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SPX3940AM3-3.3 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
SPX3940AM3-3.3EXAR4164Yes

SPX3940AM3-3.

The SPX3940AM3-3.3 is a low-dropout (LDO) voltage regulator manufactured by EXAR Corporation (now part to MaxLinear). Below are its factual specifications, descriptions, and features:

Specifications:

  • Output Voltage: 3.3V (fixed)
  • Output Current: 1A
  • Dropout Voltage: 340mV (typical at full load)
  • Input Voltage Range: 2.5V to 6V
  • Line Regulation: 0.05% (typical)
  • Load Regulation: 0.1% (typical)
  • Quiescent Current: 85µA (typical)
  • Operating Temperature Range: -40°C to +125°C
  • Package: SOT-223

Descriptions:

  • The SPX3940AM3-3.3 is a low-dropout linear regulator designed for applications requiring stable and precise 3.3V power supply.
  • It features low quiescent current, making it suitable for battery-powered devices.
  • Includes built-in protection features such as thermal shutdown and current limiting.

Features:

  • Low Dropout Voltage: Ensures efficient operation even with small input-output differentials.
  • Low Quiescent Current: Ideal for power-sensitive applications.
  • Thermal Shutdown Protection: Prevents damage from overheating.
  • Current Limit Protection: Safeguards against excessive load conditions.
  • Stable with Low-ESR Capacitors: Works reliably with ceramic or tantalum output capacitors.

This information is based on the manufacturer's datasheet and technical documentation.

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