LT1950 Linear Technology, LT1950 Datasheet - Page 20

• Manufacturer Part Number: LT1950
• Description: Single Switch PWM Controller
• Manufacturer: Linear Technology

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RELATED PARTS
LT1950
PART NUMBER
LT1534
LT1619
LT1681/LT3781
LTC1693
LTC1698
LT1725
LTC1871
LT1910
LTC3440
LTC3704
No R
20
SENSE
is a trademark of Linear Technology Corporation.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
Ultralow Noise 2A Switching Regulator
Low Voltage Current Mode Controller
Dual Transistor Synchronous Forward Controller
High Speed MOSFET Driver
Secondary Synchronous Rectifier Controller
General Purpose Isolated Flyback Controller
Wide Input Range, No R
Protected High Side MOSFET Driver
Micropower Buck-Boost DC/DC Converter
Positive-to-Negative DC/DC Controller
FAX: [phone] www.linear.com
SENSE
TM
Controller
COMMENTS
Reduces Conducted and Radiated EMI, Low Switching Harmonics,
20kHz to 250kHz Switching Frequency
1.9V V
Operation Up to 72V Maximum
1.5A Peak Output Current, 16ns Rise/Fall Time at V
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
Excellent Transient Response
IN
IN
18V, 300kHz Operation, Boost, Flyback, SEPIC
36V, No R
SENSE
Current Mode Operation,
LINEAR TECHNOLOGY CORPORATION 2003
LT/TP 0503 1K • PRINTED IN USA
CC
= 12V, C
sn1950 1950fs
L
= 1nF