MIC2179-3.3YSM 데이터 시트보기 (PDF) - Micrel
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MIC2179-3.3YSM Datasheet PDF : 13 Pages
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Micrel, Inc.
PWM-Mode Functional Diagram
VIN
4.5V to 16.5V
MIC2179
CIN
VIN 16 17
IS E N S E
Amp.
110mΩ
P-channel
110mΩ
N-channel
Stop
S Y NC
13
200kHz
Oscillator
Corrective
Ramp
Reset
Pulse
COMP
CC
RC 8
R
Q
S
PWM
Comp.
Error
Amp.
VR EF1.245V
MIC2179 [Adjustable] PWM-Mode Signal Path
S G N D 9 10 11 12
( ) VOUT = 1.245
R1
R2
+
1
SW
3
PGND
1
2
19
20
L1
IL1
D
CO U T
VO U T
R1
FB
7
R2
VS W
Reset
Pulse
IL O A D
IL 1
∆IL1
Error Amp.
Output
IS E N S E
June 2009
9
M9999-063009
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