STMicroelectronics
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
LD2985BM31R
詳細を表示 DataSheets

LD2985BM31R

Product Overview

Category

The LD2985BM31R belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

  • Low dropout voltage
  • Low quiescent current
  • High output voltage accuracy
  • Thermal shutdown protection

Package

The LD2985BM31R comes in a small surface-mount package.

Essence

The essence of LD2985BM31R lies in its ability to provide stable and regulated voltage output.

Packaging/Quantity

The LD2985BM31R is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 2.5V - 16V
  • Output Voltage: 3.1V
  • Dropout Voltage: 300mV @ 100mA
  • Quiescent Current: 50µA
  • Output Current: 150mA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD2985BM31R has three pins:

  1. VIN (Input Voltage)
  2. GND (Ground)
  3. VOUT (Output Voltage)

Functional Features

  • Low dropout voltage ensures efficient regulation even with low input voltages.
  • Low quiescent current minimizes power consumption when the regulator is idle.
  • High output voltage accuracy provides precise voltage regulation.
  • Thermal shutdown protection prevents damage due to excessive temperature.

Advantages and Disadvantages

Advantages

  • Small form factor
  • Wide input voltage range
  • Low quiescent current
  • Excellent thermal management

Disadvantages

  • Limited output current capacity
  • Higher dropout voltage compared to some alternatives

Working Principles

The LD2985BM31R operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the current flow through it. The regulator compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The LD2985BM31R finds applications in various electronic devices, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Digital cameras - Wireless communication systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LD2985BM31R are: - LM1117-3.3 - LT1761-3.3 - MCP1703-3.3 - TS2940-3.3

These alternatives offer similar functionality and characteristics, providing options for different design requirements.

Word count: 313 words

技術ソリューションにおける LD2985BM31R の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of LD2985BM31R in technical solutions:

  1. Q: What is LD2985BM31R? A: LD2985BM31R is a low-dropout voltage regulator IC that provides a stable output voltage with low dropout voltage.

  2. Q: What is the input voltage range for LD2985BM31R? A: The input voltage range for LD2985BM31R is typically between 2.5V and 16V.

  3. Q: What is the output voltage of LD2985BM31R? A: The output voltage of LD2985BM31R is fixed at 3.1V.

  4. Q: What is the maximum output current LD2985BM31R can handle? A: LD2985BM31R can handle a maximum output current of 150mA.

  5. Q: Is LD2985BM31R suitable for battery-powered applications? A: Yes, LD2985BM31R is suitable for battery-powered applications due to its low dropout voltage and low quiescent current.

  6. Q: Can LD2985BM31R be used in automotive applications? A: Yes, LD2985BM31R is designed to meet automotive requirements and can be used in automotive applications.

  7. Q: Does LD2985BM31R have built-in protection features? A: Yes, LD2985BM31R has built-in protection features such as thermal shutdown and current limit protection.

  8. Q: Can LD2985BM31R operate in high-temperature environments? A: Yes, LD2985BM31R can operate in high-temperature environments as it has a wide operating temperature range.

  9. Q: What is the package type of LD2985BM31R? A: LD2985BM31R is available in a small SOT-23 package.

  10. Q: Are there any application notes or reference designs available for LD2985BM31R? A: Yes, the manufacturer provides application notes and reference designs that can help in implementing LD2985BM31R in various technical solutions.

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