STMicroelectronics L78L05ABZ-AP
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.54 | $0.54 |
| 15+ | $0.12 | $1.80 |
| 25+ | $0.12 | $3.00 |
| 50+ | $0.11 | $5.50 |
| 100+ | $0.10 | $10.00 |
| N+ | $0.02 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | |
| Packaging | Tape & Box (TB) | Cut Tape (CT) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 30V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | - |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 5.5 mA |
| Current - Supply (Max) | 6 mA |
| PSRR | 49dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) Formed Leads |
| Supplier Device Package | TO-92-3 |
| ROHS |
The L78L05ABZ-AP from STMicroelectronics is a classic 100mA LDO linear regulator providing a fixed 5V output. Housed in a TO-92-3 package, it offers a simple and reliable solution for low-power applications. With a quiescent current of 5.5 mA and 49dB PSRR, it is well-suited for microcontroller and analog reference circuits.
- Simple Fixed Output: 5V output eliminates the need for external resistors, simplifying design.
- Through-Hole Package: TO-92-3 is easy to solder and breadboard, ideal for prototyping.
- Proven Reliability: STMicroelectronics' L78L series is a trusted, long-standing regulator family.
- Cost-Effective: Low-cost solution for basic 5V regulation in consumer and industrial products.
Microcontroller Power Supplies
The fixed 5V output and 100mA capability are ideal for powering small 8-bit MCUs and their peripherals.
Analog Reference Rails
In mixed-signal circuits, this regulator can provide a stable 5V rail for op-amps and ADC references, reducing noise.
Consumer Electronics
For remote controls, small appliances, and toys, the TO-92 package and 5V output offer a simple power solution.
Battery Charger Circuits
It can regulate a 5V rail for charging logic and status LEDs in simple charger designs.
Sensor Interface Boards
In industrial sensors, the 5V rail powers signal conditioning circuits, with the 49dB PSRR filtering line noise.
Prototyping and Education
The through-hole TO-92 package is breadboard-friendly, making it excellent for educational projects and quick prototypes.
- Q: What is the output voltage of the L78L05ABZ-AP?
- A: This regulator provides a fixed 5V output, a standard logic and microcontroller supply voltage.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA, suitable for low-power circuits and reference supplies.
- Q: What is the input voltage range?
- A: The input voltage is 5V; however, the L78L05 typically accepts 7V to 20V input. Verify the datasheet.
- Q: What is the quiescent current?
- A: The quiescent current is 5.5 mA, which is typical for this family of regulators.
- Q: What is the PSRR?
- A: The PSRR is 49dB at 120Hz, providing moderate ripple rejection for basic filtering.
- Q: What package is available?
- A: It comes in the TO-92-3 package, a classic through-hole package for easy prototyping.
- Q: What is the output voltage of the L78L05ABZ-AP?
- A: This regulator provides a fixed 5V output, a standard logic and microcontroller supply voltage.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA, suitable for low-power circuits and reference supplies.
- Q: What is the input voltage range?
- A: The input voltage is 5V; however, the L78L05 typically accepts 7V to 20V input. Verify the datasheet.
- Q: What is the quiescent current?
- A: The quiescent current is 5.5 mA, which is typical for this family of regulators.
- Q: What is the PSRR?
- A: The PSRR is 49dB at 120Hz, providing moderate ripple rejection for basic filtering.
- Q: What package is available?
- A: It comes in the TO-92-3 package, a classic through-hole package for easy prototyping.

L78L05ABZ-AP.pdf