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    LT1071 Price and Stock

    Analog Devices Inc LT1071CT-PBF

    IC REG BUCK BST ADJ 2.5A TO220-5
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LT1071CT-PBF Tube 225 1
    • 1 $15.69
    • 10 $11.222
    • 100 $8.7922
    • 1000 $7.6875
    • 10000 $7.6875
    		Buy Now

    Analog Devices Inc LT1071IT-PBF

    IC REG BUCK BST ADJ 2.5A TO220-5
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LT1071IT-PBF Tube 107 1
    • 1 $13.28
    • 10 $9.916
    • 100 $9.916
    • 1000 $9.916
    • 10000 $9.916
    		Buy Now

    Analog Devices Inc LT1071CT-30PBF

    IC REG BUCK BST ADJ 2.5A TO220-5
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LT1071CT-30PBF Tube 53 1
    • 1 $15.37
    • 10 $10.978
    • 100 $15.37
    • 1000 $15.37
    • 10000 $15.37
    		Buy Now

    Analog Devices Inc LT1071CT-06PBF

    IC REG BUCK BST ADJ 2.5A TO220-5
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LT1071CT-06PBF Tube 50 1
    • 1 $15.69
    • 10 $11.222
    • 100 $8.7922
    • 1000 $7.6875
    • 10000 $7.6875
    		Buy Now

    Analog Devices Inc LT1071HVCT-PBF

    IC REG BUCK BST ADJ 2.5A TO220-5
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LT1071HVCT-PBF Tube 44 1
    • 1 $19.16
    • 10 $13.894
    • 100 $11.0345
    • 1000 $10.0375
    • 10000 $10.0375
    		Buy Now
    Find more LT1071 price and stock on Findchips.com

    LT1071 Datasheets (28)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    LT1071 Linear Technology Automotive Power Circuits Original PDF
    LT1071 Linear Technology 5A and 2.5A High Efficiency Switching Regulators Original PDF
    LT1071 Linear Technology 5A and 2.5A High Efficiency Switching Regulators Original PDF
    LT1071 Linear Technology A Battery Powered Lap Top Computer Power Supply Scan PDF
    LT1071CK Linear Technology 2.5 A High Efficiency Switching Regulator Original PDF
    LT1071CK Linear Technology 5A and 2.5A High Efficiency Switching Regulators Original PDF
    LT1071CKV Unknown Historical semiconductor price guide (US$ - 1998). From our catalog scanning project. Historical PDF
    LT1071CT Linear Technology IC REG STEP UP SWITCH FIX POS 65V 2.5A 5TO-220 Original PDF
    LT1071CT Linear Technology 5A and 2.5A High Efficiency Switching Regulators Original PDF
    LT1071CT#06PBF Linear Technology LT1071 - LT1071 - 5A and 2.5A High Efficiency Switching Regulators; Package: TO-220; Pins: 5; Temperature: Commercial Original PDF
    LT1071CT#30PBF Linear Technology LT1071 - LT1071 - 5A and 2.5A High Efficiency Switching Regulators; Package: TO-220; Pins: 5; Temperature: C Original PDF
    LT1071CT#PBF Linear Technology 5A and 2.5A High Efficiency Switching Regulators; Package: TO-220; No of Pins: 5; Temperature Range: 0°C to +70°C Original PDF
    LT1071HV Linear Technology 5A and 2.5A High Efficiency Switching Regulators Original PDF
    LT1071HVCK Linear Technology IC REG STEP UP SWITCH FIX POS 75V 2.5A 4TO-3 Original PDF
    LT1071HVCK Linear Technology 5A and 2.5A High Efficiency Switching Regulators Original PDF
    LT1071HVCT Linear Technology 2.5 A High Efficiency Switching Regulator Original PDF
    LT1071HVCT Linear Technology 5A and 2.5A High Efficiency Switching Regulators Original PDF
    LT1071HVCT#PBF Linear Technology 5A and 2.5A High Efficiency Switching Regulators; Package: TO-220; No of Pins: 5; Temperature Range: 0°C to +70°C Original PDF
    LT1071HVIT Linear Technology 2.5 A High Efficiency Switching Regulator Original PDF
    LT1071HVIT Linear Technology 5A and 2.5A High Efficiency Switching Regulators Original PDF

