LTC1430A
TYPICAL APPLICATI
GTL Terminator
C1
R7
0.1µF 15k
R10 R8
3.3k 130k
C3
220pF
C11
0.068µF
C6
0.01µF
C8 +
22µF
35V
SHDN
R4
51
15 PVCC2
PVCC1 2
14 VCC
G1 1
11 FSET
IFB 13
12
LTC1430A
IMAX
G2
16
C7
8 SHDN
0.1µF 10 COMP
PGND 3
–SENSE 5
9 SS
+SENSE 7
4 SGND
FB 6
R6
10k
D1
MBR0530T1
C10
C16
1µF
0.1µF
R2
3Ω
Q1
Si4410
+ C4 + C5
330
330
6.3V
6.3V
OSCON
OSCON
D1
MBRS340T3
R1
1k
L1
2.7µH
R3
3Ω
Q2
Si4410
C2
680pF
D2
MBRS340T3
+
R5
16.5k
1%
C12
330
6.3V
OSCON
C13 +
330
R9
6.3V
88.7k OSCON
1%
5V
1.5V OUT
+ 330 + 330
6.3V
6.3V
TANT
TANT
ADDITIONAL
DECOUPLING
AT THE LOAD
1430 TA03
RELATED PARTS
PART NUMBER
LTC1142
LTC1148
LTC1149
LTC1159
LTC1266
DESCRIPTION
Current Mode Dual Step-Down Switching Regulator Controller
Current Mode Step-Down Switching Regulator Controller
Current Mode Step-Down Switching Regulator Controller
Current Mode Step-Down Switching Regulator Controller
Current Mode Step-Up/Down Switching Regulator Controller
LTC1267
LTC1649
Current Mode Dual Step-Down Switching Regulator Controller
3.3V Input Synchronous Switching Regulator Controller
COMMENTS
Dual Version of LTC1148
Synchronous, VIN ≤ 20V
Synchronous, VIN ≤ 48V, For Standard Threshold FETs
Synchronous, VIN ≤ 40V, For Logic Threshold FETs
Synchronous N- or P-Channel FETs, Comparator/
Low-Battery Detector
Dual Version of LTC1159
3.3V Input
24 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900q FAX:(408)434-0507 q www.linear-tech.com
1430af, 1430afs LT/TP 0898 4K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1998