MIC2178 데이터 시트보기 (PDF) - Micrel
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MIC2178 Datasheet PDF : 15 Pages
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MIC2178
Skip-Mode Functional Diagram
Output Control Logic
One
Shot
S
Q
R
ILIMIT
Comp.
ILIMIT
Thresh.
Voltage
Micrel, Inc.
VIN
4.5V to 16.5V
CIN
VIN 1 2 9
ISENSE
Amp.
100mΩ
P-channel
VOUT
R1
1.245
R2
SW
3
L1
8
IL1
D
COUT
PGND
4
5
6
7
1
VOUT
Skip-Mode
Comp.
MIC2178 [Adjustable] Skip-Mode Signal Path
VREF 1.245V
SGND 14 15 16 17
R1
FB
12
R2
VSW
VIN
VOUT
0
One-Shot
Pulse
ILIM
IL1
0
VREF + 5mV
VFB
VREF – 5mV
M9999-031805
10
March 2005
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