    LT1071 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    LT1074 design manual

    Abstract: LT1171 buck "buck converter" LT1076 LINEAR LT1070HV lt1070ct frequency and duty cycle control lt1070 cuk converter 5V 10A 200w dc to ac inverter Circuit diagram off-line flyback regulator 100w flyback 200w
    Text: LT1070/LT1071 5A and 2.5A High Efficiency Switching Regulators DESCRIPTION U FEATURES • ■ ■ ■ ■ ■ ■ ■ ■ ■ Wide Input Voltage Range: 3V to 60V Low Quiescent Current: 6mA Internal 5A Switch 2.5A for LT1071 Very Few External Parts Required


    Original     		PDF LT1070/LT1071 LT1071) For0/71 LT1074/LT1076 100kHz, LT1170/LT1171/ LT1172 100kHz LT1370/LT1371 500kHz LT1074 design manual LT1171 buck "buck converter" LT1076 LINEAR LT1070HV lt1070ct frequency and duty cycle control lt1070 cuk converter 5V 10A 200w dc to ac inverter Circuit diagram off-line flyback regulator 100w flyback 200w

    LT1070

    Abstract: LT1070HV LT1071 LT1071HV LINEAR LT1070HV
    Text: SPECIFICATION NOTICE LT1070/LT1071 March 1998 The specifications for the LT 1070 and LT1071 have been revised as shown in bold in the following table. For complete specifications, typical performance characteristics and applications information, please see the LT1070/LT1071 data sheet.


    Original     		PDF LT1070/LT1071 LT1071 LT1070/LT1071 LT1070 LT1071. LT1070HV LT1071HV sn10701 LINEAR LT1070HV

    LT1171 buck

    Abstract: op amp 40v 100w flyback transformer HV LT1765-1 AN19 AN25 LT1070 LT1071 LT1072 pin diagram of LM308 Op Amp IC
    Text: LT1070/LT1071 5A and 2.5A High Efficiency Switching Regulators DESCRIPTIO U FEATURES • ■ ■ ■ ■ ■ ■ ■ ■ ■ Wide Input Voltage Range: 3V to 60V Low Quiescent Current: 6mA Internal 5A Switch 2.5A for LT1071 Very Few External Parts Required


    Original     		PDF LT1070/LT1071 LT1071) O-220 100kHz, LT1170/LT1171/ LT1172 100kHz LT1370/LT1371 500kHz LT1374/LT1376 LT1171 buck op amp 40v 100w flyback transformer HV LT1765-1 AN19 AN25 LT1070 LT1071 LT1072 pin diagram of LM308 Op Amp IC

    LT1070CT

    Abstract: LT1070 simulation flyback converter pin diagram of LM308 Op Amp IC LT1074 design manual LT1172 boost converter 60v cuk converter 5V 10A LTspice LT1071 24V DC to 5V 1A DC flyback converter
    Text: LT1070/LT1071 5A and 2.5A High Efficiency Switching Regulators DESCRIPTIO U FEATURES • ■ ■ ■ ■ ■ ■ ■ ■ ■ Wide Input Voltage Range: 3V to 60V Low Quiescent Current: 6mA Internal 5A Switch 2.5A for LT1071 Very Few External Parts Required


    Original     		PDF LT1070/LT1071 1070/LT1071 T0-220 LT1072 com/product/LT1070 17-May-2011 LT1070CT LT1070 simulation flyback converter pin diagram of LM308 Op Amp IC LT1074 design manual LT1172 boost converter 60v cuk converter 5V 10A LTspice LT1071 24V DC to 5V 1A DC flyback converter

    LT1070

    Abstract: No abstract text available
    Text: SPECIFICATION NOTICE LT1070I/LT1071I/ LT1070HVI/LT1071HVI The electrical specifications of the LT 1070I/LT1071I and HVI are identical to those of the LT1070/LT1071C and M, except that operating temperature specifications apply for – 40°C to 85°C (ambient ) and – 40°C to 125°C (junction).


