LD39130SJ18R

Product Overview

Category: Integrated Circuit
Use: Voltage Regulator
Characteristics: Low Dropout, High Current Capability
Package: TO-263-7L (D2PAK)
Essence: LD39130SJ18R is a voltage regulator integrated circuit designed for low dropout applications. It provides a stable output voltage with high current capability.
Packaging/Quantity: The LD39130SJ18R is available in a TO-263-7L package and is typically sold in reels of 2500 units.

Specifications

Input Voltage Range: 2.5V to 6V
Output Voltage: 1.8V
Output Current: Up to 1.5A
Dropout Voltage: 300mV at 1A
Quiescent Current: 100µA
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD39130SJ18R has the following pin configuration:

VIN: Input Voltage
GND: Ground
EN: Enable Pin
BYP: Bypass Capacitor Connection
VOUT: Output Voltage
NC: No Connection
PGND: Power Ground

Functional Features

Low dropout voltage ensures stable output even when input voltage is close to the desired output voltage.
High current capability allows for powering devices with higher power requirements.
Enable pin allows for easy on/off control of the regulator.
Bypass capacitor connection improves stability and reduces noise.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High current capability allows for versatile applications. - Enable pin provides flexibility in controlling the regulator. - Bypass capacitor connection enhances stability.

Disadvantages: - Limited input voltage range (2.5V to 6V). - Dropout voltage of 300mV may not be suitable for ultra-low power applications.

Working Principles

The LD39130SJ18R is a linear voltage regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The LD39130SJ18R can be used in various applications, including but not limited to: - Power supplies for microcontrollers and digital circuits. - Battery-powered devices requiring stable voltage regulation. - Automotive electronics. - Industrial control systems. - Portable consumer electronics.

Detailed and Complete Alternative Models

Some alternative models to LD39130SJ18R that offer similar functionality are: - LM1117-1.8: Low dropout voltage regulator with 1.8V output. - LT1763-1.8: Ultra-low dropout regulator with 1.8V output. - TPS7A1801-SP: Radiation-hardened low dropout regulator with 1.8V output.

These alternative models provide options with different features and specifications to suit specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LD39130SJ18R v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LD39130SJ18R in technical solutions:

Q: What is LD39130SJ18R? A: LD39130SJ18R is a specific model of voltage regulator IC (integrated circuit) designed for use in various technical solutions.
Q: What is the input voltage range supported by LD39130SJ18R? A: LD39130SJ18R supports an input voltage range from 2.5V to 6V.
Q: What is the output voltage provided by LD39130SJ18R? A: LD39130SJ18R provides a fixed output voltage of 1.8V.
Q: What is the maximum output current that LD39130SJ18R can handle? A: LD39130SJ18R can handle a maximum output current of 300mA.
Q: Is LD39130SJ18R suitable for battery-powered applications? A: Yes, LD39130SJ18R is suitable for battery-powered applications as it has low quiescent current and supports a wide input voltage range.
Q: Does LD39130SJ18R have built-in protection features? A: Yes, LD39130SJ18R includes built-in protection features such as thermal shutdown, current limit, and short-circuit protection.
Q: Can LD39130SJ18R be used in automotive applications? A: Yes, LD39130SJ18R is automotive-grade and can be used in automotive applications within its specified operating conditions.
Q: What is the typical dropout voltage of LD39130SJ18R? A: The typical dropout voltage of LD39130SJ18R is around 200mV at 100mA load.
Q: Does LD39130SJ18R require any external components for operation? A: Yes, LD39130SJ18R requires a few external components such as input/output capacitors and resistors for stability and proper operation.
Q: What is the package type of LD39130SJ18R? A: LD39130SJ18R is available in a small SOT-23 package, which is commonly used for compact electronic designs.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements.