Linear Technology/Analog Devices
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LT3021ES8-1.5#PBF
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LT3021ES8-1.5#PBF

Product Overview

Category

The LT3021ES8-1.5#PBF belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

  • The LT3021ES8-1.5#PBF is a low dropout (LDO) linear regulator.
  • It has a fixed output voltage of 1.5V.
  • The device operates with an input voltage range from 2.1V to 20V.
  • It can provide a maximum output current of 200mA.
  • The LT3021ES8-1.5#PBF offers excellent line and load regulation.
  • It features low quiescent current, making it suitable for battery-powered applications.
  • This regulator has built-in thermal shutdown and current limit protection.

Package

The LT3021ES8-1.5#PBF comes in an 8-pin surface mount package (SOIC-8).

Essence

The essence of the LT3021ES8-1.5#PBF is to provide a stable and regulated output voltage of 1.5V for various electronic applications.

Packaging/Quantity

This product is typically available in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Input Voltage Range: 2.1V to 20V
  • Output Voltage: 1.5V (fixed)
  • Maximum Output Current: 200mA
  • Dropout Voltage: 300mV @ 100mA
  • Line Regulation: ±0.02%
  • Load Regulation: ±0.1%
  • Quiescent Current: 40µA
  • Thermal Shutdown: Yes
  • Current Limit Protection: Yes

Detailed Pin Configuration

The LT3021ES8-1.5#PBF has the following pin configuration:

  1. VIN (Input Voltage)
  2. GND (Ground)
  3. NC (No Connection)
  4. NC (No Connection)
  5. VOUT (Output Voltage)
  6. NC (No Connection)
  7. NC (No Connection)
  8. NC (No Connection)

Functional Features

  • Low dropout voltage ensures efficient regulation even with small input-output differentials.
  • Excellent line and load regulation provide stable output voltage under varying conditions.
  • Built-in thermal shutdown protects the device from overheating.
  • Current limit protection prevents excessive current flow, safeguarding the circuit.

Advantages and Disadvantages

Advantages

  • Fixed output voltage simplifies circuit design.
  • Low quiescent current makes it suitable for battery-powered applications.
  • Compact package size allows for space-efficient integration.
  • Thermal shutdown and current limit protection enhance reliability.

Disadvantages

  • Limited maximum output current may not be sufficient for high-power applications.
  • Fixed output voltage restricts flexibility in voltage selection.

Working Principles

The LT3021ES8-1.5#PBF operates as a low dropout linear regulator. It uses a pass transistor to regulate the output voltage based on the input voltage and load conditions. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable 1.5V output.

Detailed Application Field Plans

The LT3021ES8-1.5#PBF finds applications in various electronic systems, including but not limited to: - Battery-powered devices - Portable electronics - IoT (Internet of Things) devices - Embedded systems - Audio amplifiers - Sensor circuits

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LT3021ES8-1.5#PBF include: - LM1117-1.5 - ADP3339-1.5 - MCP1701-1.5

These alternatives can be considered based on specific requirements and availability.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LT3021ES8-1.5#PBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LT3021ES8-1.5#PBF in technical solutions:

Q1: What is the LT3021ES8-1.5#PBF? A1: The LT3021ES8-1.5#PBF is a low dropout voltage linear regulator IC manufactured by Linear Technology (now part of Analog Devices). It provides a fixed output voltage of 1.5V with a maximum dropout voltage of 300mV.

Q2: What are the typical applications of LT3021ES8-1.5#PBF? A2: The LT3021ES8-1.5#PBF is commonly used in various technical solutions such as battery-powered devices, portable electronics, embedded systems, and low-power microcontroller applications.

Q3: What is the input voltage range for LT3021ES8-1.5#PBF? A3: The input voltage range for LT3021ES8-1.5#PBF is typically between 2.5V and 20V.

Q4: What is the maximum output current of LT3021ES8-1.5#PBF? A4: The maximum output current of LT3021ES8-1.5#PBF is 200mA.

Q5: Does LT3021ES8-1.5#PBF require any external components for operation? A5: Yes, LT3021ES8-1.5#PBF requires a few external components such as input and output capacitors for stability and filtering.

Q6: Can LT3021ES8-1.5#PBF handle high temperatures? A6: Yes, LT3021ES8-1.5#PBF is designed to operate over a wide temperature range, typically from -40°C to 125°C.

Q7: Is LT3021ES8-1.5#PBF protected against overcurrent and thermal shutdown? A7: Yes, LT3021ES8-1.5#PBF includes built-in protection features such as current limit and thermal shutdown to ensure safe operation.

Q8: Can LT3021ES8-1.5#PBF be used in battery charging applications? A8: No, LT3021ES8-1.5#PBF is not specifically designed for battery charging applications. It is primarily used as a low dropout voltage regulator.

Q9: What is the typical dropout voltage of LT3021ES8-1.5#PBF? A9: The typical dropout voltage of LT3021ES8-1.5#PBF is around 300mV at full load.

Q10: Can LT3021ES8-1.5#PBF be used in automotive applications? A10: Yes, LT3021ES8-1.5#PBF can be used in automotive applications as it meets the necessary requirements for automotive electronics.

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