LTC1266IS View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1266IS' PDF : 20 Pages View PDF
LTC1266
LTC1266-3.3/LTC1266-5
TYPICAL APPLICATIO S (Layout Assist Schematics)
VIN
4.3V TO 10V
(VIN (MIN) = 3.5V IF ILOAD < 100mA
0.1µF
+ CIN
100µF
20V
BINH
CT
200pF
CC
3300pF
RC
1k
1 TDRIVE
BDRIVE 16
2 PWR VIN
PGND 15
3 PINV
LBOUT 14
4 BINH
LBIN 13
5
VIN
LTC1266
SGND
12
6 CT
SHDN 11
7
ITH
VFB 10
8 SENSE– SENSE+ 9
1000pF
0.068Ω
1M
1M
*DALE LPT4545-A002
COILTRONICS CTX20-4
**MMBT2222ALT1
L*
20µH
D1
MBRS130LT3
Si9410DY
100pF
127k
1% +
15k
1%
VOUT
12V/500mA
C0UT
100µF
20V
Q1**
180k 1N4148
SHUTDOWN
100k
1266 F12
Figure 12. 5V to 12V/500mA High Efficiency Boost Regulator
18
VIN
4V TO PWR VIN – 4.5V
(VIN(MIN) = 3.5V IF ILOAD < 2.5A)
1µF
PWR VIN
VIN + 4.5V TO 18V
BINH
CT
180pF
CC
3300pF
RC
470Ω
*TOKO 919AS-4R7M
Si9410DY
1 TDRIVE
BDRIVE 16
Si9410DY
2 PWR VIN
PGND 15
3 PINV
14
LBOUT
4 BINH
13
LBIN
5
LTC1266-3.3
VIN
SGND
12
6 CT
SHDN 11 SHUTDOWN
7
ITH
10
NC
8 SENSE– SENSE+ 9
1000pF
+
D1
MBRS140T3
CIN
100µF
20V
2×
L*
5µH
+
RSENSE
0.02Ω
COUT
220µF
10V
2×
VOUT
3.3V
1266 F13 5A
Figure 13. All N-Channel 5V to 3.3V/5A Converter with Drivers Powered from External PWR VIN Supply
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