LTC1266 Linear Technology, LTC1266 Datasheet - Page 18

• Manufacturer Part Number: LTC1266
• Description: Synchronous Regulator Controller for N- or P-Channel MOSFETs
• Manufacturer: Linear Technology

LTC1266
LTC1266-3.3/LTC1266-5
TYPICAL APPLICATIO S
18
**
*
DALE LPT4545-A002
COILTRONICS CTX20-4
MMBT2222ALT1
C
200pF
V
Figure 13. All N-Channel 5V to 3.3V/5A Converter with Drivers Powered from External PWR V
T
IN
+ 4.5V TO 18V
(V
IN (MIN)
PWR V
BINH
R
1k
*
BINH
COILTRONICS CTX0212801
C
C
3300pF
= 3.5V IF I
C
IN
4.3V TO 10V
C
180pF
T
V
IN
LOAD
+
Figure 12. 5V to 12V/500mA High Efficiency Boost Regulator
0.1 F
1
2
3
4
5
6
7
8
R
470
< 100mA
C
U
C
3300pF
TDRIVE
PWR V
PINV
BINH
V
C
I
SENSE
TH
C
1 F
IN
T
LTC1266
IN
–
1000pF
(Layout Assist Schematics)
1
2
3
4
5
6
7
8
SENSE
BDRIVE
+
TDRIVE
PWR V
PINV
BINH
V
C
I
SENSE
TH
LB
IN
T
PGND
SGND
SHDN
LB
OUT
V
LTC1266-3.3
FB
IN
C
100 F
20V
+
IN
–
1000pF
IN
16
15
14
13
12
11
10
9
SENSE
BDRIVE
LB
PGND
SGND
SHDN
LB
OUT
NC
0.068
IN
1M
1M
+
16
15
14
13
12
11
10
9
SHUTDOWN
20 H
L*
180k
100k
Q1**
Si9410DY
Si9410DY
1N4148
Si9410DY
MBRS130LT3
L*
5 H
R
0.02
SHUTDOWN
SENSE
D1
(V
IN(MIN)
D1
MBRS140T3
LTC1266 • F12
+
100pF
4V TO PWR V
= 3.5V IF I
C
220 F
10V
2
V
3.3V
5A
OUT
OUT
13.7k
1%
118k
1%
+
V
IN
LTC1266 • F13
IN
LOAD
C
100 F
20V
2
– 4.5V
IN
+
IN
< 2.5A)
Supply
C
100 F
20V
V
12V/500mA
0UT
OUT