MIC2179-3.3BSM(1998) 데이터 시트보기 (PDF) - Micrel
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MIC2179-3.3BSM Datasheet PDF : 16 Pages
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MIC2179
Skip-Mode Functional Diagram
Output Control Logic
One
Shot
S
Q
R
ILIMIT
Comp.
ILIMIT
Thresh.
Voltage
Micrel
VIN
4.5V to 16.5V
CIN
VIN 16 17
ISENSE
Amp.
110mΩ
P-channel
R1
VOUT
1.245
R2
1
SW
3
PGND
1
2
19
20
L1
IL1
D
COUT
VOUT
Skip-Mode
Comp.
MIC2179 [Adjustable] Skip-Mode Signal Path
VREF 1.245V
SGND 9 10 11 12
R1
FB
7
R2
VSW
VIN
VOUT
0
One-Shot
Pulse
ILIM
IL1
0
VREF + 5mV
VFB
VREF – 5mV
MIC2179
10
June 1998
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