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Partname:LT1939IDD-PBF
Description: Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller
Manufacturer:Linear Technology
Datasheet:PDF (347K).
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The LT1939 is a current mode PWM step-down DC/DC converter with an internal 2.3A switch. The wide input range of 3V to 25V makes the LT1939 suitable for regulating power from a wide variety of sources, including automotive batteries, industrial supplies and unregulated wall adapters.

Click here to download LT1939IDD-PBF Datasheet
Click here to download LT1939IDD-PBF Datasheet
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