1A Voltage Regulator ICs

1A Voltage Regulators

The 78xx and 79 series of three-terminal positive and negative voltage regulators. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.

TO-220 package
Internal current limiting & thermal shut-down
1A rating subject to sufficient heatsinking

The LM2940 series of 1A (subject to sufficient heatsinking) positive regulator:

Dropout voltage 0.5V typ. (1V max. over the entire temperature range)
Low quiescent current
Designed for automotiver applications, protected against reverse battery connection and 2-battery jumps
Short circuit and thermal overload protection
Supplied in a plastic TO-220 package