ET1117 ESTEK | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 8

Technical content

www.estek.com.cn C o p y r i g h t @ E s t e k E l e c t r o n i c s C o . , L t d Version 0.1 6 July 2011 1 1A Low Dropout Positive Voltage Regulator ‹ D e s c r i p t i o n ‹ Features The ET1117 series of positive adjustable and fixed regulators are designed to provide 1A with high efficiency. All internal circuitry is designed to operate down to 1.4V input to output differential. On-chip trimming adjusts the reference voltage to 1%. Current limit the typical value of 1.5A allow to minimize the stress on both the regulator and the power source circuitry under overload conditions. ‹ P i n D e s c r i p t i o n ‹ Applications ‹ Ordering Information Part Number Package Packing ET1117VI-XX SOT-223 Reel ET1117DI-XX SOT-89 Reel ET1117UI-XX TO-252 Reel ET1117GI-XX TO-263 Reel XX Output XX Output Blank Adj. 30 3.0V 15 1.5V 33 3.3V 18 1.8V 35 3.5V 25 2.5V 50 5.0V 28 2.85V ¾ High Efficiency Linear Regulators. ¾ Post Regulators for Switching Supplies. ¾ Adjustable Power Supply ¾ Adjustable or Fixed output. ¾ Output Current of 1A. ¾ Low Dropout, 1.3V typical at 1A Output Current. ¾ 0.04% Line Regulation. ¾ 0.2% Load Regulation. ¾ 100% Thermal Limit Burn-In. ¾ Fast Transient Response.

www.estek.com.cn C o p y r i g h t @ E s t e k E l e c t r o n i c s C o . , L t d Version 0.1 6 July 2011 2 ‹ Absolute Maximum Ratings Symbol Parameter Value Unit VIN Input Voltage 20 V VIN-VOUT Voltage Difference 10 V TJ Operating Junction Temperature Range -40 to 125 oC TSTG Storage Temperature -65 to 150 oC TLEAD Lead Temperature (Soldering, 10 sec.) 300 oC VESD Minimum ESD Rating (HBM) 2 KV ‹ Thermal Characteristics Symbol Parameter Package Typical Value Unit SOT-223 70 TO-252 55 θJA Thermal Resistance From Junction to Ambient in Free Air. (Measured with the component mounted on a high effective thermal conductivity test board in free air.) TO-263 50 oC/W ‹ Electrical Characteristics (Ta=25 °C, VKA=VREF, IK=10mA unless otherwise noted .) Symbol Parameter Test Condition Min. Typ. Max. Unit VIN=5V, ILoad=10mA 1.232 1.25 1.268 V VREF Reference Voltage VIN=2.65V to 13V, VIN -VOUT≦10V, ILoad=10mA to 1A 1.225 1.25 1.275 V VOUT Output Voltage (All fixed versions) VIN=VOUT+1.5V, Variator from nominal VOUT -1.5 - +1.5 % VD Dropout Voltage ILOAD=1A - 1.3 1.4 V REGLINE Line Regulation ILOAD=10mA, 1.5V≦VIN -VOUT≦10V - 0.04 0.2 % REGLOAD Load Regulation VIN=VOUT+1.5V, ILOAD=10mA to 1A - 0.2 0.4 % IO Minimum Load Current VIN=5V, VADJ=0V - 2 7 mA IQ Quiescent Current VIN=VOUT+1.5V, ILOAD=10mA to 1A - 3.5 10 mA IAdj Adjust Pin Current 1.5V≦VIN-VOUT≦10V, ILOAD=10mA - 35 60 uA ILIMIT Current Limit VIN-VOUT=1.5V 1 1.5 2 A PSRR Ripple Rejection VIN-VOUT=1.5V, ILOAD=1A 60 - - dB

www.estek.com.cn C o p y r i g h t @ E s t e k E l e c t r o n i c s C o . , L t d Version 0.1 6 July 2011 3 ‹ Block Diagram ‹ Typical Application Circuits

www.estek.com.cn C o p y r i g h t @ E s t e k E l e c t r o n i c s C o . , L t d Version 0.1 6 July 2011 4 ‹ Typical Characteristics

www.estek.com.cn C o p y r i g h t @ E s t e k E l e c t r o n i c s C o . , L t d Version 0.1 6 July 2011 5 ‹ Package Information SOT-223

www.estek.com.cn C o p y r i g h t @ E s t e k E l e c t r o n i c s C o . , L t d Version 0.1 6 July 2011 6 ‹ Package Information SOT-89

www.estek.com.cn C o p y r i g h t @ E s t e k E l e c t r o n i c s C o . , L t d Version 0.1 6 July 2011 7 ‹ Package Information TO-252

www.estek.com.cn C o p y r i g h t @ E s t e k E l e c t r o n i c s C o . , L t d Version 0.1 6 July 2011 8 ‹ Package Information TO-263