This document describes the MC7800, MC7800A, and NCV7805, three models of 1.0A positive voltage regulators. These voltage regulators are monolithic integrated circuits designed for a wide range of applications, including local and on-card voltage regulation. They feature internal current limiting, thermal shutdown, and safe-area compensation. With sufficient heat sinking, they can provide output currents exceeding 1.0A. While primarily designed as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.
The document describes monolithic integrated circuits designed as fixed-voltage regulators for a wide variety of applications, including local and on-card regulation. These regulators feature internal current limiting, thermal shutdown, and safe-area compensation to ensure reliable operation.
Although primarily designed as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. The series includes various models such as the MC7805B/C, MC7806B/C, and MC7806AC, offering output voltages in 2% and 4% tolerance.
| Output Current | In excess of 1.0 A |
|---|---|
| Input Voltage (MC78XX) | 5.0 − 18 V (24 V) |
| Power Dissipation | Internally Limited |
| Thermal Resistance, Junction-to-Ambient (TO-220) | 92°C/W |
| Output Voltage Tolerance | 2% and 4% |
| Package Types | D2PAK−3, DPAK−3, Standard 3-Lead Transistor Packages |
| Short Circuit Current Limit (MC7805) | 0.2 A to 0.6 A |
They employ internal current limiting, thermal shutdown, and safe-area compensation.
Yes, they can be used with external components to obtain adjustable voltages and currents.
The typical quiescent current (IB) is 3.2 mA.