| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.29 | $0.29 |
| 15+ | $0.29 | $4.35 |
| 25+ | $0.28 | $7.00 |
| 50+ | $0.26 | $13.00 |
| 100+ | $0.23 | $23.00 |
| N+ | $0.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Shenzhen Slkormicro Semicon Co., Ltd. |
| Product Series | |
| Packaging | Cut Tape (CT) | |
| 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) | 1.7V @ 40mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 6 mA |
| Current - Supply (Max) | - |
| PSRR | 49dB (120Hz) |
| Control Features | - |
| Protection Features | - |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-243AA |
| Supplier Device Package | SOT-89 |
| ROHS |  |
The 79L05 is a fixed -5V negative linear voltage regulator from Shenzhen Slkormicro Semicon, delivering up to 100mA of output current. Housed in a SOT-89 package, it features a dropout voltage of 1.7V at 40mA and a quiescent current of 6mA. With 49dB of ripple rejection at 120Hz, it ensures clean negative power for analog and mixed-signal circuits.
- Negative -5V Output: Essential for bipolar supply designs in analog circuits.
- 100mA Output Current: Sufficient for op-amps, sensors, and display biasing.
- Low Dropout (1.7V @ 40mA): Maintains regulation with minimal headroom.
- High PSRR (49dB @ 120Hz): Reduces power supply noise for sensitive audio and measurement applications.
Negative Rail for Op-Amps
The -5V output is perfect for providing a negative supply rail to operational amplifiers in analog signal processing circuits, ensuring proper bipolar operation.
Biasing LCD Displays
Many LCD panels require a negative bias voltage; the 79L05 delivers a stable -5V rail with 100mA capability for display driver circuits.
Audio Equipment Power Supply
In audio mixers and preamps, a clean -5V rail is essential for symmetrical power; the 49dB PSRR at 120Hz minimizes hum.
Industrial Sensor Conditioning
For sensors that output negative voltages, this regulator provides a reference rail for signal conditioning and level shifting.
Telecom Line Drivers
Negative voltage is often needed in telecom interfaces; the 79L05 supplies a regulated -5V for line driver ICs.
Test & Measurement Equipment
Benchtop instruments requiring a bipolar supply can use this negative LDO alongside a positive regulator for symmetric rails.
- Q: What is the output voltage of the 79L05?
- A: The fixed output voltage is -5V (negative regulator).
- 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 is -5V (typical application requires input below -6.7V for regulation).
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.7V at 40mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 6mA.
- Q: What package is available?
- A: The device comes in SOT-89 package.
79L05.pdf
- Q: What is the output voltage of the 79L05?
- A: The fixed output voltage is -5V (negative regulator).
- 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 is -5V (typical application requires input below -6.7V for regulation).
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.7V at 40mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 6mA.
- Q: What package is available?
- A: The device comes in SOT-89 package.
