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Part Name
Description
MIC2178YWM View Datasheet(PDF) - Micrel
Part Name
Description
Manufacturer
MIC2178YWM
2.5A Synchronous Buck Regulator
Micrel
MIC2178YWM Datasheet PDF : 15 Pages
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MIC2178
Skip-Mode Functional Diagram
Output Control Logic
One
Shot
S
Q
R
I
LIMIT
Comp.
I
LIMIT
Thresh.
Voltage
Micrel, Inc.
V
IN
4.5V to 16.5V
C
IN
VIN
1 2 9
I
SENSE
Amp.
100m
Ω
P-channel
V
OUT
R1
1.245
R2
SW
3
L1
8
I
L1
D
C
OUT
PGND
4
5
6
7
1
V
OUT
Skip-Mode
Comp.
MIC2178 [Adjustable] Skip-Mode Signal Path
V
REF
1.245V
SGND
14 15 16 17
R1
FB
12
R2
V
SW
V
IN
V
OUT
0
One-Shot
Pulse
I
LIM
I
L1
0
V
REF
+ 5mV
V
FB
V
REF
– 5mV
M9999-031805
10
March 2005
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