LM5002MA

TEXAS INSTRUMENTS  LM5002MA  直流-直流开关升压, 反激, 稳压器, 可调, 3.1V-75V输入, 1.26V-75V输出, 0.5A输出, SOIC-8

The is a 0.5A Non-synchronous Current-mode Switch-mode Regulator features all of the functions necessary to implement efficient high voltage Boost, Flyback, SEPIC and Forward converters, using few external components. This easy to use regulator integrates a 75 Volt N-channel MOSFET with a 0.5 Amp peak current limit. Current mode control provides inherently simple loop compensation and line-voltage feed-forward for superior rejection of input transients. The switching frequency is set with a single resistor and is programmable up to 1.5MHz. The oscillator can also be synchronized to an external clock. Additional protection features includes current limit, thermal shutdown, under-voltage lockout and remote shutdown capability.

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Integrated high voltage bias regulator

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Adjustable output voltage

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1.5% Output voltage accuracy

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Current mode control with selectable compensation

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Wide bandwidth error amplifier

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Integrated current sensing and limiting

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Integrated slope compensation

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85% Maximum duty cycle limit

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Single resistor oscillator programming

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Oscillator synchronization capability

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Enable/under-voltage lockout UVLO Pin

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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.