LT3573EMSE(RevB) 查看數據表（PDF） - Linear Technology
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LT3573EMSE Datasheet PDF : 26 Pages
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LT3573
Typical Application
VIN
9V TO 30V
9V to 30VIN, +5V/–5VOUT Isolated Flyback Converter
C1
10µF
R1
357k
R2
51.1k
VIN
SHDN/UVLO
TC
RILIM
SS
VC
LT3573
RFB
RREF
SW
GND TEST BIAS
T1
3:1:1:1
D1
C6
0.22µF
R8
2k
L1A
63µH
L1B
7µH
D4
R3
80.6k
L1C
7µH
D2
R4
6.04k
VOUT +
+5V, 350mA
C5
47µF
COM
C6
47µF
VOUT –
–5V, 350mA
R5
R6
28.7k 10k
R7
23.7k
C2
C3
10nF
2700pF
C4
4.7µF
D3
L1D
7µH
*OPTIONAL THIRD
WINDING FOR
>24V OPERATION
T1: WÜRTH ELEKTRONIK 750310564
3573 TA11
Related Parts
PART NUMBER
DESCRIPTION
COMMENTS
LT1424-5
Isolated Flyback Switching Regulator
5V Output Voltage, No Optoisolator Required
LT1424-9
Isolated Flyback Switching Regulator
9V Output, Regulation Maintained Under Light Loads
LT1425
Isolated Flyback Switching Regulator with No
External Power Devices
No Optoisolator or “Third Winding” Required, Up to 6W Output
LTC®1624
LT1725
Current Mode DC/DC Controller
General Purpose Isolated Flyback Controller
300kHz Operating Frequency; Buck, Boost, SEPIC Topologies;
VIN Up to 36V, SO-8 Package
No Optoisolator Required, VIN and VOUT Limited Only by External Power
Components
LT1737
High Power Isolated Flyback Controller
No Optoisolator or “Third Winding” Required, Up to 50W Output
LTC1871/LTC1871-1, Wide Input Range, No RSENSE™ Current Mode
LTC1871-7
Flyback, Boost and SEPIC Controller
Adjustable Switching Frequency, 2.5V ≤ VIN ≤ 36V, Optional Burst Mode®
Operation at Light Load
LTC1872, LTC1872B SOT-23 Constant-Frequency Current Mode Boost 550kHz Switching Frequency, 2.5V to 9.8V VIN Range
DC/DC Controller
LT1950
Current Mode PWM Controller
Controller for Forward, Boost, Flyback and SEPIC Converters from 30W to 300W
LTC3803/LTC3803-5 200kHz Flyback DC/DC Controller
LTC3805/LTC3805-5 Adjustable Frequency Flyback Controller
LTC3806
Synchronous Flyback Controller
VIN and VOUT Limited Only by External Components
VIN and VOUT Limited Only by External Components
High Efficiency (89%); Multiple Output with Excellent Cross Regulation
LT3825
LT3837
LTC3872
LTC3873/LTC3873-5
Isolated No-Opto Synchronous Flyback Controller
Isolated No-Opto Synchronous Flyback Controller
No RSENSE Boost Controller
No RSENSE Constant-Frequency Boost/Flyback/
SEPIC Controller
VIN 16V to 75V Limited by External Components, Up to 80W, Current Mode Control
VIN 4.5V to 36V Limited by External Components, Up to 60W, Current Mode Control
550kHz Fixed Frequency, 2.75V ≤ VIN ≤ 9.8V, ThinSOT™ or DFN Package
VIN and VOUT Limited by External Components, 200kHz Frequency, ThinSOT or
DFN Package
Burst Mode is a registered trademark of Linear Technology Corporation. No RSENSE and ThinSOT are trademarks of Linear Technology Corporation.
3573fb
26 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LT 1009 REV B • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2008
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