LTC3706 Datasheet, PDF (20/20 Pages) Linear Technology – Secondary-Side Synchronous Forward Controller with PolyPhase Capability

LTC3706
RELATED PARTS
PART NUMBER
LT1534
DESCRIPTION
Ultralow Noise 2A Switching Regulator
LT1619
LT1681/LT3781
LT1693
LTC1698
Low Voltage Current Mode Controller
Dual Transistor Synchronous Forward Controller
High Speed MOSFET Driver
Secondary Synchronous Rectifier Controller
LT1725
General Purpose Isolated Flyback Controller
LTC1871
LT1910
LTC3440
LTC3704
Wide Input Range, No RSENSE™ Controller
Protected High Side MOSFET Driver
Micropower Buck-Boost DC/DC Converter
Positive-to-Negative DC/DC Controller
LTC3705
Two-Switch Forward Converter Gate Driver and Controller
LTC3722
Full Bridge Controller
No R_SENSE is a trademark of Linear Technology Corporation.
COMMENTS
Reduces Conducted and Radiated EMI, Low Switching Harmonics,
20kHz to 250kHz Switching Frequency
1.9V ≤ V_IN ≤ 18V, 300kHz Operation, Boost, Flyback, SEPIC
Operation Up to 72V Maximum
1.5A Peak Output Current, 16ns Rise/Fall Time at V_CC = 12V, C_L = 1nF
Use with the LT1950 or LT1681, Isolated Power Supplies,
Contains Voltage Margining, Optocoupler Driver, Synchronization
Circuit with the Primary Side
No Optoisolator Required, Accurate Regulation Without User Trims,
50kHz to 250kHz Switching Frequency, SSOP-16 Package
Operation as Low as 2.5V Input, Boost, Flyback, SEPIC
8V to 48V Supply Range, Protected –15V to 60V Supply Transient
Synchronous, Single Inductor, No Schottky Diode Required
2.5V ≤ V_IN ≤ 36V, No R_SENSE Current Mode Operation,
Excellent Transient Response
Use with LTC3706, Isolated Power Supplies, High Speed Gate Drivers
Synchronous; ZVS Operation; 24-Pin SSOP
20 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
3706fb
LT 0808 REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2005