Overview
The MC7912BD2TR4 is a negative voltage regulator from onsemi, designed to provide a stable and regulated output voltage. This component is part of the MC7900 series, which is known for its high performance and reliability in various electronic systems. The MC7912BD2TR4 is specifically configured to deliver a fixed output voltage of -12V, making it suitable for applications requiring a stable negative voltage supply.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = +25°C) | -11.5 | -12 | -12.5 | Vdc |
| Input Voltage Range | -14 | -35 | V | |
| Output Current | 1.0 | A | ||
| Line Regulation (TJ = +25°C, IO = 100 mA) | 13 | mV | ||
| Load Regulation (TJ = +25°C, 5.0 mA ≤ IO ≤ 1.5 A) | 46 | mV | ||
| Dropout Voltage (IO = 1.0 A, TJ = +25°C) | 1.3 | Vdc | ||
| Output Noise Voltage (TA = +25°C, 10 Hz ≤ f ≤ 100 kHz) | 75 | μV | ||
| Ripple Rejection (IO = 20 mA, f = 120 Hz) | 61 | dB | ||
| Minimum Operating Temperature | -40 | °C |
Key Features
- Fixed Output Voltage: The MC7912BD2TR4 provides a fixed output voltage of -12V, ensuring a stable voltage supply for various applications.
- High Current Capability: It can supply up to 1.0 A of output current, making it suitable for power-hungry devices.
- Low Dropout Voltage: With a dropout voltage of 1.3 V, this regulator minimizes the voltage difference between the input and output, enhancing efficiency.
- Good Line and Load Regulation: The component offers excellent line and load regulation, ensuring that the output voltage remains stable under varying input and load conditions.
- Low Output Noise: The regulator has a low output noise voltage, which is crucial for applications requiring minimal noise and high signal integrity.
- High Ripple Rejection: It features high ripple rejection, which helps in filtering out unwanted AC components from the output voltage.
Applications
The MC7912BD2TR4 is versatile and can be used in a variety of applications, including:
- Power Supplies: It is ideal for designing power supplies that require a stable negative voltage output.
- Audio Equipment: The low noise and high ripple rejection make it suitable for audio equipment where signal integrity is critical.
- Industrial Control Systems: It can be used in industrial control systems that require reliable and stable voltage supplies.
- Medical Devices: The component's stability and low noise characteristics make it a good choice for medical devices that require precise voltage regulation.
Q & A
- What is the output voltage of the MC7912BD2TR4?
The output voltage of the MC7912BD2TR4 is -12V. - What is the maximum output current of the MC7912BD2TR4?
The maximum output current is 1.0 A. - What is the input voltage range for the MC7912BD2TR4?
The input voltage range is from -14 V to -35 V. - What is the dropout voltage of the MC7912BD2TR4?
The dropout voltage is 1.3 V. - What is the ripple rejection of the MC7912BD2TR4?
The ripple rejection is 61 dB. - What is the minimum operating temperature of the MC7912BD2TR4?
The minimum operating temperature is -40°C. - Is the MC7912BD2TR4 suitable for high-current applications?
Yes, it is suitable for high-current applications up to 1.0 A. - What are some common applications of the MC7912BD2TR4?
Common applications include power supplies, audio equipment, industrial control systems, and medical devices. - How does the MC7912BD2TR4 ensure stable output voltage?
The component ensures stable output voltage through good line and load regulation. - What is the significance of low output noise in the MC7912BD2TR4?
Low output noise is significant for applications requiring minimal noise and high signal integrity.
