MIC2179-5.0BSM 데이터 시트보기 (PDF) - Micrel
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MIC2179-5.0BSM Datasheet PDF : 13 Pages
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Micrel, Inc.
Skip-Mode Functional Diagram
Output Control Logic
One
Shot
S
Q
R
ILIMIT
Comp.
ILIMIT
Thresh.
Voltage
MIC2179
VIN
4.5V to 16.5V
CIN
VIN 16 17
IS E N S E
Amp.
110mΩ
P-channel
( ) VOUT = 1.245
R1
R2
+
1
SW
3
PGND
1
2
19
20
L1
IL1
D
CO U T
VO U T
Skip-Mode
Comp.
VR EF1.245V
MIC2179 [Adjustable] Skip-Mode Signal Path
S G N D 9 10 11 12
R1
FB
7
R2
VS W
VIN
VO U T
0
One-Shot
Pulse
ILIM
IL 1
0
VR E F+ 5mV
VF B
VR E F– 5mV
June 2009
10
M9999-063009
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