LT3070MPUFD

LT3070MPUFD FEATURES

(15µF Minimum)Power Dissipation and Optimize Efficiency

LT3070MPUFD DESCRIPTION

The LT®3070 is a low voltage, UltraFast™ transient re-sponse linear regulator. The device supplies up to 5A ofoutput current with a typical dropout voltage of 85mV.A 0.01µF reference bypass capacitor decreases outputvoltage noise to 25µVRMS. The LT3070’s high bandwidthpermits the use of low ESR ceramic capacitors, savingbulk capacitance and cost. The LT3070’s features makeit ideal for high performance FPGAs, microprocessors orsensitive communication supply applications.Output voltage is digitally selectable in 50mV incrementsover a 0.8V to 1.8V range. A margining function allowsthe user to adjust system output voltage in increments of±1%, ±3% or ±5%. The IC incorporates a unique trackingfunction to control a buck regulator powering the LT3070’sinput. This tracking function drives the buck regulator tomaintain the LT3070’s input voltage to VOUT + 300mV,minimizing power dissipation.Internal protection includes UVLO, reverse-current protec-tion, precision current limiting with power foldback andthermal shutdown. The LT3070 regulator is available in athermally enhanced 28-lead, 4mm × 5mm QFN package.Dropout Voltage

LT3070MPUFD APPLICATIONS