3509 Просмотр технического описания (PDF) - Linear Technology
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3509 Datasheet PDF : 24 Pages
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LT3509
TYPICAL APPLICATIONS
VIN
6.5V TO 16V
(TRANSIENT TO 60V)
VOUT
5V
0.7A
6.8μH
52.3k
10μF
2MHz, 5V and 3.3V Outputs
2.2μF
0.1μF
VIN
BOOST1
BD
BOOST2
SW1
SW2
MBRM140
LT3509
DA1
DA2
FB1
FB2
RUN/SS1 RUN/SS2
10k
SYNC RT GND
22nF
16.9k
0.1μF 4.7μH
MBRM140
31.6k
22nF
10k
VOUT
3.3V
0.7A
10μF
fSW = 2MHz
3509 TA02
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PART NUMBER DESCRIPTION
COMMENTS
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DFN-10
LT1976/
LT1977
60V, 1.2A (IOUT), 200/500kHz, High Efficiency Step-Down
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VIN: 3.3V to 60V, VOUT = 1.20V, IQ = 100μA, ISD < 1μA, TSSOP16E
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LT3434/
LT3435
60V, 2.4A (IOUT), 200/500kHz, High Efficiency Step-Down
DC/DC Converter with Burst Mode Operation
VIN: 3.3V to 60V, VOUT = 1.20V, IQ = 100μA, ISD < 1μA, TSSOP16E
Package
LT3437
60V, 400mA (IOUT), MicroPower Step-Down DC/DC Converter
with Burst Mode Operation
VIN: 3.3V to 60V, VOUT = 1.25V, IQ = 100μA, ISD < 1μA, 3mm × 3mm
DFN-10, TSSOP-16E Package
LT3480
36V with Transient Protection to 60V, 2A (IOUT), 2.4MHz, High
VIN: 3.6V to 38V, VOUT = 0.78V, IQ = 70μA, ISD < 1μA, 3mm × 3mm
Efficiency Step-Down DC/DC Converter with Burst Mode Operation DFN-10, MSOP-10E Package
LT3481
34V with Transient Protection to 36V, 2A (IOUT), 2.8MHz, High
VIN: 3.6V to 34V, VOUT = 1.26V, IQ = 50μA, ISD < 1μA, 3mm × 3mm
Efficiency Step-Down DC/DC Converter with Burst Mode Operation DFN-10, MSOP-10E Package
LT3493
36V, 1.4A(IOUT), 750kHz High Efficiency Step-Down DC/DC
Converter
VIN: 36V to 36V, VOUT = 0.8V, IQ = 1.9mA, ISD < 1μA, 2mm × 3mm
DFN-6 Package
LT3500
36V, 40Vmax, 2A, 2.5MHz High Efficiency DC/DC Converter
and LDO Controller
VIN: 3.6V to 36V, VOUT = 0.8V, IQ = 2.5mA, ISD < 10μA, 3mm × 3mm
DFN-10
LT3501
25V, Dual 3A (IOUT), 1.5MHz High Efficiency Step-Down
DC/DC Converter
VIN: 3.3V to 25V, VOUT = 0.8V, IQ = 3.7mA, ISD = 10μA, TSSOP-20E
Package
LT3505
36V with Transient Protection to 40V, 1.4A (IOUT), 3MHz,
High Efficiency Step-Down DC/DC Converter
VIN: 3.6V to 34V, VOUT = 0.78V, IQ = 2mA, ISD < 2μA, 3mm × 3mm
DFN-8, MSOP-8E Package
LT3506/
LT3506A
25V, Dual 1.6A (IOUT), 575kHz,/1.1MHz High Efficiency
Step-Down DC/DC Converter
VIN: 3.6V to 25V, VOUT = 0.8V, IQ = 3.8mA, ISD = 30μA, 5mm × 4mm
DFN-16 TSSOP-16E Package
LT3507
36V 2.5MHz, Triple (2.4A + 1.5A + 1.5A (IOUT)) with LDO
Controller High Efficiency Step-Down DC/DC Converter
VIN: 4V to 36V, VOUT = 0.8V, IQ = 7mA, ISD = 1μA, 5mm × 7mm
QFN-38
LT3508
36V with Transient Protection to 40V, Dual 1.4A (IOUT), 3MHz,
High Efficiency Step-Down DC/DC Converter
VIN: 3.7V to 37V, VOUT = 0.8V, IQ = 4.6mA, ISD = 1μA, 4mm × 4mm
QFN-24, TSSOP-16E Package
LT3510
25V, Dual 2A (IOUT), 1.5MHz High Efficiency Step-Down
DC/DC Converter
VIN: 3.3V to 25V, VOUT = 0.8V, IQ = 3.7mA, ISD = 10μA, TSSOP-20E
Package
LT3684
34V with Transient Protection to 36V, 2A (IOUT), 2.8MHz,
High Efficiency Step-Down DC/DC Converter
VIN: 3.6V to 34V, VOUT = 1.26V, IQ = 850μA, ISD < 1μA, 3mm × 3mm
DFN-10, MSOP-10E Package
LT3685
36V with Transient Protection to 60V, 2A (IOUT), 2.4MHz,
High Efficiency Step-Down DC/DC Converter
VIN: 3.6V to 38V, VOUT = 0.78V, IQ = 70μA, ISD < 1μA, 3mm × 3mm
DFN-10, MSOP-10E Package
24 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
3509fc
LT 0410 REV C • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2007
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