LT1963 series

The LT1963 series is one kind of low dropout regulators optimized for fast transient response.The devices are capable of supplying 1.5A of output current with a dropout voltage of 340mV.Operating quiescent current is 1mA,dropping to <1A in shutdown.Quiescent current is well controlled;it does not rise in dropout as it does with many other regulators.In addition to fast transient response,the LT1963 regulators have very low output noise which makes them ideal for sensitive RF supply applications.Output voltage range is from 1.21V to 20V.The LT1963 regulators are stable with output capacitors as low as 10F.Internal protection circuitry includes reverse battery protection,current limiting, thermal limiting and reverse current protection.The devices are available in fixed output voltages of 1.5V,1.8V,2.5V,3.3V and as an adjustable device with a 1.21V reference voltage.The LT1963 regulators are available in 5-lead TO-220,DD,3-lead SOT-223,8-lead SO,and Exposed Pad 16-lead TSSOP packages.

Features of the LT1963 series are:(1)5-Lead TO-220, DD,3-Lead SOT-223,8-Lead SO and 16-Lead TSSOP packages;(2)no reverse current;(3)reverse battery protection;(4)stable with 10F output capacitor;(5)<1A quiescent current in shutdown;(6)adjustable output from 1.21V to 20V;(7)fixed output voltages: 1.5V,1.8V,2.5V,3.3V;(8)controlled quiescent current in dropout;(9)no protection diodes needed;(10)optimized for fast transient response.

The absolute maximum ratings of the LT1963 series can be summarized as:(1)in pin voltage:±20V;(2)out pin voltage:±20V;(3)input to output differential voltage (note 2):±20V;(4)output short-circuit duration:indefinite;(5)operating junction temperature range:40°C to 125°C;(6)storage temperature range:65°C to 150°C;(7)lead temperature (soldering,10 sec):300°C.If you want to know more information about this part,please download the datasheet in www.seekic.com and www.chinaicmart.com .