Download LM2990 Datasheet PDF
LM2990 datasheet preview
LM2990 page 2
Page 2
LM2990 page 3
Page 3

LM2990 Key Features

  • 1 Input Voltage: -26 V to -6 V
  • Fixed Output Voltages: -5 V, -5.2 V, -12 V, and
  • 5% Output Accuracy over Entire Operating Range
  • Output Current in Excess of 1 A
  • Dropout Voltage Typically 0.6 V at 1-A Load
  • Low Quiescent Current
  • Internal Short-Circuit Current Limit
  • Internal Thermal Shutdown with Hysteresis
  • Functional plement to the LM2940 Series

Other LM2990 Datasheets

Manufacturer Part Number Description
National Semiconductor Logo National Semiconductor LM2990 Negative Low Dropout Regulator

View all LM2990 datasheets →

LM2990 Description

The LM2990 is a three-terminal, low-dropout, 1-A negative voltage regulator available with fixed output voltages of −5 V, −5.2 V, −12 V, and −15 V. The LM2990 uses circuit design techniques to provide low-dropout and low-quiescent current. The dropout voltage at 1-A load current is typically 0.6 V and an ensured worst-case maximum of 1 V over the entire operating temperature range.