    Original     		PDF LT1070I/LT1071I/ LT1070HVI/LT1071HVI 1070I/LT1071I LT1070/LT1071C LT1070

    LT1070HVCT

    Abstract: flyback converter 2A 15V
    Text: LT1070/LT1071 5A and 2.5A High Efficiency Switching Regulators DESCRIPTIO FEATURES • ■ ■ ■ ■ ■ ■ ■ ■ U ■ Wide Input Voltage Range: 3V to 60V Low Quiescent Current: 6mA Internal 5A Switch 2.5A for LT1071 Very Few External Parts Required


    Original     		PDF LT1070/LT1071 LT1071) O-220 100kHz, LT1170/LT1171/ LT1172 100kHz LT1370/LT1371 500kHz LT1374/LT1376 LT1070HVCT flyback converter 2A 15V

    chopper transformer winding for 24v battery charging

    Abstract: hp laptop charging CIRCUIT diagram p50n05 43a Hall effect pin out 2N2219 transistor substitute PURE SINE WAVE inverter schematic diagram 2n3906 npn magnetic amplifier saturable core P50N05E pe-61592
    Text: Application Note 29 October 1988 Some Thoughts on DC/DC Converters Jim Williams and Brian Huffman INTRODUCTION Many systems require that the primary source of DC power be converted to other voltages. Battery driven circuitry is an obvious candidate. The 6V or 12V cell in a laptop computer must be converted to different potentials needed for


    Original     		PDF 1500pF CTX300-4 B-07T CTX33-4 D45C1 CTX-02-13949-X1 21-110J LT1533 an29f AN29-46 chopper transformer winding for 24v battery charging hp laptop charging CIRCUIT diagram p50n05 43a Hall effect pin out 2N2219 transistor substitute PURE SINE WAVE inverter schematic diagram 2n3906 npn magnetic amplifier saturable core P50N05E pe-61592

    sumida backlight inverter 12

    Abstract: LT1170 110092 27k 3kv LINEAR LT1171HV lt1171 LT1172HVIQ AN19 LT1070 LT1172
    Text: LT1170/LT1171/LT1172 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators U FEATURES • ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO Wide Input Voltage Range: 3V to 60V Low Quiescent Current: 6mA Internal 5A Switch 2.5A for LT1171, 1.25A for LT1172


    Original     		PDF 170/LT1 171/LT1172 100kHz, LT1171, LT1172) LT1172 LT1374 500kHz LT1375/LT1376 sumida backlight inverter 12 LT1170 110092 27k 3kv LINEAR LT1171HV lt1171 LT1172HVIQ AN19 LT1070

    LT1270

    Abstract: LT1071 buck 33 g07 1N5818 LT1071 LT1171 LT1271 LT1171 buck LT1170 equivalent LT1432-3.3
    Text: LT1432-3.3 3.3V High Efficiency Step-Down Switching Regulator Controller OBSOLETE: FOR INFORMATION PURPOSES ONLY Contact Linear Technology for Potential Replacement FEATURES • ■ ■ ■ ■ ■ ■ U ■ DESCRIPTIO Accurate Preset 3.3V Output Up to 87% Efficiency


    Original     		PDF LT1432-3 LT1171/LT1271 LTC1148 LT1432 LT1507 500kHz LT1270 LT1071 buck 33 g07 1N5818 LT1071 LT1171 LT1271 LT1171 buck LT1170 equivalent LT1432-3.3

    5962-9208001MPA

    Abstract: 8418001XA 5962-8688701CA 7703405XA 7703401YA 5962-8688701 5962-8684501IA 5962-3870701 7703402XA 5962-8859702XA
    Text: MILITARY PRODUCTS LINEAR TECHNOLOGY MILITARY PRODUCTS/ PROGRAMS Linear Technology Corporation LTC offers a comprehensive range of high performance analog/linear integrated circuits including; Data Converters, Interface devices, High Speed Amplifiers, Precision Operational


    Original     		PDF MIL-Q-9858 MIL-I-45208 LT1181AMJ/883 LT1280MJ/883 LT1281MJ/883 LTC485MJ8/883 LTC1045MJ/883 LTC1059MJ/883 LTC1060AMJ/883 LTC1060MJ/883 5962-9208001MPA 8418001XA 5962-8688701CA 7703405XA 7703401YA 5962-8688701 5962-8684501IA 5962-3870701 7703402XA 5962-8859702XA

