MIC4575 Micrel Semiconductor, MIC4575 Datasheet - Page 6

• Manufacturer Part Number: MIC4575
• Description: 200kHz Simple 1A Buck Voltage Regulator
• Manufacturer: Micrel Semiconductor

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