LM2577T-ADJ

TEXAS INSTRUMENTS  LM2577T-ADJ  直流-直流开关升压反激稳压器, 可调, 3.5V-40V输入, 1.23V-15V输出, 3A输出, TO-220-5

The is a SIMPLE SWITCHER® low component count Step-up Voltage Regulator provides all of the power and control functions for step-up boost, flyback and forward converter switching regulators. This regulator is available in adjustable voltage version and requiring a minimum number of external components. This monolithic integrated circuit voltage regulator associated protection circuitry, consisting of current and thermal limiting and under-voltage lockout. Other features includes a 52kHz 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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Requires few external components

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NPN output switches 3A can stand-off 65V

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Current-mode operation for improved transient response, line regulation and current limit

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Soft-start function reduces in-rush current during start-up

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Output switch protected by current limit, under-voltage lockout and thermal shutdown

This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.