24
LTC1775
LINEAR TECHNOLOGY CORPORATION 1999
1775f LT/TP 0500 4K • PRINTED IN USA
PART NUMBER DESCRIPTION COMMENTS
LT1339 High Power Synchronous DC/DC Controller 60V Maximum Input Voltage
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
LTC1625 No R
SENSE
Current Mode Synchronous Step-Down Controller Burst Mode Operation, 16-Lead GN Package
LTC1628 Dual High Efficiency 2-Phase Step-Down Controller Antiphase Drive, Standby 5V and 3.3V LDO, Fault Protection,
V
IN
Up to 36V
LTC1629 PolyPhase
TM
High Efficiency Step-Down Controller Current Mode Ensures Accurate Current Sharing,
Expandable Up to 200A, V
IN
Up to 36V
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
LTC1702 Dual 2-Phase High Frequency, High Efficiency Voltage Mode 500kHz; V
IN
Up to 7V; V
OUT1
, V
OUT2
as Low as 2.x, 1.x,
Synchronous Step-Down Controller I
OUT1
, I
OUT2
as High as 20A; No Sense Resistor Required
LTC1735 High Efficiency Synchronous Step-Down Controller Output Fault Protection, 16-Pin GN Package, 4V ≤ V
IN
≤ 36V
PolyPhase is a trademark of Linear Technology Corporation.
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear-tech.com
2.5V/5A Adjustable Output
C
SS
0.1µF
R
C
10k
C
C1
2.2nF
C
C2
220pF
M1
1/2 FDS8936A
M2
1/2 FDS8936A
C
IN
15µF
35V
×3
V
OUT
2.5V
5A
D1
MBRS140
R2
11k
1%
R1
10k
1%
D
B
CMDSH-3
C
VCC
4.7µF
1775 TA03
V
IN
TK
EXTV
CC
LTC1775
SYNC
V
PROG
SW
TG
BOOST
INTV
CC
BG
RUN/SS
FCB
I
TH
SGND
V
OSENSE
PGND
1
2
3
4
5
6
INTV
CC
OPEN
7
8
16
15
14
13
12
11
10
9
C
B
0.22µF
R
F
1Ω
V
IN
5V TO 25V
L1
6.1µH
+
+
C
F
0.1µF
C
OUT
680µF
4V
×2
+
C
IN
: KEMET T495X156M035AS
C
OUT
: KEMET T510X687K004AS
L1: SUMIDA CDRH127-6R1
TYPICAL APPLICATIO S
U