LTC1147 Linear Technology, LTC1147 Datasheet - Page 14

• Manufacturer Part Number: LTC1147
• Description: High Efficiency Step-Down Switching Regulator Controllers
• Manufacturer: Linear Technology

LTC1147-3.3
LTC1147-5/LTC1147L
TYPICAL APPLICATIO S
14
C
300pF
T
R
1k
C
C
3300pF
C
**
*
SUMIDA CDR74-221
IRC LRC-LR2010-01-R068-F
1
2
3
4
C
120pF
T
V
C
I
SENSE
TH
IN
T
LTC1147L
Precision Constant Current Source
–
0.01 F
0.1 F
R
1k
C
C
3300pF
C
SENSE
PDRIVE
SHDN
(V
GND
**
FB
*
+
SUMIDA CDR74B-100LC
IRC LRC-LR2010-01-R068-F
)
U
1
2
3
4
8
7
6
5
V
C
I
SENSE
TH
IN
T
LTC1147L-3.3
3.3V Low Dropout High Efficiency Regulator
–
0.1 F
100pF
SENSE
PDRIVE
0.01 F
SHDN
GND
Si3455DV
L*
220 H
R
0.22
SENSE
+
8
7
6
5
**
MBRS130LT3
SHUTDOWN
D1
R1
1.2k
R2
6.8k
+
LTC1147 • F09
10V TO 14V
C
100 F
16V
AVX
+
V
V
OUT
OUT
IN
C
33 F
25V
IN
Si9433DY
L*
10 H
R
0.068
SENSE
**
MBRS130LT3
1.0
0.8
0.4
0.2
0.6
0
0
D1
V
+
IN
= 12.6V
I
OUT
2
C
100 F
10V
AVX
OUT
LTC1147 • F08
3.5V TO 12V
vs V
+
V
IN
OUT
4
V
V
3.3V/1.25A
OUT
OUT
C
47 F
16V
IN
For Figure 9
(V)
6
8
LTC1147 F10
10