National Semiconductor LM340LAZ-5.0
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.36 | $1.36 |
| 15+ | $0.31 | $4.65 |
| 25+ | $0.31 | $7.75 |
| 50+ | $0.29 | $14.50 |
| 100+ | $0.26 | $26.00 |
| N+ | $0.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 35V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 2V @ 1A |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 6 mA |
| Current - Supply (Max) | - |
| PSRR | 70dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, 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 |
The National Semiconductor LM340LAZ-5.0 is a classic fixed 5V linear regulator in a TO-92 package. Capable of delivering 100mA, it offers excellent ripple rejection of 70dB at 120Hz, making it suitable for audio and analog applications. Its through-hole package is easy to use in prototyping and educational settings.
- High Ripple Rejection: 70dB at 120Hz ensures clean output for audio circuits.
- Simple Through-Hole Package: TO-92 is easy to solder and breadboard.
- Proven Reliability: Based on the industry-standard LM340 series design.
- Stable 5V Output: Fixed output simplifies circuit design.
Legacy 5V Logic Circuits
Ideal for powering vintage TTL logic circuits that require a stable 5V supply, with 100mA sufficient for small logic boards.
Simple Power Supplies
Can be used as a post-regulator in basic AC-to-DC power supplies to provide a clean 5V rail.
Microcontroller Projects
Powers small 8-bit MCUs and their peripherals in hobbyist and educational projects.
Analog Reference
With 70dB PSRR at 120Hz, it effectively filters ripple, making it suitable as a reference for audio circuits.
Bias Supplies
Provides a stable bias voltage for op-amps and other analog components in signal processing chains.
Replacement for 7805
In low-current applications, it can replace a 7805 regulator to reduce board space with its TO-92 package.
- Q: What is the output voltage of the LM340LAZ-5.0?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 2V at 1A (note: this is at a higher current than the max rating).
- Q: What is the quiescent current?
- A: The quiescent current is 6 mA.
- Q: What package is available?
- A: It comes in a TO-92-3 package.
LM340LAZ-5.0.pdf
- Q: What is the output voltage of the LM340LAZ-5.0?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 2V at 1A (note: this is at a higher current than the max rating).
- Q: What is the quiescent current?
- A: The quiescent current is 6 mA.
- Q: What package is available?
- A: It comes in a TO-92-3 package.
