NJM78L09UA-TE1

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Fixed Output Voltage
• Package: TO-220, SOT-89
• Essence: Linear Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 10V to 35V
• Output Voltage: 9V
• Output Current: 100mA
• Dropout Voltage: 2V (typical)
• Line Regulation: 0.04%/V
• Load Regulation: 0.4%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The NJM78L09UA-TE1 has a standard three-pin configuration: 1. Pin 1: Input Voltage (VIN) 2. Pin 2: Ground (GND) 3. Pin 3: Output Voltage (VOUT)

Functional Features

• Provides a stable 9V output voltage regardless of input voltage fluctuations.
• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• Built-in thermal shutdown protection prevents overheating.
• Short-circuit current limiting protects the device from excessive current flow.

Advantages

• Compact and easy to integrate into various electronic circuits.
• Wide input voltage range allows for versatile applications.
• Excellent line and load regulation characteristics ensure stable output voltage.
• Low dropout voltage minimizes power dissipation and improves efficiency.

Disadvantages

• Limited output current capability restricts usage in high-power applications.
• Requires external capacitors for stability and noise reduction.

Working Principles

The NJM78L09UA-TE1 is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly. This feedback mechanism ensures a constant output voltage despite variations in input voltage and load conditions.

Detailed Application Field Plans

The NJM78L09UA-TE1 is commonly used in various electronic devices and applications, including: - Power supplies for microcontrollers, sensors, and other low-power digital circuits. - Battery-powered devices requiring a stable 9V power source. - Audio amplifiers and preamplifiers. - Automotive electronics. - Industrial control systems.

Detailed and Complete Alternative Models

• LM7809: Similar specifications and pin configuration, available in various package options.
• MC78L09: Low-cost alternative with comparable performance.
• UA78L09: Higher output current capability, suitable for more demanding applications.

(Note: The above list is not exhaustive and there are several other alternative models available in the market.)

This entry provides an overview of the NJM78L09UA-TE1 voltage regulator, including its basic information, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models. It serves as a comprehensive guide for understanding and utilizing this particular voltage regulator in various electronic circuits and systems.