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LT3990

Part Number	LT3990
Manufacturer	Linear Technology
Description	350mA Step-Down Regulator
Published	Jan 18, 2010
Detailed Description	FEATURES n Low Ripple Burst Mode® Operation 2.5µA IQ at 12VIN to 3.3VOUT Output Ripple < 5mVP-P n Wide Input Volt...
Datasheet	LT3990 PDF File

Overview

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 12VIN n Accurate Programmable Undervoltage Lockout n FMEA Fault Tolerant (MSOP Package) Output Stays at or Below Regulation Voltage During Adjacent Pin Short or When a Pin is Left Floating n Low Shutdown Current: IQ = 0.
7µA n Internal Sense Limits Catch Diode Current n Power Good Flag n Small, Thermally Enhanced 16-Pin MSOP and (3mm × 3mm) DFN Packages APPLICATIONS n A...

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