TSD)  
Overvoltage Protection (OVP)  
Overcurrent Protection (OCP) Except CH8  
•
•
•
Supply Voltage Range: 1.5 V to 5.5 V  
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.  
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)  
ORDERABLE PART NUMBER  
TOP-SIDE MARKING  
TPS65530  
Reel of 250  
TPS65530RSLT  
TPS65530RSLR  
QFN  
Reel of 2500  
(1) 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, Texas Instruments Incorporated  
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