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Up to 2 A step down switching regulator
The L5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.5 A so it is able to deliver more than 2 A DC current to the load depending on the application conditions.The output voltage can be set from 1.235 V to 35 V. The high current level is also... Read More
The L5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.5 A so it is able to deliver more than 2 A DC current to the load depending on the application conditions.
The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to an SO8 package with exposed frame, that allows to reduce the Rth(j-amb) down to approximately 40 �C/W.
The device uses an internal P-channel D-MOS transistor (with a typical Rdson of 250 mOhm) as switching element to minimize the size of the external components.
An internal oscillator fixes the switching frequency at 250 kHz.
Having a minimum input voltage of 4 V only, it is particularly suitable for 5 V bus, available in all computer related applications. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.
