Overview
The MC7912BD2TR4G is a negative voltage regulator from ON Semiconductor, part of the MC7900 series. This component is designed to provide a stable -12V output voltage with a maximum current of 1.0 A. It is available in the D2PAK package, which is a surface-mount device (SMD) suitable for various electronic applications requiring reliable voltage regulation.
This regulator features a low dropout voltage, high ripple rejection, and minimal output noise, making it suitable for use in a wide range of electronic systems. The MC7912BD2TR4G operates over a temperature range of -40°C to +125°C, ensuring stability and reliability in diverse environmental conditions.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = +25°C) | -11.5 | -12 | -12.5 | Vdc |
| Line Regulation (TJ = +25°C, IO = 100 mA) | 6.0 | - | 24 | mV |
| Load Regulation (TJ = +25°C, 5.0 mA ≤ IO ≤ 1.5 A) | 46 | - | 120 | mV |
| Input Bias Current (TJ = +25°C) | 4.4 | - | 8.0 | mA |
| Output Noise Voltage (TA = +25°C, 10 Hz ≤ f ≤ 100 kHz) | 75 | - | - | μV |
| Ripple Rejection (IO = 20 mA, f = 120 Hz) | 61 | - | - | dB |
| Dropout Voltage (IO = 1.0 A, TJ = +25°C) | 1.3 | - | - | Vdc |
| Average Temperature Coefficient of Output Voltage | -1.0 | - | - | mV/°C |
Key Features
- Fixed Output Voltage: Provides a stable -12V output voltage.
- High Current Capability: Can supply up to 1.0 A of current.
- Low Dropout Voltage: Ensures minimal voltage drop between input and output, enhancing efficiency.
- High Ripple Rejection: Effectively rejects input ripple, providing a clean output voltage.
- Low Output Noise: Minimizes noise in the output voltage, suitable for sensitive applications.
- Wide Temperature Range: Operates from -40°C to +125°C, making it versatile for various environments.
- Surface Mount Package: Available in D2PAK package, suitable for SMD applications.
Applications
- Power Supplies: Used in power supply units to regulate negative voltages.
- Audio Equipment: Suitable for audio amplifiers and other audio equipment requiring stable negative voltages.
- Industrial Control Systems: Used in industrial control systems where reliable voltage regulation is crucial.
- Medical Devices: Can be used in medical devices that require stable and regulated negative voltages.
- Automotive Systems: Applicable in automotive systems that need reliable voltage regulation.
Q & A
- What is the output voltage of the MC7912BD2TR4G?
The output voltage of the MC7912BD2TR4G is -12V.
- What is the maximum current that the MC7912BD2TR4G can supply?
The MC7912BD2TR4G can supply up to 1.0 A of current.
- What is the dropout voltage of the MC7912BD2TR4G?
The dropout voltage of the MC7912BD2TR4G is 1.3 Vdc.
- What is the ripple rejection of the MC7912BD2TR4G?
The ripple rejection of the MC7912BD2TR4G is 61 dB at 120 Hz.
- What is the temperature range of the MC7912BD2TR4G?
The MC7912BD2TR4G operates from -40°C to +125°C.
- What package type is the MC7912BD2TR4G available in?
The MC7912BD2TR4G is available in the D2PAK package.
- What are some common applications of the MC7912BD2TR4G?
Common applications include power supplies, audio equipment, industrial control systems, medical devices, and automotive systems.
- How does the MC7912BD2TR4G handle input ripple?
The MC7912BD2TR4G has high ripple rejection, effectively reducing input ripple to provide a clean output voltage.
- What is the average temperature coefficient of the output voltage for the MC7912BD2TR4G?
The average temperature coefficient of the output voltage is -1.0 mV/°C.
- Is the MC7912BD2TR4G suitable for surface mount applications?
Yes, the MC7912BD2TR4G is suitable for surface mount applications due to its D2PAK package.
