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MIC4681BM 参数 Datasheet PDF下载

MIC4681BM图片预览
型号: MIC4681BM
PDF下载: 下载PDF文件 查看货源
内容描述: 2A峰值SuperSwitcher SOP- 8降压稳压器 [2A-Peak SuperSwitcher SOP-8 Buck Regulator]
分类和应用: 稳压器
文件页数/大小: 16 页 / 247 K
品牌: MICREL [ MICREL SEMICONDUCTOR ]
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MIC4681
Micrel
Functional Characteristics
Switching Frequency Foldback
V
SW
(NORMAL)
12V IN, 5V/1A OUT
Load Transient
I
OUT
(1A/div)
Normal
Operation
1.5A
0A
100mV
200kHz
V
SW
(SHORTED)
12V IN, 0V OUT
Short
Circuit
Operation
V
OUT
(100mV/div)
60kHz
V
IN
= 12V
V
OUT
= 5V
TIME (100µs/div)
TIME
Frequency Foldback
The MIC4681 folds the switching frequency back during a hard
short-circuit condition to reduce the energy per cycle and
protect the device.
MIC4681
8
April 2005