LM7812

1.0  A Positive Voltage Regulators These voltage regulators are monolithic integrated circuits designed as fixed−voltage regulators for a wide variety of applications including local, on−card regulation. These regulators employ internal current limiting, thermal shutdown, and safe−area compensation. With adequate heatsinking they can deliver output currents in excess of 1.0 A. Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents.

2.0  

3.0  Features

4.0  • Output Current in Excess of 1.0 A

5.0  • No External Components Required

6.0  • Internal Thermal Overload Protection

7.0  • Internal Short Circuit Current Limiting

8.0  • Output Transistor Safe−Area Compensation

9.0   • Output Voltage Offered in 1.5%, 2% and 4% Tolerance

10.0        • Available in Surface Mount D2PAK−3, DPAK−3 and Standard 3−Lead Transistor Packages

11.0        • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable

12.0        • These are Pb−Free Devices

IRF4905

Power MOSFET FEATURES

• Dynamic dV/dt rating

• Repetitive avalanche rated

• P-channel

• 175 °C operating temperature

• Fast switching

 • Ease of paralleling

• Simple drive requirements

• Material categorization: for definitions of compliance please see www.vishay.com/doc?99912

Note * This datasheet provides information about parts that are RoHS-compliant and / or parts that are non RoHS-compliant. For example, parts with lead (Pb) terminations are not RoHS-compliant. Please see the information / tables in this datasheet for details DESCRIPTION Third generation power MOSFETs from Vishay provide the designer with the best combination of fast switching, ruggedized device design, low on-resistance and cost-effectiveness. The TO-220AB package is universally preferred for all commercial-industrial applications at power dissipation levels to approximately 50 W. The low thermal resistance and low package cost of the TO-220AB contribute to its wide acceptance throughout the industry.