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L4941BV

Name: L4941BV
Rating: 4.7 (12 reviews)

IC REG LINEAR 5V 1A TO220

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規格

Part Status	Active
Output Configuration	Positive
Output Type	Fixed
Number of Regulators	1
Voltage - Input (Max)	16V
Voltage - Output (Min/Fixed)	5V
Voltage Dropout (Max)	0.7V @ 1A
Current - Output	1A
Current - Quiescent (Iq)	8 mA
PSRR	68dB (120Hz)
Protection Features	Over Temperature, Reverse Polarity, Short Circuit
Operating Temperature	-40°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3
Supplier Device Package	TO-220
Base Product Number	L4941
Current - Supply (Max)	40 mA

概述

Description

The L4941BV is a high-performance linear voltage regulator designed for use in various electronic applications requiring stable voltage output. It typically provides a fixed output voltage of 5V and can supply a maximum output current of 1A. The device features low dropout voltage, enhancing efficiency, particularly in battery-operated devices. Its operating temperature range is wide, making it suitable for diverse environmental conditions.
Key features include short-circuit protection, thermal shutdown, and low quiescent current, which contribute to its reliability and efficiency. The L4941BV is packaged in a compact form, ideal for space-constrained applications. It is commonly used in consumer electronics, automotive systems, and industrial applications where regulated power supply is essential. Overall, the L4941BV is a versatile component for designers seeking a dependable voltage regulation solution.

Features

The L4941BV is a linear voltage regulator designed to provide a stable output voltage with various essential features. Key specifications include:
1. Output Voltage: Typically available in 5V, 12V, and adjustable options.
2. Current Output: Capable of delivering up to 1A of output current.
3. Low Dropout Voltage: Designed for low dropout, allowing operation even when the input voltage is close to the output voltage.
4. Thermal Protection: Includes built-in thermal shutdown to prevent overheating.
5. Short-Circuit Protection: Features short-circuit protection to safeguard the device and connected loads.
6. Wide Input Voltage Range: Accepts a broad range of input voltages, enhancing versatility in various applications.
7. Low Noise: Provides low output noise, making it suitable for sensitive electronic applications.
These characteristics make the L4941BV an excellent choice for powering electronic devices, offering reliability, efficiency, and protection features essential for modern circuits.

Package

The L4941BV is typically available in a TO-220 package type. This package features a metal tab for heat dissipation, making it suitable for applications requiring good thermal performance.

Pinout

The L4941BV is a linear voltage regulator with a total of 5 pins. The pin configuration and their functions are as follows:
1. Input (Vin): Connects to the input voltage source.
2. Ground (GND): Common ground reference.
3. Output (Vout): Provides the regulated output voltage.
4. Adjust (Adj): Used to set the output voltage if the device operates in adjustable mode.
5. Bypass (BP): Optional pin for connecting a capacitor to improve transient response.
This device is commonly used to provide a stable voltage supply for various electronic applications.

Manufacturer

The L4941BV is manufactured by STMicroelectronics, a global semiconductor company. STMicroelectronics is known for designing and manufacturing a wide range of products, including integrated circuits, microcontrollers, and sensors, serving various industries such as automotive, industrial, and consumer electronics. The company focuses on innovation and sustainability, providing solutions that enable smarter, more efficient technologies. Founded in 1987 and headquartered in Geneva, Switzerland, STMicroelectronics is recognized as one of the leading semiconductor companies worldwide.

Application

The L4941BV is a linear voltage regulator commonly used in automotive, industrial, and consumer electronics applications. It provides stable output voltage for powering microcontrollers, sensors, and other electronic devices. Its features make it suitable for battery-operated devices and voltage regulation in power supply circuits, offering low dropout voltage and thermal protection.

Equivalent

The L4941BV is a low-dropout voltage regulator. Equivalent products include the LM1117, LT1085, and MIC5205. Other alternatives are the LM2937 and LM317, depending on specific voltage and current requirements. Always check datasheets for compatibility regarding output voltage, current capacity, and package type.