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LT1129IST-3.3#TRPBF
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LT1129IST-3.3#TRPBF

Product Overview

Category

The LT1129IST-3.3#TRPBF belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize voltage in electronic circuits.

Characteristics

  • Voltage regulation capability
  • Low dropout voltage
  • High output current
  • Thermal shutdown protection
  • Short-circuit protection

Package

The LT1129IST-3.3#TRPBF comes in a small surface-mount package.

Essence

This voltage regulator is designed to provide a stable output voltage despite fluctuations in the input voltage.

Packaging/Quantity

The LT1129IST-3.3#TRPBF is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 2.5V to 16V
  • Output Voltage: 3.3V
  • Output Current: Up to 800mA
  • Dropout Voltage: 300mV at 800mA
  • Quiescent Current: 75µA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1129IST-3.3#TRPBF has the following pin configuration:

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

Functional Features

  • Voltage regulation: The LT1129IST-3.3#TRPBF ensures a stable output voltage regardless of variations in the input voltage.
  • Low dropout voltage: It maintains a low voltage drop between the input and output, minimizing power dissipation.
  • Thermal shutdown protection: The regulator shuts down if the temperature exceeds a safe threshold, preventing damage.
  • Short-circuit protection: It safeguards against excessive current flow during a short circuit, protecting the circuitry.

Advantages and Disadvantages

Advantages

  • High output current capability
  • Wide input voltage range
  • Low dropout voltage
  • Thermal and short-circuit protection

Disadvantages

  • Limited to a fixed output voltage of 3.3V
  • Not suitable for applications requiring higher output voltages

Working Principles

The LT1129IST-3.3#TRPBF operates by comparing the output voltage with a reference voltage. It adjusts the internal circuitry to maintain a constant output voltage, compensating for changes in the input voltage.

Detailed Application Field Plans

The LT1129IST-3.3#TRPBF finds applications in various electronic devices and systems, including: 1. Battery-powered devices 2. Embedded systems 3. Portable audio players 4. IoT devices 5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LT1129IST-3.3#TRPBF are: 1. LM1117-3.3 2. MCP1700-3302E/TO 3. TS2950CT-3.3

These models offer similar voltage regulation capabilities and can be used as substitutes depending on specific requirements.

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技術ソリューションにおける LT1129IST-3.3#TRPBF 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 LT1129IST-3.3#TRPBF in technical solutions:

  1. Q: What is the LT1129IST-3.3#TRPBF? A: The LT1129IST-3.3#TRPBF is a low dropout linear regulator IC that provides a fixed output voltage of 3.3V.

  2. Q: What is the input voltage range for the LT1129IST-3.3#TRPBF? A: The input voltage range for this regulator is typically between 2.5V and 20V.

  3. Q: What is the maximum output current of the LT1129IST-3.3#TRPBF? A: The maximum output current is 800mA, which means it can supply up to 800mA of current at the regulated 3.3V output.

  4. Q: Can the LT1129IST-3.3#TRPBF be used to power microcontrollers or other digital ICs? A: Yes, it can be used to power various digital ICs, including microcontrollers, as long as the current requirements are within its specified limits.

  5. Q: Is the LT1129IST-3.3#TRPBF suitable for battery-powered applications? A: Yes, it is suitable for battery-powered applications due to its low dropout voltage and low quiescent current.

  6. Q: Does the LT1129IST-3.3#TRPBF require any external components for operation? A: Yes, it requires a few external components such as input and output capacitors for stability and filtering.

  7. Q: What is the thermal resistance of the LT1129IST-3.3#TRPBF? A: The thermal resistance is typically 40°C/W, which indicates how well it can dissipate heat.

  8. Q: Can the LT1129IST-3.3#TRPBF handle input voltage fluctuations or spikes? A: Yes, it has built-in protection features like overcurrent and thermal shutdown to handle input voltage fluctuations and protect the IC.

  9. Q: Is the LT1129IST-3.3#TRPBF available in different package options? A: Yes, it is available in various package options, including the SOT-223 package.

  10. Q: What are some typical applications of the LT1129IST-3.3#TRPBF? A: Some typical applications include powering microcontrollers, sensors, wireless modules, and other low-power digital circuits in various electronic devices.

Please note that these answers are general and may vary depending on specific design considerations and requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information and application-specific guidance.