LD3985J26R

Product Overview

Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics:
- Low dropout voltage
- High output voltage accuracy
- Low quiescent current
- Thermal shutdown protection
Package: SOT-23
Essence: LD3985J26R is a voltage regulator IC designed to provide a stable output voltage with low dropout voltage.
Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

Input Voltage Range: 2.5V to 6V
Output Voltage: 2.6V
Output Current: Up to 150mA
Dropout Voltage: 200mV at 100mA
Quiescent Current: 50µA
Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LD3985J26R has the following pin configuration:

GND (Ground)
VIN (Input Voltage)
VOUT (Output Voltage)

Functional Features

Low Dropout Voltage: The LD3985J26R exhibits a low dropout voltage of only 200mV at 100mA output current, ensuring efficient power conversion.
High Output Voltage Accuracy: With a precision voltage reference, this IC provides a highly accurate output voltage of 2.6V, suitable for various applications.
Low Quiescent Current: The quiescent current of only 50µA minimizes power consumption when the device is in standby mode.
Thermal Shutdown Protection: The LD3985J26R incorporates thermal shutdown protection, preventing damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High output voltage accuracy for precise applications. - Low quiescent current minimizes power consumption. - Thermal shutdown protection prevents damage.

Disadvantages: - Limited output current of up to 150mA may not be suitable for high-power applications. - Input voltage range limited to 2.5V to 6V.

Working Principles

The LD3985J26R is a linear voltage regulator that operates by maintaining a constant voltage difference between the input and output terminals. It utilizes a precision voltage reference, error amplifier, and pass transistor to regulate the output voltage. The dropout voltage is minimized through advanced circuitry, ensuring efficient power conversion even with low input voltages.

Detailed Application Field Plans

The LD3985J26R is commonly used in various electronic devices and systems where a stable and accurate voltage supply is required. Some application fields include:

Battery-powered devices
Portable consumer electronics
Embedded systems
IoT devices
Wearable technology

Detailed and Complete Alternative Models

LD3985J33R: Output voltage of 3.3V
LD3985J50R: Output voltage of 5.0V
LD3985J18R: Output voltage of 1.8V
LD3985J12R: Output voltage of 1.2V

These alternative models provide different output voltage options to suit specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LD3985J26R v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LD3985J26R in technical solutions:

Q: What is LD3985J26R? A: LD3985J26R is a voltage regulator IC (integrated circuit) commonly used in electronic circuits to provide a stable output voltage.
Q: What is the input voltage range for LD3985J26R? A: The input voltage range for LD3985J26R is typically between 2.5V and 6V.
Q: What is the output voltage of LD3985J26R? A: The output voltage of LD3985J26R is fixed at 2.6V.
Q: What is the maximum output current of LD3985J26R? A: LD3985J26R can provide a maximum output current of 150mA.
Q: Is LD3985J26R suitable for battery-powered applications? A: Yes, LD3985J26R is often used in battery-powered applications due to its low dropout voltage and low quiescent current.
Q: Can LD3985J26R handle input voltage fluctuations? A: Yes, LD3985J26R has built-in protection features like thermal shutdown and overcurrent protection, which help it handle input voltage fluctuations.
Q: Does LD3985J26R require any external components for operation? A: Yes, LD3985J26R requires a few external components like input/output capacitors and resistors for stability and filtering purposes.
Q: Can LD3985J26R be used in automotive applications? A: Yes, LD3985J26R is suitable for automotive applications as it can withstand a wide temperature range and has built-in protection against voltage transients.
Q: What is the typical dropout voltage of LD3985J26R? A: The typical dropout voltage of LD3985J26R is around 200mV at full load.
Q: Is LD3985J26R available in different package options? A: Yes, LD3985J26R is available in various package options like SOT-23, DFN, and WLCSP, allowing flexibility in design and PCB layout.

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