Overview
The MC7908CTG is a fixed output negative linear voltage regulator from onsemi, designed as a complement to the popular MC7800 series devices. This regulator is part of the MC7900 series, which offers reliable and stable negative voltage regulation. The MC7908CTG is housed in a TO-220-3 package, making it suitable for a variety of industrial applications where negative voltage regulation is required.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage | VO | -8.7 | -9.0 | -9.3 | V |
| Input Voltage Range | VI | -11.5 | -24 | V | |
| Output Current | IO | 1.0 | A | ||
| Quiescent Current | Iq | 3.0 | 6.0 | mA | |
| Output Noise Voltage | VN | 175 | μV | ||
| Ripple Rejection | RR | 54 | 60 | dB | |
| Dropout Voltage | Vd | 1.1 | V | ||
| Peak Output Current | Iopeak | 2.1 | A | ||
| Temperature Coefficient of Output Voltage | △V | -0.6 | mV/°C |
Key Features
- Internal Thermal Shut Down Protection: Protects the device from overheating.
- Internal Short Circuit Current Limiting: Limits the current in case of a short circuit.
- Epoxy Meets UL 94 V-0 Flammability Rating: Ensures the device meets safety standards for flammability.
- Halogen Free Available Upon Request: Can be ordered without halogens for environmental compliance.
- Lead Free Finish/RoHS Compliant: Compliant with RoHS regulations, ensuring environmental safety.
Applications
The MC7908CTG is suitable for various industrial applications that require stable negative voltage regulation. These include power supplies, voltage reference circuits, and any system needing a reliable negative voltage source.
Q & A
- What is the output voltage of the MC7908CTG?
The output voltage of the MC7908CTG is typically -9.0 V, with a range of -8.7 V to -9.3 V. - What is the maximum output current of the MC7908CTG?
The maximum output current is 1.0 A. - What is the quiescent current of the MC7908CTG?
The quiescent current is typically 3.0 mA, with a maximum of 6.0 mA. - Does the MC7908CTG have thermal protection?
Yes, it has internal thermal shut down protection. - Is the MC7908CTG RoHS compliant?
Yes, it is RoHS compliant and has a lead-free finish. - What is the ripple rejection of the MC7908CTG?
The ripple rejection is typically 60 dB, with a minimum of 54 dB. - What is the dropout voltage of the MC7908CTG?
The dropout voltage is typically 1.1 V. - What is the peak output current of the MC7908CTG?
The peak output current is 2.1 A. - What is the temperature coefficient of the output voltage?
The temperature coefficient of the output voltage is -0.6 mV/°C. - In what package is the MC7908CTG available?
The MC7908CTG is available in a TO-220-3 package.
