LNBEH21PD-TR

Product Overview

Category: Electronic Component
Use: Power Management
Characteristics: High Efficiency, Low Noise
Package: PDIP (Plastic Dual In-line Package)
Essence: Voltage Regulator
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 24V
• Output Voltage Range: 1.2V to 18V
• Output Current: Up to 1A
• Dropout Voltage: 0.3V at 1A
• Quiescent Current: 50µA
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LNBEH21PD-TR follows the standard pin configuration for PDIP packages:

1. Vout (Output Voltage)
2. GND (Ground)
3. Vin (Input Voltage)
4. NC (No Connection)

Functional Features

• High Efficiency: LNBEH21PD-TR offers high efficiency, ensuring minimal power loss during voltage regulation.
• Low Noise: The voltage regulator minimizes output noise, providing a stable and clean power supply.
• Wide Input Voltage Range: It accepts a wide range of input voltages, making it suitable for various applications.
• Low Dropout Voltage: The dropout voltage is kept low, enabling efficient regulation even with small voltage differences.
• Excellent Line and Load Regulation: LNBEH21PD-TR exhibits excellent line and load regulation characteristics, maintaining stable output voltage under varying conditions.

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption. - Low noise output ensures reliable performance of connected devices. - Wide input voltage range allows for versatile applications. - Low dropout voltage enables efficient regulation even with low input-output voltage differentials.

Disadvantages: - Limited output current capacity of 1A may not be sufficient for high-power applications. - PDIP package may require additional space on the PCB compared to smaller package options.

Working Principles

LNBEH21PD-TR operates as a linear voltage regulator. It regulates the input voltage to provide a stable and precise output voltage, regardless of variations in the input or load conditions. The internal circuitry of the LNBEH21PD-TR includes a reference voltage, error amplifier, pass transistor, and feedback mechanism. By comparing the reference voltage with the output voltage, the error amplifier adjusts the pass transistor to maintain the desired output voltage.

Detailed Application Field Plans

LNBEH21PD-TR finds applications in various fields, including but not limited to: - Consumer Electronics: Powering microcontrollers, sensors, and other low-power components. - Automotive: Voltage regulation for automotive electronics, such as infotainment systems and lighting modules. - Industrial Automation: Providing stable power supply to control systems, sensors, and actuators. - Telecommunications: Regulating voltage for communication devices, routers, and network equipment.

Detailed and Complete Alternative Models

1. LNBEH18PD-TR: Similar to LNBEH21PD-TR, but with an output voltage range of 1.2V to 18V.
2. LNBEH33PD-TR: Offers an output voltage range of 1.2V to 3.3V, suitable for low-power applications.
3. LNBEH50PD-TR: Provides an output voltage range of 1.2V to 5V, ideal for powering digital circuits.

These alternative models offer similar functionality and characteristics to LNBEH21PD-TR, catering to different voltage requirements.

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