Overview
The L78L10ACUTR is a member of the L78L series of three-terminal positive voltage regulators produced by STMicroelectronics. These regulators are designed to provide stable output voltages with internal current limiting and thermal shutdown, making them highly reliable and essentially indestructible. With adequate heat-sinking, they can deliver up to 100 mA of output current. The L78L series is intended for use in a wide range of applications, including local or on-card regulation to eliminate noise and distribution problems associated with single-point regulation. They can also be used in conjunction with power pass elements to create high-current voltage regulators and serve as a replacement for Zener diode/resistor combinations, offering lower quiescent current and noise.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | Up to 100 | mA |
| Output Voltage | 10 | V |
| Input Voltage Range | 12.5 to 23 | V |
| Line Regulation | 230 mV (Typ.) | mV |
| Load Regulation | 80 mV (Typ.) | mV |
| Quiescent Current | 6 mA (Typ.) at 25°C | mA |
| Dropout Voltage | 1.7 V (Typ.) | V |
| Operating Junction Temperature Range | 0 to 125°C | °C |
| Package Type | SOT-89 |
Key Features
- Output current up to 100 mA
- Output voltage of 10 V with ±4% or ±8% selection
- Internal current limiting and thermal shutdown for protection
- Short-circuit protection
- No external components required
- Low quiescent current and noise
- Available in SOT-89 package
Applications
The L78L10ACUTR is suitable for a variety of applications, including:
- Local or on-card voltage regulation to eliminate noise and distribution problems
- Replacement for Zener diode/resistor combinations
- Use with power pass elements to create high-current voltage regulators
- Industrial applications requiring stable and reliable voltage regulation
Q & A
- What is the maximum output current of the L78L10ACUTR?
The maximum output current is up to 100 mA.
- What are the available output voltages for the L78L series?
The L78L series offers output voltages of 3.3, 5, 6, 8, 9, 10, 12, 15, 18, and 24 V.
- What type of protection does the L78L10ACUTR have?
The L78L10ACUTR has internal current limiting and thermal shutdown, as well as short-circuit protection.
- Do I need external components to use the L78L10ACUTR?
No, the L78L10ACUTR does not require any external components.
- What is the operating junction temperature range for the L78L10ACUTR?
The operating junction temperature range is from 0 to 125°C.
- What package type is the L78L10ACUTR available in?
The L78L10ACUTR is available in the SOT-89 package.
- What are the typical quiescent current and dropout voltage for the L78L10ACUTR?
The typical quiescent current is 6 mA at 25°C, and the typical dropout voltage is 1.7 V.
- Can the L78L10ACUTR be used in high-current applications?
Yes, the L78L10ACUTR can be used with power pass elements to create high-current voltage regulators.
- What are some common applications for the L78L10ACUTR?
Common applications include local or on-card voltage regulation, replacement for Zener diode/resistor combinations, and industrial applications requiring stable voltage regulation.
- How does the L78L10ACUTR improve upon Zener diode/resistor combinations?
The L78L10ACUTR offers lower quiescent current and lower noise compared to Zener diode/resistor combinations.