    40A 48v charger Schematic Diagram

    Abstract: 12v step-down transformer operations files AUTOMATIC ROOM LIGHT CONTROLLER with visitor counter bjt Self-Oscillating Flyback Converters ZVS Royer Self-Oscillating mobile charger 24V 20A SIEMENS battery charger spice model SFH213 fluorescent lamp driver 4W T5 3.1v to 350v ZENER DIODE
    Text: LINEAR TECHNOLOGY NOVEMBER 2000 IN THIS ISSUE… COVER ARTICLE 3MHz Synchronous Boost Regulators Save Critical Board Space in Portable Applications . 1 Mark Jordan Issue Highlights . 2 LTC in the News . 2


    Original     		PDF OT-23 10MHz D-70567 40A 48v charger Schematic Diagram 12v step-down transformer operations files AUTOMATIC ROOM LIGHT CONTROLLER with visitor counter bjt Self-Oscillating Flyback Converters ZVS Royer Self-Oscillating mobile charger 24V 20A SIEMENS battery charger spice model SFH213 fluorescent lamp driver 4W T5 3.1v to 350v ZENER DIODE

    5962-9208001MPA

    Abstract: QML-38535 5962-3870701MPA MIL-STD 833 test method 3015 LT119AH 5962-8956201 JM38510/01405BEA 5962-8951101EA LT1003 5962-8875101VA
    Text: MILITARY PRODUCTS 12-1 INDEX MILITARY PRODUCTS SECTION 12—MILITARY PRODUCTS INDEX . 12-2 MILITARY PRODUCTS/PROGRAMS . 12-3


    Original     		PDF 12--MILITARY MIL-M-38535 LTC485MJ8/883 LTC1045MJ/883 LTC1059MJ/883 LTC1060AMJ/883 LTC1060MJ/883 LTC1061AMJ/883 LTC1061MJ/883 5962-9208001MPA QML-38535 5962-3870701MPA MIL-STD 833 test method 3015 LT119AH 5962-8956201 JM38510/01405BEA 5962-8951101EA LT1003 5962-8875101VA

    5962-9208001MPA

    Abstract: RH1079 LTC1064-1AMJ LT1021BMH-5 8601402CA 5962-8875101VA 5962-8767502XA 8418001XA LT119AH RH1021-10
    Text: Military Products InfoCard 16 Microcircuit Part Numbering System 5962 - 94* XXX ZZ B Y Y Fed Stock Class Designator Microcircuits Last 2 Digits of FY in Which the Dwg No was Assigned Dwg No in That FY Type No Rad Hard Identifier Lead Finish Package Designator


    Original     		PDF MIL-STD-883 MIL-M-38510 MIL-M-38510 g/339) 1001AMH, LT1001MH, LT1002AMJ 1-800-4-LINEAR 5962-9208001MPA RH1079 LTC1064-1AMJ LT1021BMH-5 8601402CA 5962-8875101VA 5962-8767502XA 8418001XA LT119AH RH1021-10

    car subwoofer amplifier schematic circuit diagram

    Abstract: CAR SUBWOOFER 200W AMP car 12 volts amplifier mosfet 200w rms 12v subwoofer car amp circuits 12v 50 watt subwoofer shan circuit diagram 12v 200W subwoofer CIRCUIT DIAGRAM subwoofer 1000 watts amplifier subwoofer Amplifier 200w schematic diagrams 12v subwoofer amp circuits IRF9640 LT1210
    Text: LINEAR TECHNOLOGY AUGUST 1996 IN THIS ISSUE . . . COVER ARTICLE Safe Hot Swapping Using the LTC 1421 . 1 Robert Reay and James Herr VOLUME VI NUMBER 3 Safe Hot Swapping Using the LTC1421 by Robert Reay and James Herr Issue Highlights . 2


