DESCRIPTION

The YD3843 provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count.

FEATURES

* Optimized for off-line and DC to DC converts

* Low start up current(<1mA)

* Automatic feed forward compensation

* Pulse-by-Pulse current limiting

* Enhanced load response characteristic

* Under-voltage lookout with hysteresis.

* Double pulse Suppression

* High current totem pole output

* Internally trimmed band-gap reference

* 500kHz operation

* Low Ro error amp