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SPX2945M3-L-3-3
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SPX2945M3-L-3-3

Product Overview

Category

The SPX2945M3-L-3-3 belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

  • High precision voltage regulation
  • Low dropout voltage
  • Low quiescent current
  • Thermal shutdown protection

Package

The SPX2945M3-L-3-3 comes in a small surface-mount SOT-223 package.

Essence

The essence of this product lies in its ability to provide stable and regulated voltage output for various electronic applications.

Packaging/Quantity

The SPX2945M3-L-3-3 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 4.5V to 26V
  • Output Voltage Range: 1.25V to 23V
  • Dropout Voltage: 0.5V (typical)
  • Quiescent Current: 75µA (typical)
  • Maximum Output Current: 1A
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The SPX2945M3-L-3-3 has three pins:

  1. VIN (Pin 1): Input voltage pin
  2. VOUT (Pin 2): Output voltage pin
  3. GND (Pin 3): Ground pin

Functional Features

  • High Precision Regulation: The SPX2945M3-L-3-3 provides precise voltage regulation, ensuring stable output even under varying load conditions.
  • Low Dropout Voltage: With a low dropout voltage of only 0.5V, this regulator can operate efficiently even when the input voltage is close to the desired output voltage.
  • Low Quiescent Current: The device consumes minimal current when in standby mode, resulting in improved energy efficiency.
  • Thermal Shutdown Protection: The SPX2945M3-L-3-3 incorporates thermal shutdown protection to prevent overheating and potential damage to the device.

Advantages and Disadvantages

Advantages

  • High precision voltage regulation ensures stable output.
  • Low dropout voltage allows for efficient operation.
  • Low quiescent current improves energy efficiency.
  • Thermal shutdown protection prevents overheating.

Disadvantages

  • Limited maximum output current of 1A may not be suitable for high-power applications.
  • SOT-223 package may require additional space on the PCB compared to smaller packages.

Working Principles

The SPX2945M3-L-3-3 operates based on a linear voltage regulator principle. It takes an input voltage within the specified range and regulates it to provide a stable output voltage. The internal circuitry of the device adjusts the voltage by controlling the flow of current through a series pass transistor.

Detailed Application Field Plans

The SPX2945M3-L-3-3 finds application in various electronic systems that require precise voltage regulation. Some common application fields include:

  1. Battery-powered devices: This voltage regulator can be used in portable electronics such as smartphones, tablets, and wearable devices to ensure stable power supply from the battery.
  2. Industrial control systems: The SPX2945M3-L-3-3 can be employed in industrial automation systems to regulate voltage for sensors, actuators, and other control components.
  3. Automotive electronics: It can be utilized in automotive applications to provide regulated voltage for various subsystems, including infotainment systems, lighting, and engine control units.

Detailed and Complete Alternative Models

  1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
  2. LT1763-3.3: Another alternative offering high precision voltage regulation and low dropout voltage.
  3. MCP1702-3302E: An alternative with a lower quiescent current and compact SOT-23 package.

(Note: The above list is not exhaustive and there are several other alternatives available in the market.)

In conclusion, the SPX2945M3-L-3-3 is a voltage regulator that provides high precision voltage regulation, low dropout voltage, and thermal shutdown protection. It finds application in various electronic systems and has alternatives with similar features.

技術ソリューションにおける SPX2945M3-L-3-3 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 SPX2945M3-L-3-3 in technical solutions:

  1. Q: What is SPX2945M3-L-3-3? A: SPX2945M3-L-3-3 is a low-dropout voltage regulator IC that provides a fixed output voltage of 3.3V.

  2. Q: What is the input voltage range for SPX2945M3-L-3-3? A: The input voltage range for SPX2945M3-L-3-3 is typically between 4.5V and 30V.

  3. Q: What is the maximum output current of SPX2945M3-L-3-3? A: SPX2945M3-L-3-3 can provide a maximum output current of 1A.

  4. Q: Can SPX2945M3-L-3-3 handle both AC and DC inputs? A: Yes, SPX2945M3-L-3-3 can handle both AC and DC inputs.

  5. Q: Is SPX2945M3-L-3-3 suitable for battery-powered applications? A: Yes, SPX2945M3-L-3-3 is suitable for battery-powered applications due to its low dropout voltage.

  6. Q: Does SPX2945M3-L-3-3 require any external components for operation? A: Yes, SPX2945M3-L-3-3 requires an input capacitor and an output capacitor for stable operation.

  7. Q: Can SPX2945M3-L-3-3 handle overcurrent or short-circuit conditions? A: Yes, SPX2945M3-L-3-3 has built-in overcurrent and short-circuit protection.

  8. Q: What is the typical dropout voltage of SPX2945M3-L-3-3? A: The typical dropout voltage of SPX2945M3-L-3-3 is around 0.2V at 1A load current.

  9. Q: Can SPX2945M3-L-3-3 operate in high-temperature environments? A: Yes, SPX2945M3-L-3-3 can operate in a temperature range of -40°C to +125°C.

  10. Q: Is SPX2945M3-L-3-3 available in different package options? A: Yes, SPX2945M3-L-3-3 is available in a SOT-223 package, which is a surface-mount package with three leads.

Please note that the answers provided here are general and may vary depending on the specific datasheet and manufacturer's specifications for SPX2945M3-L-3-3.