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ACT4082AUS-T 参数 Datasheet PDF下载

ACT4082AUS-T图片预览
型号: ACT4082AUS-T
PDF下载: 下载PDF文件 查看货源
内容描述: 16V , 1.2A , 1.4MHz的降压型DC / DC采用SOT23-6转换器 [16V, 1.2A, 1.4MHz Step-Down DC/DC Converter in SOT23-6]
分类和应用: 转换器
文件页数/大小: 11 页 / 420 K
品牌: ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
 浏览型号ACT4082AUS-T的Datasheet PDF文件第3页浏览型号ACT4082AUS-T的Datasheet PDF文件第4页浏览型号ACT4082AUS-T的Datasheet PDF文件第5页浏览型号ACT4082AUS-T的Datasheet PDF文件第6页浏览型号ACT4082AUS-T的Datasheet PDF文件第7页浏览型号ACT4082AUS-T的Datasheet PDF文件第8页浏览型号ACT4082AUS-T的Datasheet PDF文件第10页浏览型号ACT4082AUS-T的Datasheet PDF文件第11页  
ACT4082A  
Active- Semi  
Rev0, 16-May-08  
Figure 3:  
ACT4082A Optimized for Minimal External Components  
The ACT4082A with provides excellent AC and DC results across a wide range of external component combinations. The circuit of  
Figure 3 can be used to generate a 5V output from a 12V input utilizing a smaller (i.e. lower-cost) output capacitor while maintaining  
good performance.  
2
6
1
VIN  
IN  
BST  
C1  
10µF  
C3  
22nF  
L1  
4.7µH  
VOUT  
5V  
ACT4082A  
SW  
FB  
D1  
B230A  
C2  
4.7µF  
3
ON  
EN  
OFF  
RFB1  
4
G
150k
1%  
28.7k
RFB2  
5
1%  
Figure 5:  
Figure 4:  
Circuit of Figure 3 (ILOAD = 1A)  
Circuit of Figure 3 (ILOAD = 150mA to 850mA)  
Circuit of Figure 3  
ILOAD = 150mA to 850mA  
Circuit of Figure 3  
I
LOAD = 1A  
CH1  
CH2  
CH1  
CH2  
CH1: ILOAD, 500mA/div  
CH1: VSW, 10V/div  
CH2: VOUT, 100mV/div (AC Coupled)  
TIME: 200µs/div  
CH2: VOUT, 20mV/div (AC Coupled)  
TIME: 400ns/div  
Innovative PowerTM  
- 9 -  
www.active-semi.com  
Copyright © 2008 Active-Semi, Inc.