TAEJIN LM79L09
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.16 | $0.16 |
| 15+ | $0.04 | $0.60 |
| 25+ | $0.04 | $1.00 |
| 50+ | $0.03 | $1.50 |
| 100+ | $0.03 | $3.00 |
| 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) | -24V |
| Voltage - Output (Min/Fixed) | -9V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.7V @ 40mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 6.5 mA |
| Current - Supply (Max) | - |
| PSRR | 43dB (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 LM79L09 from TAEJIN is a fixed negative-output linear regulator delivering -9V at up to 100mA. Housed in a TO-92 package, it offers a dropout of 1.7V at 40mA and 43dB PSRR at 120Hz. This regulator is a cost-effective solution for generating negative rails in analog and industrial applications.
- Fixed Negative Output: -9V output simplifies dual-supply designs without external components.
- Cost-Effective: TO-92 package and simple architecture make it an economical choice for volume production.
- Adequate Ripple Rejection: 43dB PSRR at 120Hz filters line-frequency noise in audio and instrumentation.
- Wide Availability: Standard pinout and package ensure easy sourcing and replacement.
Negative Supply for Op-Amps
Provides a stable -9V rail for operational amplifiers in audio mixers and signal conditioning circuits, ensuring symmetric operation.
LCD Bias Supply
Powers negative bias for LCD displays in industrial equipment, with 100mA capability for panel drivers.
Instrumentation Amplifiers
Supplies negative rail for precision instrumentation amplifiers in data acquisition systems, reducing common-mode errors.
Telecom Line Drivers
Regulates negative voltage for line driver circuits in legacy telecom equipment, maintaining signal integrity.
Battery-Powered Audio
Creates a negative rail from a battery stack for portable audio devices, with 43dB PSRR at 120Hz minimizing hum.
Sensor Conditioning
Provides negative bias for photodiodes and other sensors requiring reverse bias, ensuring consistent sensitivity.
- Q: What is the output voltage of the LM79L09?
- A: It provides a fixed -9V output.
- 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 -9V (nominal), designed for negative rail applications.
- Q: What is the dropout voltage?
- A: Dropout is 1.7V at 40mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 6.5mA.
- Q: What is the PSRR?
- A: PSRR is 43dB at 120Hz, providing adequate line ripple rejection.
LM79L09.pdf
- Q: What is the output voltage of the LM79L09?
- A: It provides a fixed -9V output.
- 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 -9V (nominal), designed for negative rail applications.
- Q: What is the dropout voltage?
- A: Dropout is 1.7V at 40mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 6.5mA.
- Q: What is the PSRR?
- A: PSRR is 43dB at 120Hz, providing adequate line ripple rejection.