    Original     		PDF LTC1421 LTC1433/LTC1434: LTC1343 LTC1344 DB-25 S-191 1-800-4-LINEAR car subwoofer amplifier schematic circuit diagram CAR SUBWOOFER 200W AMP car 12 volts amplifier mosfet 200w rms 12v subwoofer car amp circuits 12v 50 watt subwoofer shan circuit diagram 12v 200W subwoofer CIRCUIT DIAGRAM subwoofer 1000 watts amplifier subwoofer Amplifier 200w schematic diagrams 12v subwoofer amp circuits IRF9640 LT1210

    irf3205 pspice

    Abstract: tokin 473 5.5v tokin lcd inverter irf3205 pinout STR Handbook, General electric snubber IRF3205 AD7543 IRF3205 501-0726 lt1339 application note inverter tokin lcd nec
    Text: LINEAR TECHNOLOGY NOVEMBER 1997 IN THIS ISSUE… COVER ARTICLE New 16-Bit SO-8 DAC Has 1LSB Max INL and DNL Over Industrial Temperature . 1 Jim Brubaker and William C. Rempfer Issue Highlight . 2 LTC in the News . 2


    Original     		PDF 16-Bit 500kHz, LT1581 LT1370: LTC1504: 500mA 1-800-4-LINEAR irf3205 pspice tokin 473 5.5v tokin lcd inverter irf3205 pinout STR Handbook, General electric snubber IRF3205 AD7543 IRF3205 501-0726 lt1339 application note inverter tokin lcd nec

    schematic diagram inverter 5000w

    Abstract: power amplifier 5000W with PCB schematic diagram inverter 5000w USING MOSFET 5000w power amplifier circuit diagram 5000w audio amplifier circuit diagram 12v 5000W AUDIO AMPLIFIER CIRCUIT DIAGRAM 5000w two transistor forward converter 5 channels 5000w audio amplifier circuit diagram 5000w mosfet power amplifier circuit diagram Sony Semiconductor Replacement Handbook 1991
    Text: LINEAR TECHNOLOGY SEPTEMBER 1999 IN THIS ISSUE… Four New Amplifiers Serve Many Applications . 1 Issue Highlights . 2 LTC in the News… . 2 DESIGN FEATURES JFET Op Amps Equal Low Noise


    Original     		PDF 100MHz, 300MHz S-191 1-800-4-LINEAR schematic diagram inverter 5000w power amplifier 5000W with PCB schematic diagram inverter 5000w USING MOSFET 5000w power amplifier circuit diagram 5000w audio amplifier circuit diagram 12v 5000W AUDIO AMPLIFIER CIRCUIT DIAGRAM 5000w two transistor forward converter 5 channels 5000w audio amplifier circuit diagram 5000w mosfet power amplifier circuit diagram Sony Semiconductor Replacement Handbook 1991

    LT10711

    Abstract: No abstract text available
    Text: LT1071, LT1071HV 2.5-A HIGH-EFFICIENCY SWITCHING REGULATORS D3344, JULY 19B 9-R E V IS E D A U G U S T 1991 Wide Supply-Voltage Range: LT1071HV . . . 3 V to 60 V LT1071 . . . 3 V to 40 V KC AND KV PACKAGE KV Package Used for Illustration (TOP VIEW) Low Quiescent Current. . . 6 mA Typ


    OCR Scan     		PDF LT1071, LT1071HV D3344, LT1071HV LT1071 LT1071HVCKC LT1071CKC LT1071HVIKC LT1071IKC LT10711

    LT1070

    Abstract: flyback 200w switch mode power supply 12V,2A 92113 LT1070 data sheet ci lt1070 dc dc flyback 200w lt1070ct LT1071 cuk converter 5V 10A
    Text: LT1070/LT1Q71 5A and 2.5A High Efficiency Switching Regulators F€ATUR€S • Wide Input Voltage Range 3V-60V ■ Low Quiescent Current—6mA ■ Internal 5A Switch 2.5A for LT1071 ■Very Few External Parts Required ■ Self-Protected Against Overloads


