Overview
The LM78L15ACZ is a linear voltage regulator produced by National Semiconductor, now part of Texas Instruments. This component is part of the LM78L series, which offers fixed output voltages and is designed for low-current applications. The LM78L15ACZ provides a stable 15V output with a maximum current of 100mA, making it suitable for various electronic circuits that require reliable voltage regulation.
This regulator features internal thermal shutdown, short circuit current limiting, and output transistor safe-area compensation, ensuring robust operation under various conditions. It is packaged in a TO-92 case, which is compact and easy to integrate into different designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Brand | National Semiconductor (NS) | |
| Regulator Type | Linear Voltage | |
| Maximum Output Current | 100mA | |
| Number of Outputs | 1 | |
| Output Voltage | 15 V | |
| Line Regulation | 250 mV | |
| Load Regulation | 150 mV | |
| Accuracy | ±5% | |
| Mounting Type | Through Hole | |
| Polarity | Positive | |
| Quiescent Current | 3mA | |
| Package Type | TO-92 | |
| Pin Count | 3 | |
| Output Type | Fixed | |
| Power Rating | 0.75W | |
| Dimensions | 5.2 x 4.19 x 5.2mm | |
| Minimum Input Voltage | 16.7 V | |
| Maximum Operating Temperature | +125 °C | |
| Maximum Input Voltage | 35 V | |
| Minimum Operating Temperature | 0 °C |
Key Features
- Internal Thermal Overload Protection: The regulator includes thermal shutdown to prevent overheating.
- Short Circuit Current Limiting: Protects the device from short circuit conditions.
- Output Transistor Safe-Area Compensation: Ensures the output transistor operates within safe limits.
- No External Components Required: The regulator can function without additional external components.
- High Ripple Rejection Ratio: Effective in reducing input voltage ripple.
- Low Drop-Out Voltage: Minimizes the voltage drop between the input and output.
- Low Ground Pin Current: Reduces power consumption.
- Output Voltage Tolerance ±5%: Ensures stable output voltage across the operating temperature range.
- Stable with Low-ESR Capacitors: Compatible with a variety of capacitors.
Applications
- Local On-Card Regulation: Suitable for regulating voltage on printed circuit boards.
- Power Supplies: Used in various power supply designs to provide stable output voltages.
- Power Distribution Systems: Ideal for distributing power in electronic systems.
- Consumer Electronics: Commonly used in consumer electronic devices for voltage regulation.
- Battery Chargers: Can be used in battery charging circuits to regulate the charging voltage.
- Low Current Energy Harvesting Applications: Suitable for applications where low current is required.
Q & A
- What is the output voltage of the LM78L15ACZ?
The output voltage of the LM78L15ACZ is 15V.
- What is the maximum output current of the LM78L15ACZ?
The maximum output current of the LM78L15ACZ is 100mA.
- What type of package does the LM78L15ACZ come in?
The LM78L15ACZ comes in a TO-92 package.
- Does the LM78L15ACZ require external components to function?
No, the LM78L15ACZ does not require external components to function.
- What is the operating temperature range of the LM78L15ACZ?
The operating temperature range of the LM78L15ACZ is from 0°C to +125°C.
- What is the maximum input voltage for the LM78L15ACZ?
The maximum input voltage for the LM78L15ACZ is 35V.
- Does the LM78L15ACZ have thermal overload protection?
- What is the quiescent current of the LM78L15ACZ?
The quiescent current of the LM78L15ACZ is 3mA.
- Is the LM78L15ACZ RoHS compliant?
- What are some common applications of the LM78L15ACZ?
The LM78L15ACZ is commonly used in power supplies, consumer electronics, battery chargers, and low current energy harvesting applications.
