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LTC1149CS#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
16
LTC1149
LTC1149-3.3/LTC1149-5
TYPICAL APPLICATIO S
U
Figure 10. High Efficiency 8V to 20V Input 3.3V/1A Output Regulator
PGATE
V
IN
V
CC
P-DRIVE
V
CC
C
T
I
TH
SENSE
–
CAP
SHDN2
R-GND
NGATE
PGND
SGND
SHDN1
SENSE
+
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LTC1149-3.3
0.068µF
0.047µF
1N4148 1N4148
3300pF
1k
390pF1µF
1000pF
IRFR024 1N5818
100µF
35V
V
IN
8V TO 20V
L*
68µH
R
SENSE
**
0.1Ω
220µF
6.3V
AVX
1149 F10
V
OUT
3.3V/1A
*COILTRONICS CTX02-11932
**DALE WSC-1/2-0.1
IRFR9024
0V = NORMAL
>2V = SHUTDOWN
+
+
+
Figure 11. High Efficiency 8V to 20V Input 3.3V/3A Output Regulator
PGATE
V
IN
V
CC
PDRIVE
V
CC
C
T
I
TH
SENSE
–
CAP
SHDN2
RGND
NGATE
PGND
SGND
SHDN1
SENSE
+
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LTC1149-3.3
0.068µF
0.047µF
1N4148 1N4148
3300pF
1k
470pF3.3µF
1000pF
IRFZ34 1N5818
220µF
35V
V
IN
8V TO 20V
L*
33µH
R
SENSE
**
0.033Ω
220µF
6.3V × 2
AVX
1149 F11
V
OUT
3.3V/3A
*COILTRONICS CTX33-4-KM
**KRL SL-1-C1-0R033J
IRF9Z34
SHUTDOWN
100Ω
100Ω
+
+
+
17
LTC1149
LTC1149-3.3/LTC1149-5
Figure 12. Ultra Wide Input Range (5.5V to 25V) High Efficiency 5V Regulator
TYPICAL APPLICATIO S
U
PGATE
V
IN
V
CC
PDRIVE
V
CC
C
T
I
TH
SENSE
–
CAP
SHDN2
RGND
NGATE
PGND
S-GND
SHDN1
SENSE
+
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LTC1149-5
0.068µF
0.047µF
1N4148 1N4148
3300pF
1k
220pF1µF
1000pF
Si9410DY 1N5818
220µF
35V
V
IN
5.5V TO 25V
L*
33µH
R
SENSE
**
0.05Ω
220µF
10V × 2
AVX
1149 F12
V
OUT
5V/2A
*COILTRONICS CTX33-4 Kool Mµ
**KRL SL-1-C1-0R050J
Si9435DY
SHUTDOWN
+
+
+
Figure 13. 250kHz High Efficiency 12V Input 5V/2A Output Regulator
PGATE
V
IN
V
CC
PDRIVE
V
CC
C
T
I
TH
SENSE
–
CAP
SHDN2
RGND
NGATE
PGND
SGND
SHDN1
SENSE
+
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LTC1149-5
0.068µF
0.047µF
1N4148 1N4148
3300pF
1k
180pF1µF
1000pF
Si9410DY 1N5818
100µF
25V
V
IN
8V TO 16V
L*
22µH
R
SENSE
**
0.05Ω
220µF
10V
AVX
1149 F13
V
OUT
5V/2A
*DALE LPE-6562-220MB
**KRL SL-1-C1-0R050J
Si9430DY
SHUTDOWN
+
+
+
18
LTC1149
LTC1149-3.3/LTC1149-5
TYPICAL APPLICATIO S
U
Figure 14. High Efficiency 48V Input 5V/2.5A Output Regulator
PGATE
V
IN
V
CC
PDRIVE
V
CC
C
T
I
TH
SENSE
–
CAP
SHDN2
RGND
NGATE
PGND
SGND
SHDN1
SENSE
+
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LTC1149-5
0.068µF
0.047µF
1N4148 1N4148
3300pF
1k
620pF3.3µF
1000pF
IRFZ34 MBR380
100µF
100V
L*
68µH
R
SENSE
**
0.04Ω
220µF
10V
OS-CON
1149 F14
V
OUT
5V/2.5A
*HURRICANE LAB HL-KI168M
**IRC LR2512-01-R040-G
MTD2955
SHUTDOWN
V
IN
48V
0.1µF
100Ω
100Ω
+
+
+
Figure 15. Logic Selectable 5V/2A or 3.3V/2A High Efficiency Regulator
PGATE
V
IN
V
CC
PDRIVE
V
CC
C
T
I
TH
SENSE
–
CAP
SHDN2
RGND
NGATE
PGND
SGND
V
FB
SENSE
+
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LTC1149
0.068µF
0.047µF
1N4148 1N4148
3300pF
1k
390pF1µF
1000pF
RFD14N05SM 1N5818
100µF
35V
V
IN
8V TO 20V
L*
50µH
R
SENSE
**
0.05Ω
220µF
10V × 2
AVX
1149 F15
V
OUT
3.3V/2A
OR 5V/2A
*COILTRONICS CTX50-2-MP
**IRC LR2010-01-R050-G
RFD15P05SM
SHUTDOWN
100pF
R1A
33k
1%
R2
56k
1%
VN2222LL
0V: V
OUT
= 3.3V
5V: V
OUT
= 5V
R1B
43k
1%
+
+
+
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LTC1149CS#TRPBF

Mfr. #:
Buy LTC1149CS#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 5V High Eff Syn Stepdn Sw Reg
Lifecycle:
New from this manufacturer.
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