Part LM340A
Description Series 3-Terminal Positive Regulators
Category Voltage Regulator
Manufacturer National Semiconductor
Size 512.68 KB
National Semiconductor

LM340A Overview

Description

The LM140/LM340A/LM340/LM7800C monolithic 3-terminal positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.0A output current.

Key Features

  • Output voltage tolerances of ± 2% at Tj = 25˚C and ± 4% over the temperature range (LM140A/LM340A)
  • Line regulation of 0.01% of VOUT/V of ∆VIN at 1A load (LM140A/LM340A)
  • Load regulation of 0.3% of VOUT/A (LM140A/LM340A)
  • Internal thermal overload protection
  • Internal short-circuit current limit
  • Output transistor safe area protection