LD39115J30R

Product Overview

Category: Integrated Circuit
Use: Voltage Regulator
Characteristics: Low Dropout, 3.0V Output
Package: TO-220
Essence: Linear Regulator
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

Input Voltage Range: 4.5V to 20V
Output Voltage: 3.0V ±2%
Output Current: Up to 1.5A
Dropout Voltage: 300mV at 1A
Quiescent Current: 75µA
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD39115J30R has the following pin configuration:

VOUT: Output Voltage
GND: Ground
VIN: Input Voltage

Functional Features

Low dropout voltage ensures stable output even with low input voltage.
Wide input voltage range allows for versatile applications.
High output current capability supports various loads.
Low quiescent current minimizes power consumption.
Thermal shutdown protection prevents overheating.

Advantages

Reliable voltage regulation for sensitive electronic components.
Compact TO-220 package facilitates easy integration into circuit designs.
Wide operating temperature range enables usage in extreme environments.
Low dropout voltage reduces power dissipation and extends battery life.

Disadvantages

Higher cost compared to switching regulators.
Limited output voltage options (fixed at 3.0V).
Requires external capacitors for stability.

Working Principles

The LD39115J30R is a linear regulator that maintains a constant output voltage regardless of variations in input voltage or load conditions. It achieves this by using a pass transistor to regulate the voltage drop across it. The regulator compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The LD39115J30R is commonly used in various applications, including:

Battery-powered devices: Provides stable voltage for microcontrollers, sensors, and other low-power components.
Automotive electronics: Regulates voltage for infotainment systems, lighting modules, and control units.
Industrial equipment: Ensures reliable power supply for sensors, actuators, and control circuits.
Communication systems: Stabilizes voltage for RF modules, transceivers, and signal processing units.

Detailed and Complete Alternative Models

LD39115J33R: 3.3V output voltage variant
LD39115J25R: 2.5V output voltage variant
LD39115J50R: 5.0V output voltage variant

These alternative models provide different output voltage options while maintaining similar characteristics and package types.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LD39115J30R v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LD39115J30R in technical solutions:

Q: What is LD39115J30R? A: LD39115J30R is a voltage regulator IC (integrated circuit) commonly used in technical solutions to regulate and stabilize voltage levels.
Q: What is the input voltage range for LD39115J30R? A: The input voltage range for LD39115J30R is typically between 2.5V and 6V.
Q: What is the output voltage of LD39115J30R? A: The output voltage of LD39115J30R is fixed at 3.0V, hence the "J30R" designation.
Q: What is the maximum output current that LD39115J30R can handle? A: LD39115J30R can handle a maximum output current of 150mA.
Q: Is LD39115J30R suitable for battery-powered applications? A: Yes, LD39115J30R is often used in battery-powered applications due to its low dropout voltage and low quiescent current.
Q: Can LD39115J30R handle input voltage fluctuations? A: Yes, LD39115J30R has built-in protection features like overcurrent and thermal shutdown, which help it handle input voltage fluctuations.
Q: Does LD39115J30R require any external components for operation? A: Yes, LD39115J30R requires a few external components like input/output capacitors and resistors for stability and filtering purposes.
Q: Can LD39115J30R be used in automotive applications? A: Yes, LD39115J30R is suitable for automotive applications as it can handle the required voltage range and has automotive-grade certifications.
Q: What is the typical efficiency of LD39115J30R? A: The typical efficiency of LD39115J30R is around 85-90%, depending on the input/output voltage differentials.
Q: Are there any recommended PCB layout guidelines for LD39115J30R? A: Yes, the datasheet of LD39115J30R provides recommended PCB layout guidelines to ensure proper thermal dissipation and minimize noise interference.

Please note that these answers are general and may vary based on specific application requirements. It's always recommended to refer to the datasheet and consult with technical experts for accurate information.