Published:2011/7/11 6:13:00 Author:Lucas | Keyword: control circuit, main features , pin , DC-DC circuit , power supply monitor | From:SeekIC
μA78S40 switching regulator control circuit
It is composed of 1.3V reference voltage, oscillator, current limit circuit, error amplifier, switching transistor, switching diode and operational amplifier; it may constitute boost, buck and switching regulator; supply voltage range is 2.5 ~ 40V; output voltage range is 1.3 ~ 40V; the maximum power diode reverse voltage is 40V; maximum reference current is 10mA; the maximum current flowing power diode and transistoris 1.5A; plastic power is 1.5W, ceramic sealing is 1.0W; μA78S40M operating temperature is -55 ~ +125 ℃, μA78S40C is 0 ~ +70 ℃.
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