TA78L20F

The TA78L20F is designed as 3-terminal positive voltage regulator.

TA78L20F has six features. (1)Best suited to power supply for TTL/CMOS. (2)No external part needed. (3)Built-in thermal protective circuit. (4)Built-in short-circuit current limiting. (5)Max output current 150mA. (6)Packaged in power mini. Those are all the main features.

Some absolute maximum ratings of TA78L20F have been concluded into several points as follow. (1)Its input voltage would be 40V. (2)Its power dissipation would be 500mW. (3)Its operating temperature range would be from -30°C to 75°C. (4)Its storage temperature range would be from -55°C to 150°C. (5)Its operating junction temperature range would be from -30°C to 150°C. (6)Its thermal resistance would be 250°C/W. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics about TA78L20F are concluded as follow. (1)Its output voltage would be min 19V and typ 20V and max 21V. (2)Its line regulation would be typ 33mV and max 330mV at 23.5V<=Vin<=35V and it would be typ 28mV and max 285mV at 24V<=Vin<=35V. (3)Its load regulation would be typ 33mV and max 180mV at 1.0mA<=Iout<=100mA and it would be typ 17mV and max 90mV at 1.0mA<=Iout<=40mA. (4)Its output voltage would be min 18.6V and max 21.4V. (5)Its quiescent current would be typ 3.3mA and max 6.5mA at Tj=25°C and it would be max 6.0mA at Tj=125°C. (6)Its quiescent current change would be max 1.5mA. (7)Its output noise voltage would be typ 170uVrms. (8)Its long term stability would be typ 49mV/1.0kh. (9)Its ripple rejection ratio would be min 31dB and typ 37dB. (10)Its dropout voltage would be typ 1.7V. (11)Its average temperature coefficient of output voltage would be typ -1.7mV/°C. And so on. If you have any question or suggestion or want to konw more information about this TA78L20F please contact us for more details. Thank you!