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BL1117-33TY 参数 Datasheet PDF下载

BL1117-33TY图片预览
型号: BL1117-33TY
PDF下载: 下载PDF文件 查看货源
内容描述: [1A Bipolar Linear Regulator]
分类和应用:
文件页数/大小: 15 页 / 1434 K
品牌: BELLING [ BELLING ]
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BL1117  
BLOCK DIAGRAM  
DETAILED DESCRIPTION  
BL1117 is a series of low dropout voltage, three terminal regulators. Its application circuit is very simple:  
the fixed version only needs two capacitors and the adjustable version only needs two resistors and two capacitors to  
work. It is composed of some modules including start-up circuit, bias circuit, bandgap, thermal shutdown, current limit,  
power transistors and its driver circuit and so on.  
The thermal shut down modules can assure chip and its application system working safety when the junction  
temperature is larger than 140°C .  
The bandgap module provides stable reference voltage, whose temperature coefficient is compensated by careful design  
considerations. The temperature coefficient is under 100 ppm/°C . And the accuracy of output voltage is guaranteed by  
trimming technique.  
TYPICAL APPLICATION  
BL1117 has an adjustable version and six fixed versions (1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V and 12V)  
Fixed Output Voltage Version  
LC1117  
BL1117  
Vout  
Vin  
Vin  
Vout  
Gnd  
10uF  
10uF  
Application circuit of BL1117 fixed version  
1) Recommend using 10uF tan capacitor or MLCC capacitor as bypass capacitor (C1) for all application circuit.  
2) Recommend using 10uF tan capacitor MLCC capacitor to assure circuit stability.  
3) Capacitor ESR range: 3mΩ ~ 22Ω  
Adjustable Output Voltage Version  
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