TAEJIN LM78L05F
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.37 | $0.37 |
| 15+ | $0.08 | $1.20 |
| 25+ | $0.08 | $2.00 |
| 50+ | $0.08 | $4.00 |
| 100+ | $0.07 | $7.00 |
| N+ | $0.01 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | TAEJIN |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| 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 Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-243AA |
| Supplier Device Package | SOT-89 |
| ROHS |  |
The LM78L05F is a fixed 5V linear regulator in a compact SOT-89 package, delivering up to 100mA. It offers a dropout voltage of 1.7V at 40mA and a quiescent current of 6mA. With 49dB PSRR at 120Hz, it effectively suppresses power supply ripple. This regulator is ideal for 5V logic circuits, sensor interfaces, and audio applications where space is limited. Its robust thermal protection ensures reliable operation in industrial and automotive environments.
- Compact SOT-89 Package: Saves PCB space compared to TO-92 or DPAK alternatives.
- Good Ripple Rejection: 49dB PSRR at 120Hz ensures clean output for sensitive analog circuits.
- Proven 78xx Architecture: Industry-standard performance with thermal overload protection.
- Fixed 5V Output: No external components needed for voltage setting.
5V Logic Supply for MCU Boards
The LM78L05F provides a stable 5V rail for 5V logic ICs and microcontrollers in embedded systems, with 100mA sufficient for small digital circuits.
Industrial Sensor Interfaces
With 49dB PSRR at 120Hz, it effectively filters mains hum in industrial 24V-to-5V conversions for sensor signal conditioning.
Audio Preamplifier Power
Low noise and good ripple rejection make it suitable for powering op-amp based audio preamps requiring a clean 5V supply.
Automotive ECU Peripheral Supply
Handles 12V automotive battery input and provides regulated 5V for sensors and CAN transceivers, with thermal protection.
Battery Charger Control Circuits
Provides reference voltage and control logic power in simple battery charger designs, ensuring consistent 5V for comparators.
Relay Driver Logic
Powers the logic side of relay driver circuits, isolating the 5V control from higher voltage switching rails.
- Q: What is the output voltage?
- A: Fixed 5V output.
- Q: What is the maximum output current?
- A: 100mA continuous.
- Q: What is the input voltage range?
- A: Typically 7V to 20V, with 5V output requiring at least 6.7V input.
- Q: What is the dropout voltage?
- A: 1.7V at 40mA load.
- Q: What is the quiescent current?
- A: 6mA typical.
- Q: What is the PSRR?
- A: 49dB at 120Hz, providing good ripple rejection.
- Q: What package is available?
- A: SOT-89 surface-mount package.
LM78L05F.pdf
- Q: What is the output voltage?
- A: Fixed 5V output.
- Q: What is the maximum output current?
- A: 100mA continuous.
- Q: What is the input voltage range?
- A: Typically 7V to 20V, with 5V output requiring at least 6.7V input.
- Q: What is the dropout voltage?
- A: 1.7V at 40mA load.
- Q: What is the quiescent current?
- A: 6mA typical.
- Q: What is the PSRR?
- A: 49dB at 120Hz, providing good ripple rejection.
- Q: What package is available?
- A: SOT-89 surface-mount package.
