Datasheet Details
Part number:
LT3990-3.3, LT3990
Manufacturer:
File Size:
701.89 KB
Description:
350ma step-down regulator.
Note:
This datasheet PDF includes multiple part numbers: LT3990-3.3, LT3990.
Please refer to the document for exact specifications by model.
LT3990-3.3, LT3990, 350mA Step-Down Regulator
The LT®3990 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 62V, and consumes only 2.5µA of quiescent current.
A high efficiency switch is included on the die along with the catch diode, boost diode, and the necessary oscillator, control a
LT3990-3.3 Features
* n Low Ripple Burst Mode® Operation 2.5µA IQ at 12VIN to 3.3VOUT Output Ripple < 5mVP-P n Wide Input Voltage Range: 4.2V to 62V Operating n Adjustable Switching Frequency: 200kHz to 2.2MHz n Integrated Boost and Catch Diodes n 350mA Output Current n Fixed Output Voltages: 3.3V, 5V 2µA IQ at 12
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