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TPS61202DSC PDF预览

TPS61202DSC

更新时间： 2024-11-15 05:53:11
品牌 Logo 应用领域
德州仪器 - TI 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管输入元件升压转换器
页数 文件大小 规格书
26页 996K
描述
LOW INPUT VOLTAGE SYNCHRONOUS BOOST CONVERTER WITH 1.3-A SWITCHES

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中文翻译

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TPS61202DSC 技术参数

生命周期：Obsolete零件包装代码：QFN
包装说明：3 X 3 MM, PLASTIC, QFN-10针数：10
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.19
Is Samacsys：N模拟集成电路 - 其他类型：BATTERY CHARGE CONTROLLER
控制技术：PULSE WIDTH MODULATION最大输入电压：5.5 V
最小输入电压：0.3 V标称输入电压：1.2 V
JESD-30 代码：S-PDSO-N10长度：3 mm
功能数量：1端子数量：10
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：1.5 A标称输出电压：5 V
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态：Not Qualified座面最大高度：1 mm
表面贴装：YES切换器配置：BOOST
最大切换频率：1650 kHz温度等级：INDUSTRIAL
端子形式：NO LEAD端子节距：0.5 mm
端子位置：DUAL宽度：3 mm
Base Number Matches：1

TPS61202DSC 数据手册

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TPS61200  
TPS61201  
(3,25 mm x 3,25 mm)  
TPS61202  
www.ti.com  
SLVS577B–MARCH 2007–REVISED FEBRUARY 2008  
LOW INPUT VOLTAGE SYNCHRONOUS BOOST CONVERTER  
WITH 1.3-A SWITCHES  
1
FEATURES  
•
Power Save Mode for Improved Efficiency at  
Low Output Power  
2
•
More than 90% Efficiency at  
•
•
•
•
Forced fixed Frequency Operation possible  
Load Disconnect During Shutdown  
Overtemperature Protection  
–
300 mA Output Current at 3.3 V  
(VIN ≥ 2.4 V)  
–
600 mA Output Current at 5 V (VIN ≥ 3 V)  
•
Automatic Transition between Boost Mode and  
Down Conversion Mode  
Small 3 mm x 3 mm QFN-10 Package  
APPLICATIONS  
•
•
•
Device Quiescent Current less than 55 µA  
•
All Single-Cell, Two-Cell and Three-Cell  
Alkaline, NiCd or NiMH or Single-Cell Li  
Battery Powered Products  
Startup into Full Load at 0.5 V Input Voltage  
Operating Input Voltage Range from  
0.3 V to 5.5 V  
•
•
•
•
•
•
Fuel Cell And Solar Cell Powered Products  
Portable Audio Players  
PDAs  
Cellular Phones  
Personal Medical Products  
White LED's  
•
•
•
Programmable Undervoltage Lockout  
Threshold  
Output Short Circuit Protection Under all  
Operating Conditions  
Fixed and Adjustable Output Voltage Options  
from 1.8 V to 5.5 V  
DESCRIPTION  
The TPS6120x devices provide a power supply solution for products powered by either a single-cell, two-cell, or  
three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. It is also used in fuel cell or solar cell  
powered devices where the capability of handling low input voltages is essential. Possible output currents are  
depending on the input to output voltage ratio. The devices provides output currents up to 600 mA at a 5-V  
output while using a single-cell Li-Ion or Li-Polymer battery, and discharge it down to 2.5 V. The boost converter  
is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain  
maximum efficiency. At low load currents, the converter enters the Power Save mode to maintain a high  
efficiency over a wide load current range. The Power Save mode can be disabled, forcing the converter to  
operate at a fixed switching frequency. The maximum average input current is limited to a value of 1500 mA. The  
output voltage can be programmed by an external resistor divider, or is fixed internally on the chip. The converter  
can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the  
battery. The device is packaged in a 10-pin QFN PowerPAD™ package (DRC) measuring 3 mm x 3 mm.  
L1  
2.2 mH  
VIN  
L
VOUT  
VAUX  
C1  
VIN  
0.3 V to 5.5 V  
EN  
C2  
10 mF  
VOUT  
1.8 V to 5.5 V  
R
R
1
PS  
C3  
10 mF  
0.1 mF  
UVLO  
FB  
2
GND  
PGND  
TPS61200  
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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