UC2577TDTR-ADJG3

Conv DC-DC Single Step Up 3V to 40V 6Pin5+Tab TO-263 T/R

DESCRIPON

The UC2577-ADJ device provides all the active functions necessary to implement step-up boost, flyback, and forward converter switching regulators. Requiring only a few components, these simple regulators efficiently provide up to 60V as a step-up regulator, and even higher voltages as a flyback or forward converter regulator.

FEATURES

• Requires Few External Components

• NPN Output Switches 3.0A, 65Vmax

• Extended Input Voltage Range: 3.0V to 40V

• Current Mode Operation for Improved Transient Response, Line Regulation, and Current Limiting

• Soft Start Function Provides Controlled Startup

• 52kHz Internal Oscillator

• Output Switch Protected by Current Limit, Undervoltage Lockout and Thermal Shutdown

• Improved Replacement for LM2577-ADJ Series

TYPICAL APPLICATIONS

• Simple Boost and Flyback Converters

• SEPIC Topology Permits Input Voltage to be Higher or Lower than Output Voltage

• Transformer Coupled Forward Regulators

• Multiple Output Designs