MIC4574-3.3BWM Micrel Semiconductor, MIC4574-3.3BWM Datasheet - Page 6

• Manufacturer Part Number: MIC4574-3.3BWM
• Description: 200kHz Simple 0.5A Buck Voltage Regulator
• Manufacturer: Micrel Semiconductor

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