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MFG:21  Package Cooled:SEMTECH  

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Part Number: RT9172

 

MFG: 21

Package Cooled: SEMTECH

 

Description: The RT9172 series of low-dropout linear regulators operate from a +2.25V to +6.0V input supply. A wide range of preset ...


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RT9172 General Description


The RT9172 series of low-dropout linear regulators operate from a +2.25V to +6.0V input supply. A wide range of preset output voltage options is available.These low dropout linear regulators respond very fast to step changes in load, which are suitable for low voltage microprocessor applications. The RT9172 uses an internal PMOS as the pass device,which does not cause extra GND current in heavy load and dropout condition. The shutdown mode of low operation current makes the IC suitable for power-saving systems. The other features include current limiting and over temperature protection.

RT9172 Maximum Ratings

Input Voltage................... 6V
Power Dissipation......... Internally Limited
ESD Rating................... 3 kV
Storage Temperature Range... −65°C to 150°C
Lead Temperature (Soldering, 5 sec.).... 260°C
Package Thermal Resistance
TO-263, JC................. 8°C/W
TO-263, JA ...............19.4°C/W
TO-220, JC................. 8°C/W
TO-220, JA ................62°C/W
SOT-223, JC ................15°C/W
SOT-223, JA ................60°C/W
Junction Temperature Range... -40°C to +125°C

RT9172 Features

􀁺 Low Dropout Voltage
􀁺 Low Ground Pin Current
􀁺 Load Regulation of 0.4% at 3A
􀁺 0.5A Quiescent Current in Shutdown Mode
􀁺 Guaranteed Output Current of 3A DC
􀁺 Available in TO-263 and TO-220 Packages
􀁺 Output Voltage Accuracy ±1.5%
􀁺 Error Flag Indicates Output Status
􀁺 Sense Option Improves Better Load Regulation
􀁺 Extremely Low Output Capacitor Requirements
􀁺 Over-temperature/Over-current Protection

RT9172 Typical Application

􀁺 Microprocessor Power Supplies
􀁺 GTL, GTL+, BTL, and SSTL Bus Terminators
􀁺 Power Supplies for DSPs
􀁺 SCSI Terminator
􀁺 Post Regulators
􀁺 High Efficiency Linear Regulators
􀁺 Battery Chargers
􀁺 Other Battery Powered Applications

RT9172 Connection Diagram

RT9172  Connection DiagramRT9172  Connection DiagramRT9172  Connection Diagram

RT9172 datasheet

RT9172
PDF/DataSheet Download

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