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MIC4576BT Datasheet(PDF) 7 Page - Micrel Semiconductor

Part # MIC4576BT
Description  200kHz Simple 3A Buck Regulator
PDF  8 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC4576BT Datasheet(HTML) 7 Page - Micrel Semiconductor

  MIC4576BT Datasheet HTML 1Page - Micrel Semiconductor MIC4576BT Datasheet HTML 2Page - Micrel Semiconductor MIC4576BT Datasheet HTML 3Page - Micrel Semiconductor MIC4576BT Datasheet HTML 4Page - Micrel Semiconductor MIC4576BT Datasheet HTML 5Page - Micrel Semiconductor MIC4576BT Datasheet HTML 6Page - Micrel Semiconductor MIC4576BT Datasheet HTML 7Page - Micrel Semiconductor MIC4576BT Datasheet HTML 8Page - Micrel Semiconductor  
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March 2006
7
MIC4576
MIC4576
Micrel, Inc.
Note 2: Surface-mount component.
C1
470µF
35V
D1
1N5822
C2
1000µF
16V
L1
33µH
GND
FB
SW
MIC4576-5.0BT
SHDN
8V to 24V
5V/3A
VIN
C1 Nichicon UPL1J471MPH, ESR = 0.046Ω
C2 Nichicon UPL1C102MPH, ESR = 0.047Ω
D1 Motorola MBR5822
L1 Coiltronics PL52C-33-1000, DCR = 0.036
L1 Bi
HM77-30004, DCR = 0.045Ω,
Note 2
3
4
2
5
1
Figure 3. 8V–24V to 5V/3A Buck Converter
Through Hole
C1
470µF
63V
D1
MBR360
C2
1000µF
16V
L1
33µH
GND
FB
SW
MIC4576-5.0BT
SHDN
8V to 36V
5V/3A
VIN
C1 Nichicon UPL1J471MRH, ESR = 0.039Ω
C2 Nichicon UPL1C102MPH, ESR = 0.047Ω
D1 Motorola MBR360
L1 Coiltronics PLS2C-33-1000, DCR = 0.036
L1 Bi
HM77-30004, DCR = 0.045Ω,
Note 2
3
4
2
5
1
Figure 4. 8V–36V to 5V/3A Buck Converter
Through Hole
C1
470µF
63V
MBR360
C2
1000µF
16V
L1
68µH
GND
FB
SW
MIC4576BT
SHDN
16V to 36V
12V/3A
VIN
R2
13.0k
1%
R1
1.50k
1%
C1 Nichicon UPL1J471MPH, ESR = 0.039Ω
C2 Nichicon UPL1C102MPH, ESR = 0.047Ω
D1 Motorola MBR360
L1 Bi
HM77-29006, DCR = 0.08Ω
5
1
4
2
3
Figure 5. 16V–36V to 12V/3A Buck Converter
Through Hole
D1
MBR360
C2
1000µF
16V
L1
33µH
GND
FB
SW
MIC4576-5.0BT
SHDN
VIN
8V to 36V
VOUT
5V/4A
VIN
3
4
2
5
1
C3
470µF
63V
D2
MBR360
L2
33µH
GND
SW
FB
MIC4576-5.0BT
SHDN
VIN
3
2
4
5
1
4
1
2
3
8
U3
LM358
C5
0.01µF
R3
10K
R1
0.1Ω
C1
470µF
63V
C4
1000µF
16V
R2
0.1Ω
C1, C3 Nichicon UPL1J471MRH, ESR = 0.039Ω
C2, C4 Nichicon UPL1C102MPH, ESR = 0.047Ω
D1, D2 Motorola MBR360
L1, L2
Coiltronics PL52C-33-1000, DCR = 0.036
R1, R2 KRL
SP-1-A1-0R100J
U3
National
LM358
U1
U2
VIN
Figure 6. Parallel Switching Regulators



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