Datasheet Details
Part number:
LT3991-3.3, LT3991
Manufacturer:
Linear
File Size:
378.56 KB
Description:
1.2a step-down regulator.
Note:
This datasheet PDF includes multiple part numbers: LT3991-3.3, LT3991.
Please refer to the document for exact specifications by model.
LT3991-3.3, LT3991, 1.2A Step-Down Regulator
The LT®3991 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 55V.
Low quiescent current design consumes only 2.8µA of supply current while regulating with no load.
Low ripple Burst Mode operation maintains high efficiency at low output curr
LT3991-3.3 Features
* 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: 2
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