STMicroelectronics L79L05ABUTR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.55 | $0.55 |
| 15+ | $0.36 | $5.40 |
| 25+ | $0.35 | $8.75 |
| 50+ | $0.33 | $16.50 |
| 100+ | $0.29 | $29.00 |
| N+ | $0.06 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Negative |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | -30V |
| Voltage - Output (Min/Fixed) | -5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | - |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 5.5 mA |
| Current - Supply (Max) | 6 mA |
| PSRR | 49dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-243AA |
| Supplier Device Package | SOT-89-3 |
| ROHS |  |
The L79L05ABUTR from STMicroelectronics is a fixed -5V negative linear regulator capable of delivering 100mA. It features a quiescent current of 5.5mA and 49dB PSRR at 120Hz, making it suitable for analog applications requiring a clean negative rail. The SOT-89-3 package offers a compact solution for space-limited designs.
- Negative Output: Provides -5V rail essential for bipolar analog circuits.
- Compact SOT-89-3: Smaller footprint than traditional TO-92 packages.
- Stable Performance: 49dB PSRR reduces mains hum in audio applications.
- Proven Technology: ST's reliable three-terminal regulator design.
Negative Rail for Op-Amps
Provides a clean -5V supply for dual-supply operational amplifiers in audio and instrumentation circuits.
Bipolar ADC/DAC References
Creates a stable negative reference voltage for precision analog-to-digital converters.
Industrial Process Control
Supplies negative rails for sensors and transmitters in 4-20mA loops.
Audio Preamplifiers
Low noise 49dB PSRR at 120Hz ensures hum-free operation in audio equipment.
Test & Measurement Equipment
Reliable -5V for multimeters, oscilloscopes, and signal generators.
Power Supply Sequencing
Used in systems requiring negative supply for proper power-up sequencing.
- Q: What is the output voltage?
- A: Fixed -5V output (negative regulator).
- Q: What is the maximum output current?
- A: 100mA.
- Q: What is the input voltage range?
- A: Typically -7V to -20V (absolute max -30V).
- Q: What is the dropout voltage?
- A: Not specified in the provided data; typically around 1.7V at 100mA.
- Q: What is the quiescent current?
- A: 5.5mA.
- Q: What package is available?
- A: SOT-89-3.
L79L05ABUTR.pdf
- Q: What is the output voltage?
- A: Fixed -5V output (negative regulator).
- Q: What is the maximum output current?
- A: 100mA.
- Q: What is the input voltage range?
- A: Typically -7V to -20V (absolute max -30V).
- Q: What is the dropout voltage?
- A: Not specified in the provided data; typically around 1.7V at 100mA.
- Q: What is the quiescent current?
- A: 5.5mA.
- Q: What package is available?
- A: SOT-89-3.
