LD3985J29R

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: LD3985J29R 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: 2.9V
Output Current: Up to 150mA
Dropout Voltage: 200mV at 100mA
Quiescent Current: 50µA
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD3985J29R IC has the following pin configuration:

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

Functional Features

Low Dropout Voltage: LD3985J29R exhibits a low dropout voltage of only 200mV at 100mA output current, ensuring efficient power conversion.
High Output Voltage Accuracy: The IC provides a highly accurate output voltage of 2.9V, making it suitable for applications requiring precise voltage regulation.
Low Quiescent Current: With a quiescent current of only 50µA, LD3985J29R minimizes power consumption during standby or idle modes.
Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents overheating and ensures safe operation under high temperature conditions.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High output voltage accuracy for precise voltage regulation. - Low quiescent current minimizes power consumption. - Thermal shutdown protection enhances safety.

Disadvantages: - Limited output current capacity (up to 150mA).

Working Principles

LD3985J29R operates as a linear voltage regulator. It regulates the input voltage to a stable output voltage of 2.9V by maintaining a low dropout voltage. The internal circuitry of the IC adjusts the output voltage based on the feedback received from the output pin, ensuring accurate voltage regulation.

Detailed Application Field Plans

The LD3985J29R IC finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Wearable devices - IoT modules - Embedded systems

Detailed and Complete Alternative Models

LD3985J33R: Voltage regulator with an output voltage of 3.3V.
LD3985J25R: Voltage regulator with an output voltage of 2.5V.
LD3985J18R: Voltage regulator with an output voltage of 1.8V.
LD3985J12R: Voltage regulator with an output voltage of 1.2V.

These alternative models provide different output voltages to cater to specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LD3985J29R v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LD3985J29R in technical solutions:

Q: What is LD3985J29R? A: LD3985J29R is a low dropout (LDO) voltage regulator IC that provides a fixed output voltage of 2.9V.
Q: What is the input voltage range for LD3985J29R? A: The input voltage range for LD3985J29R is typically between 2.5V and 6V.
Q: What is the maximum output current of LD3985J29R? A: LD3985J29R can provide a maximum output current of 150mA.
Q: What is the dropout voltage of LD3985J29R? A: The dropout voltage of LD3985J29R is typically around 200mV at full load.
Q: Can LD3985J29R be used in battery-powered applications? A: Yes, LD3985J29R is suitable for battery-powered applications due to its low dropout voltage and low quiescent current.
Q: Does LD3985J29R have built-in thermal protection? A: Yes, LD3985J29R has built-in thermal shutdown protection to prevent overheating.
Q: Can LD3985J29R handle input voltage fluctuations? A: Yes, LD3985J29R has good input voltage stability and can handle input voltage fluctuations within its specified range.
Q: Is LD3985J29R compatible with both ceramic and tantalum capacitors? A: Yes, LD3985J29R is compatible with both ceramic and tantalum capacitors for input and output decoupling.
Q: Can LD3985J29R be used in automotive applications? A: Yes, LD3985J29R is suitable for automotive applications as it meets the necessary requirements such as temperature range and reliability.
Q: What are some typical applications of LD3985J29R? A: LD3985J29R can be used in various applications such as portable devices, battery-powered systems, IoT devices, and low-power microcontrollers.

Please note that these answers are general and may vary depending on specific design considerations and requirements.