3412EFE データシートの表示（PDF） - Linear Technology
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3412EFE Datasheet PDF : 20 Pages
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LTC3412
TYPICAL APPLICATIO
2.5V, 2.5A Step-Down Regulator Synchronized to 1.25MHz
PGOOD
C1 22pF X5R
R1 392k
CIN3**
100μF
VIN
2.7V TO 5.5V
RPG
100k
CITH 1000pF X7R RITH
15k
CC 100pF
R2 182k
ROSC 309k
RSS
4.7M
1.25MHz
EXT CLOCK
CSS
470pF X7R
1 SVIN
2
PGOOD
3 ITH
LTC3412
4
VFB
5
RT
6
SYNC/MODE
7 RUN
8
SGND
PVIN 16
15
SW
14
SW
PGND 13
12
PGND
11
SW
SW 10
9
PVIN
CIN1
22μF
X5R 6.3V
L1*
1μH
CIN2
22μF
X5R 6.3V
*TOKO D62CB A920CY-1ROM
**TDK C4532X5R0J107M
3412 TA02
VOUT
2.5V
2.5A
COUT1**
100μF
GND
RELATED PARTS
PART NUMBER
LTC1701/LTC1701B
LTC1772/LTC1772B
LTC1773
DESCRIPTION
700mA (IOUT), 1MHz Step-Down Converter
Constant 550kHz Current Mode Step-Down DC/DC Controller
Constant Frequency 550kHz Step-Down DC/DC Controller
LTC1875
LTC1877
LTC1878
LTC1879
LTC3404
LTC3405A
LTC3406/LTC3406B
1.5A (IOUT), 500kHz Synchronous Step-Down Converter
600mA (IOUT), 500kHz Synchronous Step-Down Converter
600mA (IOUT), 550kHz Synchronous Step-Down Converter
1.2A (IOUT), 550kHz Synchronous Step-Down Converter
600mA (IOUT), 1.4MHz Synchronous Step-Down Converter
300mA (IOUT), 1.5MHz Synchronous Step-Down Converter
600mA (IOUT), 1.5MHz Synchronous Step-Down Converter
LTC3411
1.25A (IOUT), 4MHz Synchronous Step-Down Converter
ThinSOT is a trademark of Linear Technology Corporation.
COMMENTS
VIN = 2.5V to 5V, B Version: Burst Mode Defeat, ThinSOTTM
VIN = 2.5V to 9.8V, 94% Efficiency, 100% Duty Cycle, ThinSOT
VIN = 2.65V to 8.5V, 95% Efficiency, VOUT from 0.8V to VIN,
MSOP-10
VIN = 2.65V to 6V, 95% Efficiency, PLL, SSOP-16
VIN = 2.65V to 10V, 95% Efficiency, MSOP-8
VIN = 2.65V to 6V, 95% Efficiency, MSOP-8
VIN = 2.65V to 10V, 95% Efficiency, SSOP-16
VIN = 2.65V to 6V, 95% Efficiency, MSOP-8
VIN = 2.65V to 6V, 96% Efficiency, ThinSOT Package
VIN = 2.5V to 5.5V, 95% Efficiency, ThinSOT,
B Version: Burst Mode Defeat
VIN = 2.5V to 5.5V, 95% Efficiency, MSOP-10
20 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
3412fb
LT 0707 REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2002
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