LT3991-3.3, LT3991 - 1.2A Step-Down Regulator

Linear

Datasheet Details

Part number	LT3991-3.3, LT3991
Manufacturer	Linear
File Size	378.56 KB
Description	1.2A Step-Down Regulator
Datasheet	LT3991_LinearTechnology.pdf
Note	This datasheet PDF includes multiple part numbers: LT3991-3.3, LT3991. Please refer to the document for exact specifications by model.

The LT®3991 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 55V.

n Ultralow Quiescent Current: 2.8µA IQ Regulating 12VIN to 3.3VOUT n Fixed Output Voltages: 3.3V, 5V 2.1µA IQ Regulating 12VIN n Low Ripple Burst Mode® Operation: Output Ripple < 15mVP-P n Wide Input Voltage Range: 4.3V to 55V n 1.2A Maximum Output Current n Adjustable Switching Frequency: 200kHz to 2MHz n Synchronizable Between 250kHz to 2MHz n Fast Transient Response n Accurate 1V Enable Pin Threshold n Low Shutdown Current: IQ = 700nA n Power Good Flag n Soft-Start CapabilityV n.

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Published: Apr 19, 2016 |