onsemi MC7905CTG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.15 | $1.15 |
| 15+ | $1.11 | $16.65 |
| 25+ | $1.09 | $27.25 |
| 50+ | $1.03 | $51.50 |
| 100+ | $0.91 | $91.00 |
| N+ | $0.18 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | |
| Packaging | Factory | Tube |
| Output Configuration | Negative |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | -35V |
| Voltage - Output (Min/Fixed) | -5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.3V @ 1A (Typ) |
| Current - Output | 1A |
| Current - Quiescent (Iq) | - |
| Current - Supply (Max) | - |
| PSRR | 70dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220 |
| ROHS |  |
The MC7905CTG from onsemi is a fixed -5V negative voltage regulator capable of 1A output. Its 1.3V dropout and 70dB ripple rejection make it a reliable choice for dual-supply systems. The TO-220 package allows easy heatsinking for high-current applications, ensuring stable negative rails in industrial and audio equipment.
- Negative Rail Expertise: Specifically designed for -5V applications, simplifying bipolar power supply design.
- High Ripple Rejection: 70dB at 120Hz effectively eliminates power supply noise, critical for audio and precision analog.
- Robust TO-220 Package: Through-hole design with tab for heatsink, supporting 1A continuous current with minimal thermal stress.
- Short-Circuit Protection: Internal current limiting and thermal shutdown safeguard the regulator and load.
Dual-Supply Op-Amp Circuits
The MC7905CTG provides the negative -5V rail needed for precision operational amplifiers in audio mixers and instrumentation, ensuring symmetrical swing and low distortion.
Industrial Sensor Conditioning
For bridge sensors and strain gauges requiring negative excitation, this regulator delivers a stable -5V with 70dB ripple rejection, improving measurement accuracy.
Telecom Line Drivers
Negative supplies are essential for RS-232 and other line transceivers. The MC7905C supplies -5V at 1A, supporting multiple channels in networking equipment.
Bipolar ADC/DAC Reference
Mixed-signal systems often need a negative analog rail. This TO-220 regulator provides a low-noise -5V, enhancing the performance of high-resolution converters.
Automotive Audio Systems
In car head units, the MC7905CTG powers negative-rail audio amplifiers, delivering clean power with 70dB PSRR to minimize alternator whine.
- Q: What is the output voltage?
- A: The MC7905CTG provides a fixed -5V output.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of output current.
- Q: What is the input voltage range?
- A: The input voltage is -5V (nominal), typically requiring -7V to -25V for regulation.
- Q: What is the dropout voltage?
- A: The typical dropout voltage is 1.3V at 1A load.
- Q: What is the PSRR?
- A: It has a power supply rejection ratio of 70dB at 120Hz.
- Q: What package is available?
- A: It comes in a TO-220 through-hole package.
MC7905CTG.pdf
- Q: What is the output voltage?
- A: The MC7905CTG provides a fixed -5V output.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of output current.
- Q: What is the input voltage range?
- A: The input voltage is -5V (nominal), typically requiring -7V to -25V for regulation.
- Q: What is the dropout voltage?
- A: The typical dropout voltage is 1.3V at 1A load.
- Q: What is the PSRR?
- A: It has a power supply rejection ratio of 70dB at 120Hz.
- Q: What package is available?
- A: It comes in a TO-220 through-hole package.
