LTC1265 LINER [Linear Technology], LTC1265 Datasheet - Page 15

• Manufacturer Part Number: LTC1265
• Description: 1.2A, High Efficiency Step-Down DC/DC Converter
• Manufacturer: LINER [Linear Technology]

TYPICAL APPLICATIONS
3.5V TO 12.5V
0V: V
5V: V
3300pF
75pF
OUT
OUT
3.5V TO 12.5V
V
3300pF
= 5V
= 3.3V
IN
51pF
1k
V
IN
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
4
3
5
6
7
1k
LB
LB
C
I
SENSE
THR
T
U
V
IN
OUT
IN
4
3
5
6
7
2
LTC1265
1000pF
–
LB
LB
C
I
SENSE
THR
T
Logic Selectable 0V/3.3V/5V 700mA Regulator
V
PWR V
IN
OUT
LTC1265-3.3
SENSE
IN
2
PGND
SGND
SHDN
1000pF
2.5mm Max Height 5V-to-3.3V (500mA)
–
SW
V
1, 13
FB
IN
+
PWR V
SENSE
PGND
SGND
SHDN
14
12
11
10
9
8
N/C
1, 13
SW
IN
V
+
SHDN
14
12
11
10
9
8
0.1 F
†††
SHDN
+
0.1 F
LTC1265/LTC1265-3.3/LTC1265-5
C
68 F
20V
+
IN
*
100pF
MBRS130LT3
C
15 F
10V 2
IN
*
MBRS0520LT1
**
††
0.15
*
MANUFACTURER
COILCRAFT
COILTRONICS
DALE
SUMIDA
33 H
†
R
L1
†††
DALE 593D68X0020E2W
DALE 593D107X0010D2W
IRC LRC2010-01-R15-J
L1 SELECTION
SENSE
**
††
*
††
†
V
AVX TAJB156K010
AVX TAJB226K06
IRC LRC2010-01-R200-J
SUMIDA CLS62-180
SHDN
†
R
0.20
18 H
L1
SENSE
= 0V: V
= 5V: V
††
56.2k
†
OUT
OUT
LTC1265 TA06
+
PART NO.
DO3316-333
CTX33-4
LPT4545-330LA
CD74-330
= 3.3V/5V
= 0V
75k
45.3k
C
22 F
6.3V 2
LTC1265 TA07
OUT
V
3.3V
500mA
OUT
**
+
C
100 F
10V
V
0V/3.3V/5V
700mA
OUT
OUT
**
15