L4931CD33-TR

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L4931CD33-TR

IC REG LINEAR 3.3V 250MA 8SO

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 20V
Voltage-Output(Min/Fixed) 3.3V
VoltageDropout(Max) 0.8V @ 250mA
Current-Output 250mA
Current-Quiescent(Iq) 1 mA
Current-Supply(Max) 6 mA
PSRR 73dB ~ 55dB (120Hz ~ 10kHz)
ProtectionFeatures Over Current, Over Temperature
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概述

Description

The L4931CD33-TR is a low-dropout (LDO) voltage regulator. It is designed to provide a stable and precise voltage output, making it ideal for applications requiring consistent power supply despite variations in input voltage or load conditions. The "33" in its designation indicates an output voltage of 3.3V. With its compact design and efficient performance, this regulator is commonly used in electronic devices and circuits where space is limited and high reliability is required.
Key features of the L4931CD33-TR include low dropout voltage, low quiescent current, and short-circuit protection. These features contribute to its high efficiency and reliability. The device is typically packaged in a surface-mount format, suitable for modern printed circuit boards (PCBs), and is used in various applications, including microcontrollers, sensors, and communication devices, where a stable power supply is critical.
Overall, the L4931CD33-TR is valued for its efficiency, stability, and compact size, making it a popular choice among engineers and designers for voltage regulation needs.

Features

The L4931CD33-TR is a voltage regulator from STMicroelectronics, designed to provide a constant output voltage with high accuracy. Key features include:
1. Output Voltage: Fixed at 3.3V.
2. Maximum Output Current: Up to 100 mA.
3. Dropout Voltage: Low dropout, typically around 0.4V at maximum output current, which extends battery life in portable applications.
4. Protection Features: Includes thermal shutdown and current limit protection to prevent damage under fault conditions.
5. Quiescent Current: Low quiescent current, making it energy-efficient.
6. Temperature Range: Designed to operate over a wide temperature range, typically from -40°C to +125°C.
7. Package Type: Available in a TO-92 package (L4931CD33-TR), which is compact and suitable for various PCB layouts.
8. Stability: Capacitor requirements are minimal; it can work with a small output capacitor for stability.
These features make it suitable for a range of applications, including battery-powered devices, microcontroller power supplies, and other electronic equipment needing stable voltage regulation.

Package

The L4931CD33-TR is a low-dropout (LDO) voltage regulator with a TO-252 package type, also known as DPAK. This package is designed for surface-mount technology, providing a compact solution suitable for various electronic applications.

Pinout

The L4931CD33-TR is a low-dropout (LDO) voltage regulator. It is designed to provide a stable output voltage with low input-to-output differential. The "33" in the part number indicates that it delivers a fixed output voltage of 3.3 volts.
This component typically comes in a three-pin package:
1. Input (Vin): This pin receives the input voltage, which should be higher than the regulated output voltage to ensure proper operation.
2. Output (Vout): This pin provides the regulated 3.3V output. It is connected to the load.
3. Ground (Gnd): This is the common ground pin for both input and output, completing the circuit.
The L4931CD33-TR is used in applications requiring a stable voltage supply with minimal power dissipation and is suitable for battery-powered devices due to its low quiescent current. Its compact size and efficiency make it an ideal choice for various electronic applications.

Manufacturer

The L4931CD33-TR is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer headquartered in Geneva, Switzerland. It is one of the world's largest semiconductor companies, providing a wide range of products and solutions for various industries, including automotive, industrial, personal electronics, and communications. The company is known for its expertise in designing and manufacturing integrated circuits and embedded systems.

Application

The L4931CD33-TR is a low-dropout (LDO) voltage regulator designed for applications requiring precise voltage regulation and low noise. It is commonly used in microcontroller-based systems, consumer electronics, and automotive applications, where stable 3.3V power is necessary. Its features make it suitable for powering sensors, communication devices, and other components in portable devices and battery-powered applications.

Equivalent

The L4931CD33-TR is a low-dropout (LDO) linear voltage regulator providing a 3.3V output. Equivalent products include:
1. LM1117-3.3 from Texas Instruments
2. LD1117V33 from STMicroelectronics
3. MIC5205-3.3 from Microchip Technology
4. NCP1117-3.3 from ON Semiconductor
These alternatives offer similar specifications in terms of output voltage and current capabilities. Always check the datasheets for detailed specifications and ensure compatibility with your application.

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