Datasheet

LTC1773
20
1773fb
PART NUMBER DESCRIPTION COMMENTS
LTC1622 Low Voltage Current Mode Step-Down DC/DC Controller V
IN
: 2V to 10V, 550kHz, Burst Mode Operation, Synchronizable
LTC1627/LTC1707 Low Voltage, Monolithic Synchronous Step-Down Regulator Low Supply Voltage Range: 2.65V to 8V, I
OUT
to 0.5A
LTC1735 High Efficiency Synchronous Step-Down Switching Controller Burst Mode Operation, 16-Pin Narrow SO, Fault Protection
LTC1735-1 High Efficiency Synchronous Step-Down Switching Controller Output Fault Protection 16-Pin GN, Burst Mode Operation,
Power Good
LTC1771 Low Quiescent Current Step-Down DC/DC Controller V
IN
: 2.8V to 18V, 10µA I
Q
, MS8 Package
LTC1772/B SOT-23 Low Voltage Step-Down Controller 6-Pin SOT-23, 2V ≤ V
IN
≤ 10V, 550kHz
LTC1778 Wide Operating Range/Step-Down Controller, No R
SENSE
V
IN
up to 36V, Current Mode, Power Good
LTC1779 SOT-23 Current Mode Step-Down Converter 250mA Output Current, 2.5V ≤ V
IN
≤ 9.8V, Up to 94% Efficiency
LTC1877 High Efficiency Monolithic Synchronous Step-Down Regulator V
IN
from 2.65V to 10V, 10µA I
Q
, 550kHz, I
OUT
to 600mA,MS8
LTC1878 High Efficiency Monolithic Synchronous Step-Down Regulator V
IN
from 2.65V to 7V, 10µA I
Q
, 550kHz, I
OUT
to 600mA,MS8
LTC3404 1.4MHz Monolithic Synchronous Step-Down Regulator Up to 95% Efficiency, I
OUT
= 600mA at V
IN
= 3.3V
No Schottky Diode Required, 8-Lead MSOP
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2006
LT 1106 REV B • PRINTED IN USA
RELATED PARTS
Figure 16. Dual Output Synchronous Buck Converter
1773 TA04
+
1
2
3
4
5
10
9
8
7
6
R
SENSE
0.050Ω
33pF
200pF
0.1µF
0.1µF
30k
169k
1%
40.2k
1%
V
OUT1
2.5V
1A
V
OUT2
3.3V
500mA
4.5V ≤ V
IN
≤ 5.5V
+
LTC1773
RUN/SS
SYNC/FCB
GND
SENSE
–
V
IN
TG
I
TH
V
FB
BG
SW
L1
10µH
3:1
Si6801DY
C
OUT1
150µF
6.3V
+
C
OUT2
150µF
6.3V
C
IN
150µF
6.3V
C
IN
, C
OUT1
, C
OUT2
: SANYO POSCAP 6TPA150M
R
SENSE
: IRC LR1206-01-R050-F
D1: BAS16
249k
1%
Si2302DS
D1
47k
V
IN
U
TYPICAL APPLICATIO