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FA5311S（5311） Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
FA5311S（5311）FUJ154Yes

FA5311S (also known as 5311) is a switching regulator controller IC manufactured by Fuji Electric.

The FA5311S (also known as 5311) is a switching regulator controller IC manufactured by Fuji Electric. Below are the factual specifications, descriptions, and features:

Specifications:

  • Manufacturer: Fuji Electric
  • Type: Switching Regulator Controller
  • Package: SOP-8 (Small Outline Package, 8-pin)
  • Operating Voltage Range: Typically 8V to 30V
  • Switching Frequency: Adjustable (external components determine frequency)
  • Output Drive Capability: Directly drives power MOSFETs
  • Protection Features:
  • Overcurrent Protection (OCP)
  • Overvoltage Protection (OVP)
  • Undervoltage Lockout (UVLO)
  • Duty Cycle Range: Typically up to 80%
  • Operating Temperature Range: -20°C to +85°C

Descriptions:

The FA5311S is a PWM (Pulse Width Modulation) controller IC designed for DC-DC converter applications. It is commonly used in power supply circuits to regulate voltage efficiently. The IC integrates control logic, oscillator, and protection features, making it suitable for switch-mode power supplies (SMPS).

Features:

  • PWM Control: Provides precise voltage regulation.
  • Soft-Start Function: Reduces inrush current during startup.
  • Adjustable Frequency: External resistor/capacitor sets switching frequency.
  • Low Standby Current: Enhances efficiency in standby mode.
  • Error Amplifier: Ensures stable feedback control.
  • Compact Package: SOP-8 for space-saving designs.

This information is based on the manufacturer's datasheet and technical documentation. For detailed application circuits and performance characteristics, refer to the official Fuji Electric datasheet.

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