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MIC4043 Datasheet(PDF) 8 Page - MIC GROUP RECTIFIERS

Part # MIC4043
Description  Low-Voltage Secondary-Side Shunt Regulator Final Information
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Manufacturer  MIC [MIC GROUP RECTIFIERS]
Direct Link  http://www.cnmic.com
Logo MIC - MIC GROUP RECTIFIERS

MIC4043 Datasheet(HTML) 8 Page - MIC GROUP RECTIFIERS

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MIC4043
Micrel
MIC4043
8
November 2000
Off-Line 2.5V/2A Power Supply
R13
10
Ω 1%
C11
1200
µF
10V
R14
200
Ω
1%
VOUT
+2.5V/2A
D4
12CTQ045
L2
5
µH
C12
220
µF
10V
U2b
2501
U3
249
Ω
1000pF
MIC4043
R10
72k
1%
R11
33k
1%
U1
MIC38HC43BN
VDD
VREF
GND
COMP
VOUT
RT/CT
FB
ISNS
2
1
4
3
8
5
7
6
R2
332k
1%
R3
332k
1%
D1
1N4448
R4
34
Ω
1%
C5
0.1
µF
50/
63V
D2
18V
C7
470pF
63V
C6
470pF
63V
Q1
IRFIBE30G
L1
R5
1.21k 1%
R6
1.21k
1%
BR1
DBR1
C4
47
µF
400V
U2a
2501
F1
85 to 264Vac
50/60Hz
Hot
Neutral
Return
T1
1
2
7
6
4
3
1A
Ground
R8
1.9
Ω
1/4W
1%
R9
470
Ω
1/2W
D3
UF4005
C9
100pF
1kV
R1
1k 1%
R7
14k 1%
C3
2200pF
400V
C2
2200pF
400V
C1
0.1
µF
250V
C10
0.1
µF
50/63V
80T
3T
20mH
C8
22
µF
25V
10T
FB
GND
SNK
IN
V
1.245V
R2
R1
1
TRIP =+


Figure 4. Off-Line 2.5V/2A Power Supply
Figure 4a. 2.5V/1A Bode Plot
(θ margin = 83°)
Figure 4b. 2.5V/2A Bode Plot
(θ margin = 83°)


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