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MIC4575 Datasheet(PDF) 6 Page - Micrel Semiconductor

Part # MIC4575
Description  200kHz Simple 1A Buck Voltage Regulator
PDF  12 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC4575 Datasheet(HTML) 6 Page - Micrel Semiconductor

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April 1998•
4-111
MIC4575
Micrel
4
C1
22µF
35V
MBRS130LT3
C2
330µF
6.3V
L1
68µH
GND
FB
MIC4575BU
SW
SHDN
6V to 24V
3.3V/1A
VIN
R2
2.49k
1%
R1
1.50k
1%
C1 AVX
TPSE226M035R0300, ESR = 0.3
Ω
C2 AVX
TPSE337M006R0100, ESR = 0.1
Ω
D1 Motorola
MBRS130LT3
L1
Coiltronics CTX68-4P, DCR = 0.238
Ω
4
2
3
1
5
C3
3300pF
D1
Figure 4. 6V–24V to 3.3V/1A Buck Converter
Low-Profile Surface Mount
C1
22µF
35V
MBRS130LT3
C2
220µF
10V
L1
68µH
GND
FB
MIC4575BU
SW
SHDN
8V to 24V
5V/1A
VIN
R2
3.01k
1%
R1
1.00k
1%
C1 AVX
TPSE226M035R0300, ESR = 0.3
Ω
C2 AVX
TPSE227M010R0100, ESR = 0.1
Ω
D1 Motorola
MBRS130LT3
L1
Coiltronics CTX68-4P, DCR = 0.238
Ω
4
2
3
1
5
C3
3300pF
D1
Figure 5. 8V–24V to 5V/1A Buck Converter
Low-Profile Surface Mount
C1
10µF
50V
D1
SS26
C2
68µF
20V
L1
150µH
GND
FB
MIC4575BU
SW
SHDN
16V to 24V
12V/1A
VIN
R2
13.0k
1%
R1
1.50k
1%
C1 Tokin
C55YU1H106Z
C2 AVX
TPSE686M020R0150, ESR = 0.15
Ω
D1 General Instruments SS26
L1
Coiltronics CTX150-4, DCR = 0.372
Ω
4
2
3
1
5
C3
3300pF
Figure 6. 16V–24V to 12V/1A Buck Converter
Low-Profile Surface Mount
C1
150µF
35V
D1
MBRS130LT3
C2
470µF
16V
L1
68µH
GND
FB
SW
MIC4575-3.3BU
SHDN
6V to 24V
3.3V/1A
VIN
C1 Sanyo
35CV150GX, ESR = 0.17
Ω
C2 Sanyo
16CV470GX, ESR = 0.17
Ω
D1 Motorola
MBRS130LT3
L1
Coilcraft
DO3316P-683, DCR = 0.16
Ω
L1
Bi
HM77-11003, DCR = 0.233
Ω
3
4
2
5
1
Figure 7. 6V–24V to 3.3V/1A Buck Converter
Lower-Cost Surface Mount
C1
150µF
35V
D1
MBRS130LT3
C2
470µF
16V
L1
68µH
GND
FB
SW
MIC4575-5.0BU
SHDN
8V to 24V
5V/1A
VIN
C1 Sanyo
35CV150GX, ESR = 0.17
Ω
C2 Sanyo
16CV470GX, ESR = 0.17
Ω
D1 Motorola
MBRS130LT3
L1
Coilcraft
DO3316P-683, DCR = 0.16
Ω
L1
Bi
HM77-11003, DCR = 0.233
Ω
3
4
2
5
1
Figure 8. 8V–24V to 5V/1A Buck Converter
Lower-Cost Surface Mount
C1
47µF
50V
X2
SS26
C2
470µF
16V
L1
150µH
GND
FB
SW
MIC4575BU
SHDN
16V to 24V
12V/1A
VIN
R2
13.0k
1%
R1
1.50k
1%
C1 Nichicon
UUX1H470MT1GS, ESR = 0.4
Ω
C2 Sanyo
16CV470GX, ESR = 0.17
Ω
D1 General Instruments SS26
L1
Coiltcraft
DO5022P-154, DCR = 0.218
Ω
5
1
4
2
3
Figure 9. 16V–24V to 12V/1A Buck Converter
Lower-Cost Surface Mount
C1
150µF
35V
GND
FB
SW
MIC4575-5.0BT
SHDN
8V to 18V
VIN
C1 Nichicon
UPL1V151MPH
ESR = 0.13
Ω
C2 Nichicon
UPL1C681MPH
ESR = 0.065
Ω
D1 Motorola
1N5819
L1
Coiltronics PL52A-10-500
DCR = 0.045
Ω
1
5
4
2
3
1N5819
D1
C2
680µF
16V
-5V/0.2A
L1
10µH
Figure 10. 8V–18V to –5V/0.2A Buck-Boost Converter
Through Hole



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