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LTC1148CN-5#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
16
LTC1148
LTC1148-3.3/LTC1148-5
114835fd
TYPICAL APPLICATIO S
U
1
2
3
4
5
6
7
14
13
12
11
10
9
8
P-DRIVE
NC
V
IN
C
T
INTV
CC
I
TH
SENSE
–
N-DRIVE
NC
PGND
SGND
SHUTDOWN
V
FB
SENSE
+
LTC1148
1µF
0.01µF
R
SENSE
**
0.033Ω
SHUTDOWN
*L
50µH
IRF7201
D1
MBRS140T3
+
V
IN
8V TO 14V
+
C
OUT
220µF
10V
×2
OS-CON
V
OUT
5V/3A
C
C
3300pF
R
C
220Ω
C
T
390pF
*COILTRONICS CTX50-2-MP
**KRL SL-1-C1-0R033J
LTC1148 • F12
10nF
IRF7204
C
IN
330µF
20V
100pF
R1
10k
1%
R2
30k
1%
()
V
OUT
= 1 +
R2
R1
1.25V
VALUES SHOWN FOR V
OUT
= 5V
+
1
2
3
4
5
6
7
14
13
12
11
10
9
8
P-DRIVE
NC
V
IN
C
T
INTV
CC
I
TH
SENSE
–
N-DRIVE
NC
PGND
SGND
SHUTDOWN
NC
SENSE
+
LTC1148HV-3.3
1µF
1000pF
R
SENSE
**
0.1Ω
SHUTDOWN
*L
50µH
D1
MBRS140T3
1/2 Si4532
1/2 Si4532
+
C
IN
100µF
25V
V
IN
4V TO 18V
+
C
OUT
220µF
10V
OS-CON
V
OUT
3.3V/1A
C
C
3300pF
R
C
1k
C
T
300pF
*COILTRONICS CTX50-4 Kool Mµ CORE
**IRC LR2010-01-R100-G
LTC1148 • F11
+
1
2
3
4
5
6
7
14
13
12
11
10
9
8
P-DRIVE
NC
V
IN
C
T
INTV
CC
I
TH
SENSE
–
N-DRIVE
NC
PGND
SGND
SHUTDOWN
NC
SENSE
+
LTC1148HV-5
1µF
1000pF
R
SENSE
**
0.1Ω
SHUTDOWN
*L
100µH
1/2 Si4532
D1
MBRS140T3
1/2 Si4532
+
C
IN
100µF
25V
V
IN
5.2V TO 18V
+
C
OUT
220µF
10V
AVX
V
OUT
5V/1A
C
C
3300pF
R
C
1k
C
T
390pF
*COILTRONICS CTX100-4 Kool Mµ CORE
**KRL SP-1/2-A1-0R100
LTC1148 • F10
+
Figure 10. 5V/1A High Efficiency Regulator
with Extended Input Voltage Range
Figure 11. High Efficiency 5V to 3.3V/1A Converter
with Extended Input Voltage Range
Figure 12. High Efficiency Adjustable 3A Regulator
17
LTC1148
LTC1148-3.3/LTC1148-5
114835fd
TYPICAL APPLICATIO S
U
1
2
3
4
5
6
7
14
13
12
11
10
9
8
P-DRIVE
NC
V
IN
C
T
INTV
CC
I
TH
SENSE
–
N-DRIVE
NC
PGND
SGND
SHUTDOWN
NC
SENSE
+
LTC1148L-3.3
1µF
1000pF
R
SENSE
**
0.05Ω
SHUTDOWN
*L
25µH
MMSF5N02HD
D1
MBRS140T3
MMSF3P02HD
+
C
IN
100µF
20V
V
IN
3.5V TO 14V
+
C
OUT
220µF
10V
×2
AVX
V
OUT
3.3V/2A
C
C
3300pF
R
C
1k
C
T
270pF
*COILTRONICS CTX25-5 Kool Mµ CORE
**IRC LR2512-01-R050-G
LTC1148 • F13
+
Figure 13. 5V Input Voltage, 3.3V/2A Low Dropout, High
Efficiency Regulator
Figure 14. High Efficiency 5V to 3.3V/4.5A Converter
1
2
3
4
5
6
7
14
13
