L4941 Datasheet Summary
The L4941 datasheet contains detailed information on a very low drop 1A regulator, designed for use in various industrial and consumer applications. This component is characterized by its low dropout voltage and low quiescent current, enhancing the performance and efficiency of battery-powered equipment.
Key Features
The regulator boasts several key features:
- Low dropout voltage: Typical value of 450mV at 1A, which promotes efficient use of battery power.
- Very low quiescent current: This feature minimizes standby energy consumption, contributing to prolonged battery life.
- Thermal shutdown: Protection mechanism that prevents the device from overheating.
- Short circuit protection: Safeguards the regulator from short circuit instances, enhancing its reliability.
- Reverse polarity protection: Protects the device against reverse voltage, which can potentially damage the circuit.
Description and Applications
The L4941 voltage regulator is suitable for battery-powered applications due to its low input/output voltage drop. This characteristic makes it particularly adept at conserving energy and extending battery life. The regulator is presented in two types of packages: TO-220 and DPAK. Its versatile packaging options enable it to be effectively utilized across a wide array of applications.
Protection Features
Designed with robustness in mind, the L4941 incorporates not only thermal shutdown and short circuit protection but also an anti-saturation circuit and safe area protection. These features provide a secure operating environment, preventing damage to the device under various abnormal conditions.
Ordering Information
The datasheet specifies two part numbers for ordering the L4941 regulator:
- L4941BV in a TO-220 package
- L4941BDTTR in a DPAK package
Datasheet Contents
For comprehensive technical details, the datasheet includes the following sections, some of which extend beyond the first two pages:
- Block diagram of the L4941
- Pin configuration details
- Maximum ratings indicating the limits of operation
- Test circuits for evaluating the regulator
- Electrical characteristics covering the operational parameters
- Typical application and schematic application guidance
- Package mechanical data providing physical dimensions
- Revision history documenting changes and updates to the datasheet
The datasheet presents revisions up to September 2006 and identifies the document as revision 5.
References:
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