LD1086DT80TR

Product Overview

Category: Integrated Circuit
Use: Voltage Regulator
Characteristics: High current, low dropout voltage
Package: TO-252-3 (DPAK)
Essence: Linear regulator
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

Input Voltage: 2.5V - 20V
Output Voltage: 1.25V - 18V
Output Current: Up to 1.5A
Dropout Voltage: 1.15V @ 1A
Line Regulation: 0.04% typical
Load Regulation: 0.1% typical
Operating Temperature: -40°C to +125°C

Detailed Pin Configuration

The LD1086DT80TR has three pins:

Input (VIN): Connects to the input voltage source.
Ground (GND): Connected to the ground reference.
Output (VOUT): Provides the regulated output voltage.

Functional Features

High current capability allows for powering various loads.
Low dropout voltage ensures efficient regulation even with small input-output differentials.
Built-in thermal shutdown and current limit protection.
Adjustable output voltage using external resistors.
Excellent line and load regulation characteristics.

Advantages

Wide input voltage range provides flexibility in different applications.
Stable and accurate output voltage regulation.
Compact TO-252-3 package allows for easy integration into circuit designs.
Thermal shutdown and current limit protection enhance reliability.

Disadvantages

Limited maximum output current compared to some other voltage regulators.
Dropout voltage may cause power dissipation in high current applications.

Working Principles

The LD1086DT80TR is a linear voltage regulator that operates by maintaining a constant output voltage regardless of changes in the input voltage or load conditions. It achieves this through a pass transistor that adjusts its resistance to regulate the output voltage. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly.

Detailed Application Field Plans

The LD1086DT80TR is commonly used in various applications, including:

Power supplies for microcontrollers and other digital ICs.
Battery-powered devices requiring stable voltage regulation.
Automotive electronics, such as infotainment systems and engine control units.
Industrial automation equipment.
Communication systems and networking devices.

Detailed and Complete Alternative Models

LM317T: Adjustable voltage regulator with similar specifications.
LT1086CT: Higher current version with up to 3A output capability.
LDO50V: Low dropout voltage regulator suitable for low-power applications.

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Sure! Here are 10 common questions and answers related to the application of LD1086DT80TR in technical solutions:

Q: What is LD1086DT80TR? A: LD1086DT80TR is a voltage regulator IC that provides a fixed output voltage of 3.3V with a maximum output current of 800mA.
Q: What are the typical applications of LD1086DT80TR? A: LD1086DT80TR is commonly used in various electronic devices such as microcontrollers, sensors, and other low-power digital circuits.
Q: How does LD1086DT80TR regulate voltage? A: LD1086DT80TR uses a series pass transistor to maintain a constant output voltage regardless of input voltage variations.
Q: What is the input voltage range for LD1086DT80TR? A: The input voltage range for LD1086DT80TR is typically between 4.5V and 20V.
Q: Can LD1086DT80TR handle higher input voltages? A: No, LD1086DT80TR is designed to operate within the specified input voltage range. Exceeding this range may damage the IC.
Q: Does LD1086DT80TR require any external components for operation? A: Yes, LD1086DT80TR requires input and output capacitors for stability and proper operation. Refer to the datasheet for recommended values.
Q: Is LD1086DT80TR suitable for battery-powered applications? A: Yes, LD1086DT80TR can be used in battery-powered applications as it has a low dropout voltage, which allows it to operate even when the input voltage is close to the output voltage.
Q: What is the maximum power dissipation of LD1086DT80TR? A: The maximum power dissipation of LD1086DT80TR is typically 1.5W. Ensure proper heat sinking if operating close to this limit.
Q: Can LD1086DT80TR handle short-circuit conditions? A: Yes, LD1086DT80TR has built-in protection features that allow it to withstand short-circuit conditions without damage.
Q: Are there any recommended PCB layout guidelines for LD1086DT80TR? A: Yes, the datasheet provides guidelines for PCB layout, including proper grounding, decoupling capacitors placement, and thermal considerations to ensure optimal performance and reliability.

Please note that these answers are general and may vary depending on specific application requirements. Always refer to the datasheet and consult with an experienced engineer for accurate information.