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LM320 Datasheet 3-terminal Negative Regulators

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM120/LM320 Series 3-Terminal Negative Regulators November 15, 2007 LM120/LM320 Series 3-Terminal Negative Regulators.

General Description

The LM120 series are three-terminal negative regulators with a fixed output voltage of −5V, −12V, and −15V, and up to 1.5A load current capability.

Where other voltages are required, the LM137 and LM137HV series provide an output voltage range of −1.2V to −47V.

The LM120 need only one external component—a compensation capacitor at the output, making them easy to apply.

Key Features

  • Preset output voltage error less than ±3%.
  • Preset current limit.
  • Internal thermal shutdown.
  • Operates with input-output voltage differential down to 1V.
  • Excellent ripple rejection.
  • Low temperature drift.
  • Easily adjustable to higher output voltage LM120 Series Packages and Power Capability Rated Design Device Package Power Load Dissipation Current LM120/LM320 TO-3 (K) 20W 1.5A TO-39 (H) 2W 0.5A LM320 TO-220 (T) 15W 1.5A Typical.

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