Datasheet

24
LTC1625
 LINEAR TECHNOLOGY CORPORATION 1998
1625f LT/TP 1298 4K • PRINTED IN USA
PART NUMBER DESCRIPTION COMMENTS
LTC1435A High Efficiency Synchronous Step-Down Controller Optimized for Low Duty Cycle Battery to CPU Power Applications
LTC1436A-PLL High Efficiency Low Noise Synchronous Step-Down Controller PLL Synchronization and Auxiliary Linear Regulator
LTC1438 Dual High Efficiency Step-Down Controller Power-On Reset and Low-Battery Comparator
LTC1530 High Power Synchronous Step-Down Controller SO-8 with Current Limit, No R
SENSE
Saves Space, Fixed
Frequency Ideal for 5V to 3.3V
LTC1538-AUX Dual High Efficiency Step-Down Controller 5V Standby Output and Auxiliary Linear Regulator
LTC1649 3.3V Input High Power Step-Down Controller 2.7V to 5V Input, 90% Efficiency, Ideal for 3.3V to 1.xV – 2.xV
Up to 20A
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear-tech.com
3.3V/1.8A Fixed Output
+
C
IN
: AVX TPSD156M035R0300
C
OUT
: AVX TPSD107M010R0100
L1: SUMIDA CDRH125-270MC
C
SS
0.1µF
R
C
10k
C
C1
1nF
C
C2
100pF
C
IN

15µF
35V
×2
V
IN

5V TO 28V
V
OUT

3.3V
1.8A
M2
1/2 Si4936DY
D1
MBRS140T3
M1
1/2 Si4936DY
C
VCC
4.7µF
1625 TA07
OPEN
C
B
0.1µF
D
B
CMDSH-3
L1
27µH
+
C
OUT

100µF
10V
0.1Ω
×2
+
V
IN
TK
EXTV
CC
LTC1625
SYNC
V
PROG
SW
TG
BOOST
INTV
CC
BG
RUN/SS
FCB
I
TH
SGND
V
OSENSE
PGND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
TYPICAL APPLICATION
U