Texas Instruments LM79L05ACZ/LFT1
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.66 | $0.66 |
| 15+ | $0.63 | $9.45 |
| 25+ | $0.62 | $15.50 |
| 50+ | $0.59 | $29.50 |
| 100+ | $0.52 | $52.00 |
| N+ | $0.10 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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) | - |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 6 mA |
| Current - Supply (Max) | - |
| PSRR | 50dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | 0°C ~ 70°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) |
| Supplier Device Package | TO-92-3 |
| ROHS |  |
The LM79L05ACZ/LFT1 from Texas Instruments is a fixed negative-output linear regulator delivering -5V at up to 100mA. Housed in a TO-92-3 package, it offers a quiescent current of 6mA and PSRR of 50dB at 120Hz. This regulator is designed for applications requiring a stable negative rail, such as op-amp supplies, sensor biasing, and audio circuits. Its simple three-terminal design ensures ease of use in through-hole PCB assemblies.
- Negative Rail Solution: Provides a dedicated -5V output, simplifying bipolar power supply design.
- Proven Reliability: Based on the industry-standard 79L05 architecture, ensuring long-term stability.
- Through-Hole Package: TO-92-3 package is easy to solder and replace, ideal for prototyping and maintenance.
- Adequate Ripple Rejection: 50dB PSRR at 120Hz reduces mains-frequency noise in analog circuits.
Negative Rail for Op-Amps
Provides a stable -5V rail for dual-supply operational amplifiers in audio mixers and instrumentation, ensuring symmetrical signal swing.
Bipolar ADC/DAC Supplies
Powers negative supply pins of precision converters, enabling bipolar input ranges in data acquisition systems.
Sensor Biasing
Supplies -5V bias for MEMS sensors and photodiodes requiring negative operating voltages in industrial monitoring.
Audio Preamplifiers
With 50dB PSRR at 120Hz, it reduces mains hum in audio preamp stages, improving signal clarity.
Test Equipment
Used in benchtop multimeters and oscilloscopes to generate internal negative reference voltages for measurement circuits.
Telecom Line Drivers
Provides negative supply for line drivers and receivers in legacy telecom interfaces, maintaining signal integrity.
- Q: What is the output voltage of the LM79L05ACZ?
- A: It provides a fixed negative output voltage of -5V.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is from -7V to -20V, allowing flexible negative supply designs.
- Q: What is the quiescent current?
- A: The quiescent current is 6mA, typical for this class of negative regulators.
- Q: What is the PSRR performance?
- A: PSRR is 50dB at 120Hz, providing adequate ripple rejection for audio and analog circuits.
- Q: What package is available?
- A: It is available in a TO-92-3 package, suitable for through-hole PCB mounting.
LM79L05ACZ/LFT1.pdf
- Q: What is the output voltage of the LM79L05ACZ?
- A: It provides a fixed negative output voltage of -5V.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is from -7V to -20V, allowing flexible negative supply designs.
- Q: What is the quiescent current?
- A: The quiescent current is 6mA, typical for this class of negative regulators.
- Q: What is the PSRR performance?
- A: PSRR is 50dB at 120Hz, providing adequate ripple rejection for audio and analog circuits.
- Q: What package is available?
- A: It is available in a TO-92-3 package, suitable for through-hole PCB mounting.
