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MIC4574 Datasheet(PDF) 6 Page - Micrel Semiconductor

Part # MIC4574
Description  200kHz Simple 0.5A Buck Voltage Regulator
PDF  6 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC4574 Datasheet(HTML) 6 Page - Micrel Semiconductor

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April 1998•
4-97
MIC4574
Micrel
4
C1
68µF
35V
D1
MBRS130LT3
C2
470µF
16V
L1
100µH
SGND
FB
SW
MIC4574-3.3BWM
SHDN
6V to 24V
3.3V/0.5A
VIN
C1 Sanyo
35CV168GX, ESR = 0.34
Ω
C2 Sanyo
16CV470GX, ESR = 0.17
Ω
D1 Motorola
MBRS130LT3
L1
Coilcraft
DO3316P-104, DCR = 0.23
Ω
PGND
46
3
12
5
10
Figure 7. 6V–24V to 3.3V/0.5A Buck Converter
Low-Cost Surface Mount
C1
68µF
35V
D1
MBRS130LT3
C2
470µF
16V
L1
100µH
SGND
FB
SW
MIC4574-5.0BWM
SHDN
8V to 24V
5V/0.5A
VIN
C1 Sanyo
35CV168GX, ESR = 0.34
Ω
C2 Sanyo
16CV470GX, ESR = 0.17
Ω
D1 Motorola
MBRS130LT3
L1
Coilcraft
DO3316P-104, DCR = 0.23
Ω
PGND
46
3
12
5
10
Figure 8. 8V–24V to 5V/0.5A Buck Converter
Low-Cost Surface Mount
C1
47µF
50V
D1
SS16
C2
470µF
16V
L1
220µH
SGND
FB
SW
MIC4574BWM
SHDN
16V to 24V
12V/0.5A
VIN
R2
13.0k
1%
R1
1.50k
1%
C1 Nichicon
UUX1H470MNT1GS, ESR = 0.4
Ω
C2 Sanyo
16CV470GX, ESR = 0.17
Ω
D1 General Instruments SS16
L1
Coilcraft
DO3316-224, DCR = 0.53
Ω
PGND
3
12
6
4
10
5
Figure 9. 16V–24V to 12V/0.5A Buck Converter
Low-Cost Surface Mount
C1
10µF
35V
D1
C2
330µF
6.3V
L1
100µH
SGND
FB
SW
MIC4574BWM
SHDN
6V to 24V
3.3V/0.5A
VIN
R2
2.49k
1%
R1
1.50k
1%
C1 AVX
TPSD106M035R0300, ESR = 0.3
Ω
C2 AVX
TPSE337M006R0100, ESR = 0.1
Ω
D1 Motorola
MBRS130LT3
L1
Coiltronics CTX100-2P, DCR = 0.541
Ω
PGND
3
12
6
4
10
5
C3
3300pF
MBRS130LT3
Figure 4. 6V–24V to 3.3V/0.5A Buck Converter
Low-Profile Surface Mount
C1
10µF
35V
D1
C2
220µF
10V
L1
100µH
SGND
FB
SW
MIC4574BWM
SHDN
8V to 24V
5V/0.5A
VIN
R2
3.01k
1%
R1
1.00k
1%
C1 AVX
TPSD106M035R0300, ESR = 0.3
Ω
C2 AVX
TPSE227M010R0100, ESR = 0.1
Ω
D1 Motorola
MBRS130LT3
L1
Coiltronics CTX100-2P, DCR = 0.541
Ω
PGND
3
12
6
4
10
5
C3
3300pF
MBRS130LT3
Figure 5. 8V–24V to 5V/0.5A Buck Converter
Low-Profile Surface Mount
C1
10µF
50V
D1
SS16
C2
68µF
20V
L1
250µH
SGND
FB
SW
MIC4574BWM
SHDN
16V to 24V
12V/0.5A
VIN
R2
13.0k
1%
R1
1.50k
1%
C1 Tokin
C55Y5U1H106Z
C2 AVX
TPSE686M020R0150, ESR = 0.15
Ω
D1 General Instruments SS16
L1
Coiltronics CTX250-4P, DCR = 0.434
Ω
PGND
3
12
6
4
10
5
C3
3300pF
Figure 6. 16V–24V to 12V/0.5A Buck Converter
Low-Profile Surface Mount



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