Overview
The MC7812CT-BP is a three-terminal positive voltage regulator produced by Micro Commercial Components (MCC). Although this specific part is now obsolete and no longer manufactured, it was widely used for its reliability and simplicity in voltage regulation. The MC7812CT-BP is part of the 78xx series, known for its ease of use and robust performance.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Input Voltage | VI | 14.5 | 30 | V | ||
| Output Voltage | VO | 11.66 | 12 | 12.34 | V | Tj=25°C |
| Maximum Output Current | IO | 1 | A | |||
| Operating Ambient Temperature | TA | -20 | +75 | °C | ||
| Storage Temperature Range | TSTG | -55 | +125 | °C | ||
| Quiescent Current | Iq | 4.3 | 8.0 | mA | Tj=25°C, IO=0 | |
| Dropout Voltage | Vd | 2.0 | V | IO=1.0A, Tj=25°C | ||
| Output Short Circuit Current | IOS | 350 | mA | Tj=25°C |
Key Features
- No external components required for operation.
- Internal thermal overload protection.
- Internal short-circuit current limiting.
- Output voltage offered in 2% tolerance.
- High ripple rejection (55 dB to 71 dB at 120 Hz).
- Low dropout voltage (2.0 V at IO=1.0 A).
Applications
The MC7812CT-BP is suitable for a variety of applications requiring a stable 12V output voltage. These include power supplies for electronic equipment, battery chargers, and voltage regulators in industrial and consumer electronics. However, due to its obsolescence, users are advised to consider substitute parts like the MC7812CTG from onsemi for new designs.
Q & A
- What is the output voltage of the MC7812CT-BP?
The output voltage of the MC7812CT-BP is 12V with a tolerance of 2% (11.66V to 12.34V). - What is the maximum output current of the MC7812CT-BP?
The maximum output current is 1 A. - What are the operating temperature ranges for the MC7812CT-BP?
The operating ambient temperature range is -20°C to +75°C, and the storage temperature range is -55°C to +125°C. - Does the MC7812CT-BP require external components for operation?
No, the MC7812CT-BP does not require external components for operation. - What is the dropout voltage of the MC7812CT-BP?
The dropout voltage is 2.0 V at an output current of 1.0 A. - Is the MC7812CT-BP still in production?
No, the MC7812CT-BP is obsolete and no longer manufactured. - What are some recommended substitutes for the MC7812CT-BP?
A recommended substitute is the MC7812CTG from onsemi. - What is the ripple rejection of the MC7812CT-BP?
The ripple rejection is 55 dB to 71 dB at 120 Hz. - Does the MC7812CT-BP have internal protection features?
Yes, it has internal thermal overload protection and short-circuit current limiting. - What is the quiescent current of the MC7812CT-BP?
The quiescent current is 4.3 mA to 8.0 mA at Tj=25°C and IO=0.
