Anterwell Technology Ltd.
Large Original stock of IC Electronics Components, Transistors, Diodes etc.
High Quality, Reasonable Price, Fast Delivery.
Product Details:
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Supply Voltage: | 45V | Output Switch Voltage: | 65V |
---|---|---|---|
Output Switch Current (Note 2): | 6.0A | Power Dissipation: | Internally Limited |
Storage Temperature Range: | −65˚C To +150˚C | ||
High Light: | multi emitter transistor,silicon power transistors |
Features
♦ Requires few external components
♦ NPN output switches 3.0A, can stand off 65V
♦ Wide input voltage range: 3.5V to 40V
♦ Current-mode operation for improved transient response, line regulation, and current limit
♦ 52 kHz internal oscillator
♦ Soft-start function reduces in-rush current during start-up ♦ Output switch protected by current limit, under-voltage lockout, and thermal shutdown
Typical Applications
♦ Simple boost regulator
♦ Flyback and forward regulators
♦ Multiple-output regulator
General Description
The LM1577/LM2577 are monolithic integrated circuits that provide all of the power and control functions for step-up (boost), flyback, and forward converter switching regulators. The device is available in three different output voltage versions: 12V, 15V, and adjustable
Requiring a minimum number of external components, these regulators are cost effective, and simple to use. Listed in this data sheet are a family of standard inductors and flyback transformers designed to work with these switching regulators.
Included on the chip is a 3.0A NPN switch and its associated protection circuitry, consisting of current and thermal limiting, and undervoltage lockout. Other features include a 52 kHz fixed-frequency oscillator that requires no external components, a soft start mode to reduce in-rush current during start-up, and current mode control for improved rejection of input voltage and output load transients.
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