LT3481 查看數據表（PDF） - Linear Technology
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LT3481 Datasheet PDF : 24 Pages
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LT3481
TYPICAL APPLICATION
1.265V Step-Down Converter
VIN
3.6V TO 27V
ON OFF
VIN
RUN/SS
BD
BOOST
4.7μF
13k
105k
330pF
VC
LT3481
SW
RT
PG
BIAS
GND
FB
f = 500kHz
D: DIODES INC. DFLS240L
L: TAIYO YUDEN NP06DZB3R3M
0.47μF
L
3.3μH
D
VOUT
1.265V
2A
47μF
3481 TA10
RELATED PARTS
PART NUMBER
LT1933
LT3437
LT1936
LT3493
LT1976/LT1977
LT1767
LT1940
LT1766
LT3434/LT3435
DESCRIPTION
500mA (IOUT), 500kHz Step-Down Switching
Regulator in SOT-23
60V, 400mA (IOUT), MicroPower Step-Down
DC/DC Converter with Burst Mode
36V, 1.4A (IOUT), 500kHz High Efficiency
Step-Down DC/DC Converter
36V, 1.2A (IOUT), 750kHz High Efficiency
Step-Down DC/DC Converter
60V, 1.2A (IOUT), 200kHz/500kHz, High Efficiency
Step-Down DC/DC Converter with Burst Mode
25V, 1.2A (IOUT), 1.1MHz, High Efficiency
Step-Down DC/DC Converter
Dual 25V, 1.4A (IOUT), 1.1MHz, High Efficiency
Step-Down DC/DC Converter
60V, 1.2A (IOUT), 200kHz, High Efficiency
Step-Down DC/DC Converter
60V, 2.4A (IOUT), 200/500kHz, High Efficiency
Step-Down DC/DC Converter with Burst Mode
COMMENTS
VIN: 3.6V to 36V, VOUT(MIN) = 1.2V, IQ = 1.6mA, ISD <1μA, ThinSOT Package
VIN: 3.3V to 80V, VOUT(MIN) = 1.25V, IQ = 100μA, ISD <1μA, DFN Package
VIN: 3.6V to 36V, VOUT(MIN) = 1.2V, IQ = 1.9mA, ISD <1μA, MS8E Package
VIN: 3.6V to 40V, VOUT(MIN) = 0.8V, IQ = 1.9mA, ISD <1μA, DFN Package
VIN: 3.3V to 60V, VOUT(MIN) = 1.20V, IQ = 100μA, ISD <1μA, TSSOP16E Package
VIN: 3.0V to 25V, VOUT(MIN) = 1.20V, IQ = 1mA, ISD <6μA, MS8E Package
VIN: 3.6V to 25V, VOUT(MIN) = 1.20V, IQ = 3.8mA, ISD <30μA, TSSOP16E Package
VIN: 5.5V to 60V, VOUT(MIN) = 1.20V, IQ = 2.5mA, ISD = 25μA, TSSOP16E Package
VIN: 3.3V to 60V, VOUT(MIN) = 1.20V, IQ = 100μA, ISD <1μA, TSSOP16E Package
24 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
3481fb
LT 1008 REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2006
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