LM7805CT Voltage Regulator: Feature, Specification, and Datasheet

The LM78XX series of three-terminal regulators is available with several fixed output voltages making them useful in a wide range of applications. One of these is local on-card regulation, eliminating the distribution problems associated with single-point regulation. The voltages available allow these regulators to be used in logic systems, instrumentation, HiFi, and other solid-state electronic equipment. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.

The LM78XX series is available in an aluminum TO-3 package which will allow over 1.0A load current if adequate heat sinking is provided. Current limiting is included to limit the peak output current to a safe value. Safe area protection for the output transistor 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.

Considerable effort was expended to make the LM78XX series of regulators easy to use and minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response. Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply.

For output voltage other than 5V, 12V and 15V the LM117 series provides an output voltage range from 1.2V to 57V.

• Output current in excess of 1A
• Internal thermal overload protection
• No external components required
• Output transistor safe area protection
• Internal short circuit current limit
• Available in the aluminum TO-3 package

ON Semiconductor LM7805CT technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor LM7805CT.

ON Semiconductor (Nasdaq: ON) is driving energy-efficient innovations, empowering customers to reduce global energy use. The company offers a comprehensive portfolio of energy-efficient power and signal management, logic, discrete and custom solutions to help design engineers solve their unique design challenges in automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace, and power supply applications. ON Semiconductor operates a responsive, reliable, world-class supply chain and quality program, and a network of manufacturing facilities, sales offices, and design centers in key markets throughout North America, Europe, and the Asia Pacific regions.

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