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LTC3407A Datasheet(PDF) 22 Page - Linear Technology

Part # LTC3407A
Description  1.25A, 4MHz, Synchronous Step-Down DC/DC Converter
PDF  22 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3407A Datasheet(HTML) 22 Page - Linear Technology

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LTC3565
22
3565fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2009
LT 0312 REV B • PRINTED IN USA
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC3406/LTC3406B
600mA (IOUT), 1.5MHz Synchronous Step-Down DC/DC Converters
96% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.6V,
IQ = 20μA, ISD < 1μA, ThinSOT™
LTC3407A/LTC3407AB
Dual 600mA/800mA (IOUT), 1.5MHz/2.25MHz Synchronous
Step-Down DC/DC Converters
95% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.6V,
IQ = 40μA, ISD < 1μA, MS10E, DFN
LTC3410/LTC3410B
300mA (IOUT), 2.25MHz Synchronous Step-Down DC/DC Converters
95% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.8V,
IQ = 26μA, ISD < 1μA, SC70
LTC3411A
1.25A (IOUT), 4MHz Synchronous Step-Down DC/DC Converter
96% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.8V,
IQ = 60μA, ISD < 1μA, MS10, 3mm × 3mm DFN
LTC3412A
3A (IOUT), 4MHz Synchronous Step-Down DC/DC Converter
96% Efficiency, VIN: 2.25V to 5.5V, VOUT(MIN) = 0.8V,
IQ = 62μA, ISD < 1μA, TSSOP16E, 4mm × 4mm QFN
LTC3560
800mA (IOUT), 2.25MHz Synchronous Step-Down DC/DC Converter
95% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.6V,
IQ = 16μA, ISD < 1μA, ThinSOT
TYPICAL APPLICATION
1mm Height, 2MHz, Li-Ion to 1.8V Converter
OUTPUT CURRENT (mA)
0.1
1
10
0
40
30
100
1000
100
10000
3565 TA04b
20
10
60
50
80
70
90
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
VOUT = 1.8V
fO = 2MHz
VIN = 3.6V
VOUT = 1.8V
ILOAD = 50mA TO 1.25A
VOUT
100mV/DIV
AC COUPLED
IL
1A/DIV
ILOAD
1A/DIV
3565 TA04c
40μs/DIV
VIN = 3.6V
VOUT = 1.8V
ILOAD = 250mA TO 1.25A
3565 F04d
40μs/DIV
VOUT
100mV/DIV
AC COUPLED
IL
1A/DIV
ILOAD
1A/DIV
Efficiency vs Output Current
PVIN
LTC3565
PGOOD
PGOOD
SW
SVIN
RUN
SYNC/MODE
VFB
ITH
RT
L1
0.9μH
VOUT
1.8V
AT 1.25A
VIN
2.5V
TO 4.2V
GND
R5
100k
C4, 22pF
R4
80.6k
R1
232k
R2
464k
3565 TA04a
R3
13.3k
C3
470pF
C2
10μF
× 2
C1
10μF
C1, C2: TAIYO YUDEN JMK107BJ106MA
L1: FDK MIPW3226DORGM



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