TAEJIN LM79L05
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.26 | $0.26 |
| 15+ | $0.06 | $0.90 |
| 25+ | $0.05 | $1.25 |
| 50+ | $0.05 | $2.50 |
| 100+ | $0.05 | $5.00 |
| N+ | $0.01 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | TAEJIN |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Negative |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | -20V |
| Voltage - Output (Min/Fixed) | -5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.7V @ 40mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 6 mA |
| Current - Supply (Max) | - |
| PSRR | 49dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) |
| Supplier Device Package | TO-92 |
| ROHS |
The LM79L05 is a fixed -5V linear regulator from TAEJIN, delivering 100mA output. It features a dropout voltage of 1.7V at 40mA and a quiescent current of 6mA. The TO-92 package and 49dB PSRR at 120Hz make it suitable for negative rail applications in audio, industrial, and test equipment.
- Fixed -5V output: Simplifies negative rail design without external components.
- Low quiescent current (6mA): Efficient for battery-powered negative supplies.
- TO-92 package: Easy to mount and widely available.
- High PSRR (49dB): Reduces mains hum in audio applications.
Negative Supply for Op-Amps
Provides a -5V rail for dual-supply operational amplifiers in audio mixers and active filters.
Bipolar ADC Reference
Supplies a negative reference for bipolar analog-to-digital converters in industrial data acquisition.
LCD Bias Supply
Generates a negative bias for LCD panels in older display modules.
Sensor Excitation
Powers negative-rail sensors in automotive and industrial environments, with 49dB PSRR at 120Hz.
Telecom Line Driver
Used in telecommunication line interface circuits requiring a -5V supply.
Battery-Powered Instruments
Creates a negative rail for portable multimeters and signal generators.
- Q: What is the output voltage?
- A: The LM79L05 provides a fixed -5V output.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: Input must be more negative than -5V (e.g., -7V to -20V typical).
- Q: What is the dropout voltage?
- A: Dropout is 1.7V at 40mA.
- Q: What is the quiescent current?
- A: Quiescent current is 6mA.
- Q: What package is available?
- A: Available in TO-92 package.
- Q: What is the output voltage?
- A: The LM79L05 provides a fixed -5V output.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: Input must be more negative than -5V (e.g., -7V to -20V typical).
- Q: What is the dropout voltage?
- A: Dropout is 1.7V at 40mA.
- Q: What is the quiescent current?
- A: Quiescent current is 6mA.
- Q: What package is available?
- A: Available in TO-92 package.

LM79L05.pdf