16
LTC3404
3404fb
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LTC1174/LTC1174-3.3 High Efficiency Step-Down and Inverting DC/DC Converters Monolithic Switching Regulators, I
OUT
to 450mA,
LTC1174-5 Burst Mode Operation
LTC1265 1.2A, High Efficiency Step-Down DC/DC Converter Constant Off-Time, Monolithic, Burst Mode Operation
LTC1474/LTC1475 Low Quiescent Current Step-Down DC/DC Converters Monolithic, I
OUT
to 250mA, I
Q
= 10μA, 8-Pin MSOP
LTC1504A Monolithic Synchronous Step-Down Switching Regulator Low Cost, Voltage Mode I
OUT
to 500mA, V
IN
from 4V to 10V
LTC1622 Low Input Voltage Current Mode Step-Down DC/DC Controller High Frequency, High Efficiency, 8-Pin MSOP
LTC1626 Low Voltage, High Efficiency Step-Down DC/DC Converter Monolithic, Constant Off-Time, I
OUT
to 600mA,
Low Supply Voltage Range: 2.5V to 6V
LTC1627 Monolithic Synchronous Step-Down Switching Regulator Constant Frequency, I
OUT
to 500mA, Secondary Winding
Regulation, V
IN
from 2.65V to 8.5V
LTC1701 Monolithic Current Mode Step-Down Switching Regulator Constant Off-Time, I
OUT
to 500mA, 1MHz Operation,
V
IN
from 2.5V to 5.5V
LTC1707 Monolithic Synchronous Step-Down Switching Regulator 1.19V V
REF
Pin, Constant Frequency, I
OUT
to 600mA,
V
IN
from 2.65V to 8.5V
LTC1772 Low Input Voltage Current Mode Step-Down DC/DC Controller 550kHz, 6-Pin SOT-23, I
OUT
Up to 5A, V
IN
from 2.2V to 10V
LTC1877 High Efficiency Monolithic Step-Down Regulator 550kHz, MS8, V
IN
Up to 10V, I
Q
= 10μA, I
OUT
to 600mA at V
IN
= 5V
LTC1878 High Efficiency Monolithic Step-Down Regulator 550kHz, MS8, V
IN
Up to 6V, I
Q
= 10μA, I
OUT
to 600mA at V
IN
= 3.3V
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
LT 0607 REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2000
TYPICAL APPLICATIO S
U
3- to 4-Cell NiCd/NiMH to 3.3V/0.5A Regulator Using All Ceramic Capacitors
Single Li-Ion to 2.5V/0.5A Regulator with Precision 2.7V Undervoltage Lockout
V
OUT
†
3.3V
0.5A
C
IN
***
10μF
CER
20pF
887k
C
OUT
**
22μF
CER
47pF
4.7μH*
LTC3404
RUN
I
TH
V
FB
GND
8
7
6
5
1
2
3
4
PLL LPF
SYNC/MODE
V
IN
SW
V
IN
2.7V TO 6V
3404 TA06
280k
*
**
***
†
TOKO D52LC A914BYW-4R7M
TAIYO-YUDEN CERAMIC JMK325BJ226MM
TAIYO-YUDEN CERAMIC LMK325BJ106MN
V
OUT
CONNECTED TO V
IN
FOR 2.7V < V
IN
< 3.3V
V
OUT
2.5V
0.6A
C
IN
***
10μF
CER
20pF
887k
C
OUT
**
22μF
CER
47pF
4.7μH*
LTC3404
RUN
I
TH
V
FB
GND
8
7
6
5
1
2
3
4
PLL LPF
SYNC/MODE
V
IN
SW
LTC1540
GND
V
–
IN
+
IN
–
8
7
6
5
1
2
3
4
OUT
V
+
REF
HYS
V
IN
2.7V TO 4.2V
3404 TA08
412k
44.2k
1%
1.58M
1%
1.18M
1%
0.01μF
0.1μF
10k
2.37M
1%
*
**
***
TOKO D52LC A914BYW-4R7M
TAIYO-YUDEN CERAMIC JMK325BJ226MM
TAIYO-YUDEN CERAMIC LMK325BJ106MN
