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LT1424-5

Linear Technology
Part Number LT1424-5
Manufacturer Linear Technology
Description Isolated Flyback Switching Regulator with 5V Output
Published Mar 22, 2005
Detailed Description LT1424-5 Isolated Flyback Switching Regulator with 5V Output FEATURES s s s s DESCRIPTIO s s s No Transformer “Third...
Datasheet PDF File LT1424-5 PDF File

LT1424-5
LT1424-5

Overview
LT1424-5 Isolated Flyback Switching Regulator with 5V Output FEATURES s s s s DESCRIPTIO s s s No Transformer “Third Winding” or Optoisolator Required Designed for Use with 1:1 Ratio Transformers Fixed, Application Specific 5V Output Voltage Regulation Maintained Well into Discontinuous Mode (Light Load) Load Compensation Provides Excellent Load Regulation Available in 8-Pin PDIP and SO Packages Operating Frequency: 285kHz The LT ®1424-5 is a monolithic high power switching regulator specifically designed for the isolated flyback topology.
No “third winding” or optoisolator is required; the integrated circuit senses the isolated output voltage directly from the primary side flyback waveform.
A high current, high efficiency switch is included on the die along with all oscillator, control and protection circuitry.
The LT1424-5 operates with input supply voltages from 3V to 20V and draws only 7mA quiescent current.
It can deliver up to 400mA at 5V with no external power devices.
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