Texas Instruments LM78L12ACM/NOPB

Pwr Sply Func, Voltage Regulator, Positive Voltage Out, SOIC, IS 3mA, PD

Linear Voltage Regulator IC; Voltage Regulator Type:Fixed Positive Linear; Output Voltage Max:12V; Output Current Max:140mA; Supply Voltage Max:35V; Package/Case:8-NSOIC; No. of Pins:8; Leaded Process Compatible:Yes ;RoHS Compliant: Yes

V REG, LINEAR, 12V, SMD; Voltage Regulator Type:3-Terminal Fixed Positive; Voltage, Input Max:27V; Voltage, Output Max:12V; Max Output Current:0.1A; Percentage Accuracy:5%; No. of Outputs:1; Voltage, Supply Min:14.5V; Voltage, Supply Max:27V; Termination Type:SMD; Case Style:NSOIC; No. of Pins:8; Operating Temperature Range:0°C to +125°C

The LM78LXX series of three terminal positive regulators is available with several fixed output voltages making them useful in a wide range of applications. When used as a zener diode/resistor combination replacement, the LM78LXX usually results in an effective output impedance improvement of two orders of magnitude, and lower quiescent current. These regulators can provide local on card regulation, eliminating the distribution problems associated with single point regulation. The voltages available allow the LM78LXX to be used in logic systems, instrumentation, HiFi, and other solid state electronic equipment. The LM78LXX is available in the plastic TO-92 (Z) package, the plastic SO-8 (M) package and a chip sized package (8-Bump micro SMD) using National's micro SMD package technology. With adequate heat sinking the regulator can deliver 100mA output current. Current limiting is included to limit the peak output current to a safe value. Safe area protection for the output transistors is provided to limit internal power dissipation. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown circuit takes over preventing the IC from overheating.