
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, IOUT 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, IOUT to 250mA, IQ = 10μA, 8-Pin MSOP
LTC1504A
Monolithic Synchronous Step-Down Switching Regulator
Low Cost, Voltage Mode IOUT to 500mA, VIN 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, IOUT to 600mA,
Low Supply Voltage Range: 2.5V to 6V
LTC1627
Monolithic Synchronous Step-Down Switching Regulator
Constant Frequency, IOUT to 500mA, Secondary Winding
Regulation, VIN from 2.65V to 8.5V
LTC1701
Monolithic Current Mode Step-Down Switching Regulator
Constant Off-Time, IOUT to 500mA, 1MHz Operation,
VIN from 2.5V to 5.5V
LTC1707
Monolithic Synchronous Step-Down Switching Regulator
1.19V VREF Pin, Constant Frequency, IOUT to 600mA,
VIN from 2.65V to 8.5V
LTC1772
Low Input Voltage Current Mode Step-Down DC/DC Controller
550kHz, 6-Pin SOT-23, IOUT Up to 5A, VIN from 2.2V to 10V
LTC1877
High Efficiency Monolithic Step-Down Regulator
550kHz, MS8, VIN Up to 10V, IQ = 10μA, IOUT to 600mA at VIN = 5V
LTC1878
High Efficiency Monolithic Step-Down Regulator
550kHz, MS8, VIN Up to 6V, IQ = 10μA, IOUT to 600mA at VIN = 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
VOUT
3.3V
0.5A
CIN***
10
μF
CER
20pF
887k
COUT**
22
μF
CER
47pF
4.7
μH*
LTC3404
RUN
ITH
VFB
GND
8
7
6
5
1
2
3
4
PLL LPF
SYNC/MODE
VIN
SW
VIN
2.7V TO 6V
3404 TA06
280k
*
**
***
TOKO D52LC A914BYW-4R7M
TAIYO-YUDEN CERAMIC JMK325BJ226MM
TAIYO-YUDEN CERAMIC LMK325BJ106MN
VOUT CONNECTED TO VIN FOR 2.7V < VIN < 3.3V
VOUT
2.5V
0.6A
CIN***
10
μF
CER
20pF
887k
COUT**
22
μF
CER
47pF
4.7
μH*
LTC3404
RUN
ITH
VFB
GND
8
7
6
5
1
2
3
4
PLL LPF
SYNC/MODE
VIN
SW
LTC1540
GND
V–
IN+
IN–
8
7
6
5
1
2
3
4
OUT
V+
REF
HYS
VIN
2.7V TO 4.2V
3404 TA08
412k
44.2k
1%
1.58M
1%
1.18M
1%
0.01
μF
0.1
μF
10k
2.37M
1%
*
**
***
TOKO D52LC A914BYW-4R7M
TAIYO-YUDEN CERAMIC JMK325BJ226MM
TAIYO-YUDEN CERAMIC LMK325BJ106MN