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APW1172KAI-TRL 参数 Datasheet PDF下载

APW1172KAI-TRL图片预览
型号: APW1172KAI-TRL
PDF下载: 下载PDF文件 查看货源
内容描述: 2.5A开关降压开关稳压器 [2.5A SWITCH STEP DOWN SWITCHING REGULATOR]
分类和应用: 稳压器开关
文件页数/大小: 21 页 / 443 K
品牌: ANPEC [ ANPEC ELECTRONICS COROPRATION ]
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APW1172  
Layout Consideration  
1. Please solder the Exposed Pad on the PCB.The heat generated by the power consumption will conduct by  
the thermal pad.  
2. Please place the input capacitors for VCC pin nearly as close as possible.  
3. Connect the switching inductor and the Schottky diode and OUT pin by a wide track.  
4. Place the output capacitor close to the inductor as possible and with a wide and short track.  
5.The thermal pad is needed to improve the power dissipation.  
VREF = 3.3V  
VOUT = 3.3V  
1
2
3
4
8
7
6
5
OUT  
VCC  
GND  
VREF  
FB  
L
SYNC  
INH  
22uH  
COMP  
RC1  
4.3K  
APW1172  
D1  
1N5819  
COUT  
100uF  
CIN  
22uF  
VIN  
4.8V to 22V  
RF2  
3.3K  
RF1  
5.6K  
CC1  
CC2  
2.2nF  
220pF  
Copyright ã ANPEC Electronics Corp.  
17  
www.anpec.com.tw  
Rev. A.4 - Aug., 2005