SJPZ-N40VR Product Encyclopedia Entry

Introduction

The SJPZ-N40VR is a versatile electronic component that belongs to the category of voltage regulators. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Voltage Regulator
• Use: The SJPZ-N40VR is used to regulate the voltage in electronic circuits, ensuring a stable output voltage regardless of variations in input voltage or load conditions.
• Characteristics: It is characterized by its high precision, low dropout voltage, and thermal shutdown protection.
• Package: The SJPZ-N40VR is available in a compact and heat-dissipating TO-220 package.
• Essence: Its essence lies in providing reliable voltage regulation for various electronic applications.
• Packaging/Quantity: Typically packaged individually, the SJPZ-N40VR is available in reels or trays containing multiple units.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Output Current: Up to 3A
• Dropout Voltage: 0.5V at 3A
• Quiescent Current: 5mA
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The SJPZ-N40VR has three pins: 1. Input (VIN): Connects to the input voltage source. 2. Ground (GND): Connected to the ground reference. 3. Output (VOUT): Provides the regulated output voltage.

Functional Features

• High Precision: The SJPZ-N40VR offers precise voltage regulation, making it suitable for sensitive electronic components.
• Low Dropout Voltage: It maintains a stable output voltage even when the input voltage is only slightly higher than the desired output voltage.
• Thermal Shutdown Protection: The device includes built-in thermal shutdown protection, safeguarding it from overheating.

Advantages and Disadvantages

Advantages

• Reliable voltage regulation
• Wide input voltage range
• Low dropout voltage
• Thermal shutdown protection

Disadvantages

• Higher quiescent current compared to some alternative models
• Limited to a maximum output current of 3A

Working Principles

The SJPZ-N40VR utilizes a feedback control mechanism to compare the actual output voltage with a reference voltage. It adjusts the output voltage by controlling the pass transistor to maintain a stable output voltage despite fluctuations in the input voltage or load conditions.

Detailed Application Field Plans

The SJPZ-N40VR finds extensive use in various electronic applications, including: - Power supplies - Battery charging circuits - Automotive electronics - Industrial control systems - Audio amplifiers

Detailed and Complete Alternative Models

Some alternative models to the SJPZ-N40VR include: - LM317: A popular adjustable linear voltage regulator with similar characteristics. - L7805: Fixed 5V voltage regulator suitable for low-power applications. - LM2940: Low dropout voltage regulator with a fixed output voltage.

In conclusion, the SJPZ-N40VR is a reliable voltage regulator with precise regulation, making it suitable for a wide range of electronic applications.

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