    OCR Scan     		PDF LT1070/LT1071 V-60V LT1071) 50/tA LT1072 O-220 LT1070MK, LT1070HVMK LT1070CT, LT1070HVCT LT1070 flyback 200w switch mode power supply 12V,2A 92113 LT1070 data sheet ci lt1070 dc dc flyback 200w lt1070ct LT1071 cuk converter 5V 10A

    ec 35c transformer

    Abstract: ltkd lti070 lt1070 lt1071 switch mode power supply 12V,2A LT1070HVCT
    Text: LT1070/LT1Q71 r j w m TECHNOLOGY F€ATUR€S • Wide Input Voltage Range 3V-60V ■ Low Quiescent Current—6mA ■ Internal 5A Switch 2.5A for LT1071 ■ Very Few External Parts Required ■ Self-Protected Against Overloads ■ Operates in Nearly All Switching Topologies


    OCR Scan     		PDF LT1070/LT1Q71 LT1070 LT1071 LT1070/LT1071 orTO-220 LT1070/LT1071 T0-220Type LT1070MK, LT1070HVMK ec 35c transformer ltkd lti070 switch mode power supply 12V,2A LT1070HVCT

    LT/SG3527A

    Abstract: No abstract text available
    Text: / T u r LT1070/LT1071 m TECHNOLOGY 5A and 2.5A High Efficiency Switching Regulators F€ A T U A € S D C S C A IP TIO fl • W ide Input Voltag e Rang e 3 V -6 0 V The L T 1 0 7 0 and L T 1 0 7 1 are m onolithic high p ow e r sw itch­ ■ Lo w Q u ie sc e n t C u rren t—6 m A


    OCR Scan     		PDF LT1070/LT1071 LT/SG3527A

    LT1071

    Abstract: No abstract text available
    Text: r r u u _ L T 1 Q 7 Q / L T 1 071 m TECHNOLOGY 5A and 2.5A High Efficiency Switching Regulators FCRTURCS D C S C R IP TIO n • ■ ■ ■ ■ ■ ■ ■ ■ ■ The LT 1070/LT1071 are monolithic high power switch­ ing regulators. They can be operated in all standard switch­


    OCR Scan     		PDF 1070/LT1071 LT1070/LT1071 T0-220 LT1074/LT1076 100kHz, LT1170/LT1171/ LT1172 100kHz LT1370/LT1371 500kHz LT1071

    Transistor ge 718

    Abstract: transistor number D 2498 S/transistor number D 2498
    Text: /TLiriÇ A B LT1431 TECHNOLOGY Programmable Reference F€flTUR€S D C SC R IPTIO n • ■ ■ ■ ■ The LT1431 is an adjustable shunt voltage regulator with 100m A sink capability, 0.4% initial reference voltage tolerance, and 0,3% typical tem perature stability. On-chip


    OCR Scan     		PDF LT1431 LT1431 PL1V221M PHILIPS-BAT85 BR330 CTX50-3-MP Transistor ge 718 transistor number D 2498 S/transistor number D 2498

    RH1056A

    Abstract: LT1003
    Text: L I N E A R _ RH1Q14M TECHNOLOGY Quad Precision Operational Amplifier IKSCM PTIOn naso iuTC m nxim um RnnnG S The RH1014M is the first precision quad operational amplifier which directly upgrades designs in the industry standard 8-pin DIP LM124/LM148/0P-11/5156 pin con­


    OCR Scan     		PDF RH1Q14M RH1014M LM124/LM148/0P-11/5156 CA95035-7417 RH1056A LT1003

    phillips 031 ko Capacitor

    Abstract: laptop mother board voltage details LT1432 LT107C amplifier circuit diagram techno 5a schematic diagram of laptop inverter LT1171 buck npn fet EI type bobbin 8 pin ic used in laptop
    Text: | Ar* *« _ u rre A ß TECHNOLO GY LT1432 5 v High E fficie n cy S te p -D o w n S w itch in g R e g u la to r C o n tro lle r F€fiTUR€S DCSCMPTIOn • ■ ■ ■ ■ ■ ■ ■ The LT1432 is a control chip designed to operate with the LT1170/LT1270 family of switching regulators to make a


    OCR Scan     		PDF LT1432 50juH LT1432 LT1170/LT1270 150X/W 170-CAV GP0392 10KREV0 phillips 031 ko Capacitor laptop mother board voltage details LT107C amplifier circuit diagram techno 5a schematic diagram of laptop inverter LT1171 buck npn fet EI type bobbin 8 pin ic used in laptop