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LM431AIM Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
LM431AIMNSC7497Yes

LM431AIM** is a precision programmable shunt regulator manufactured by **National Semiconductor (NSC)**.

The LM431AIM is a precision programmable shunt regulator manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:

Specifications:

  • Manufacturer: National Semiconductor (NSC)
  • Type: Adjustable Precision Shunt Regulator
  • Reference Voltage: 2.495V (Typical)
  • Voltage Range: 2.5V to 36V
  • Output Current: 1mA to 100mA
  • Tolerance: ±0.5%, ±1%, ±2% (depending on variant)
  • Operating Temperature Range: -40°C to +85°C
  • Package: SOIC-8 (LM431AIM)
  • Stability: Stable with capacitive loads
  • Low Dynamic Output Impedance: 0.2Ω (Typical)

Descriptions:

The LM431AIM is a three-terminal adjustable shunt regulator with thermal stability over the operating temperature range. It can be programmed over a wide voltage range (2.5V to 36V) using two external resistors. It is commonly used in power supply regulation, voltage monitoring, and precision voltage reference applications.

Features:

  • Adjustable Output Voltage (Vref = 2.495V)
  • Low Output Noise
  • Fast Turn-On Response
  • Low Temperature Drift
  • Wide Operating Current Range (1mA to 100mA)
  • Equivalent to Industry Standard TL431

This device is widely used in switching power supplies, battery chargers, and voltage reference circuits.

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