L4938EPD13TR

Product Overview

Category

L4938EPD13TR belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize voltage levels in electronic circuits.

Characteristics

• High precision voltage regulation
• Low dropout voltage
• Wide input voltage range
• Overcurrent and thermal protection
• Short-circuit protection

Package

L4938EPD13TR is available in a small outline package (SOP) for surface mount applications.

Essence

The essence of L4938EPD13TR lies in its ability to provide stable and regulated voltage output, ensuring proper functioning of electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.2V to 37V
• Dropout Voltage: 0.5V at 1A load current
• Output Current: Up to 1.5A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

L4938EPD13TR has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. ADJ: Adjustable pin for setting output voltage

Functional Features

• Voltage regulation: L4938EPD13TR ensures a stable output voltage regardless of input voltage fluctuations.
• Overcurrent protection: It safeguards the circuit by limiting the output current during excessive loads.
• Thermal protection: The regulator automatically shuts down if the temperature exceeds a safe threshold.
• Short-circuit protection: It prevents damage to the circuit in case of a short-circuit condition.

Advantages and Disadvantages

Advantages

• High precision voltage regulation ensures reliable performance of electronic devices.
• Low dropout voltage minimizes power dissipation and improves efficiency.
• Wide input voltage range allows for versatile applications.
• Overcurrent, thermal, and short-circuit protection enhance safety and durability.

Disadvantages

• Limited output current capacity (up to 1.5A) may not be suitable for high-power applications.
• Higher quiescent current compared to some alternative models may result in slightly higher power consumption.

Working Principles

L4938EPD13TR operates based on the principle of feedback control. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a constant output voltage. This is achieved by regulating the current flow through the device, compensating for variations in input voltage and load conditions.

Detailed Application Field Plans

L4938EPD13TR finds applications in various fields, including: - Automotive electronics - Industrial automation - Consumer electronics - Telecommunications - Power supplies

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to L4938EPD13TR are: - LM317: A popular adjustable voltage regulator with similar characteristics. - LT1083: A high-current linear regulator suitable for demanding applications. - TPS7A47: An ultra-low noise, high PSRR voltage regulator for sensitive audio applications.

These alternative models offer different features and specifications, allowing users to choose the most suitable option based on their specific requirements.

Word count: 399 words