12
11
10
9
8
P-DRIVE
NC
V
IN
C
T
INTV
CC
I
TH
SENSE
–
N-DRIVE
NC
PGND
SGND
SHUTDOWN
NC
SENSE
+
LTC1148-3.3
0.1
µ
F
1000pF
R
SENSE
**
0.02
Ω
SHUTDOWN
*L
10
µ
H
Si9804DY
D1
MBRS140T3
Si9803DY
+
C
IN
100
µ
F
20V
×
2
V
IN
5V
+
C
OUT
220
µ
F
10V
AVX
×
2
V
OUT
3.3V/4.5A
C
C
3300pF
R
C
470
Ω
C
T
270pF
NPO
*COILTRONICS CTX10-5P
**KRL SP-1-C1-0R020
LTC1148 • F14
1
2
3
4
5
6
7
14
13
12
11
10
9
8
P-DRIVE
NC
V
IN
C
T
INTV
CC
I
TH
SENSE
–
N-DRIVE
NC
PGND
SGND
SHUTDOWN
V
FB
SENSE
+
LTC1148
1µF
1000pF
R
SENSE
**
0.05Ω
1M
*L
50µH
Si4412DY
D1
MBRS140T3
+
V
IN
4V TO 9V
+
C
OUT
220µF
10V
×2
OS-CON
V
OUT
–5V/1.4A
C
C
6800pF
R
C
1k
C
T
560pF
LTC1148 • F15
10nF
Si4431DY
C
IN
220µF
20V
R1
25k
1%
R2
75k
1%
200pF
TP0610L
V
IN
: ACTIVE
0V: SHUTDOWN
*COILTRONICS CTX50-2-MP
**KRL SL-1-C1-0R050J
+
Figure 15. 4V to 9V Input Voltage to –5V/1A Regulator
18
LTC1148
LTC1148-3.3/LTC1148-5
114835fd
TYPICAL APPLICATIO S
U
1
2
3
4
5
6
7
14
13
12
11
10
9
8
P-DRIVE
NC
V
IN
C
T
INTV
CC
I
TH
SENSE
–
N-DRIVE
NC
PGND
SGND
SHUTDOWN
V
FB
SENSE
+
LTC1148
1µF
0.1µF
R
SENSE
**
0.082Ω
SHUTDOWN
L2
50µH
+
V
IN
4V TO 14V
V
OUT
5V/1A
C
C
3300pF
R
C
1k
C
T
390pF
LTC1148 • F16
Si4435DY
C
IN
100µF
20V
100pF
+
220µF*
10V
OS-CON
D1
MBRS140T3
R1
25k
1%
R2
75k
1%
+
C
OUT
220µF
10V
OS-CON
L1
50µH
*LOW ESR REQUIRED
**KRL NP-1A-C1-0R082J
Si4412DY
V
OUT
1N4148
+
Figure 16. 4V to 14V Input Voltage to 5V/1A Regulator with Current Foldback
1
2
3
4
5
6
7
14
13
12
11
10
9
8
P-DRIVE
NC
V
IN
C
T
INTV
CC
I
TH
SENSE
–
N-DRIVE
NC
PGND
SGND
SHUTDOWN
V
FB
SENSE
+
LTC1148
1µF
1000pF
R
SENSE
**
0.05Ω
SHUTDOWN
*L
50µH
NDS9410A
D1
MBRS140T3
+
V
IN
5.2V TO 14V
+
C
OUT
220µF
10V
×2
OS-CON
V
OUT
3.3V/2A
OR 5V/2A
C
C
3300pF
R
C
1k
C
T
390pF
*COILTRONICS CTX50-2-MP
**KRL SL-1-C1-0R050R
LTC1148 • F17
10nF
NDS9435A
C
IN
100µF
20V
100pF
R1B
43k
1%
R2
56k
1%
R1A
33k
1%
VN2222LL
0V: V
OUT
= 3.3V
5V: V
OUT
= 5V
+
Figure 17. Logic Selectable 5V/1A or 3.3V/1A High Efficiency Regulator
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LTC1148CN-5#PBF

Mfr. #:
Buy LTC1148CN-5#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Hi Eff Sync Buck Sw Regs
Lifecycle:
New from this manufacturer.
Delivery:
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