Monolithic power controller - Allicdata Electronics

Related Categories

< 22 23 24 25 26 >

Allicdata Part#	Mft.Part#	Company	Spec.	QTY.	Pricing(USD)
MP8640DL-LF-Z-N D	MP8640DL-LF-Z	Monolithic Power Systems Inc.	View more Series: * Packaging: Tape & Reel (TR) Part Status: Active	1000 Order	--
MP28258DD-A-LF- P-ND	MP28258DD-A-LF- P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 4.2V Voltage - Input (Max): 20V Voltage - Output (Min/Fixed): 0.815V Voltage - Output (Max): 13V Current - Output: 3A Synchronous Rectifier: Yes Operating Temperature: -40C ~ 85C (TA) Mounting Type: Surface Mount Package / Case: 12-TFQFN Exposed Pad Supplier Device Package: 12-QFN (2x3)	1000 Order	500+: $1.2445
MPQ2451DT-LF-P- ND	MPQ2451DT-LF-P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Not For New Designs Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 3.3V Voltage - Input (Max): 36V Voltage - Output (Min/Fixed): 0.8V Voltage - Output (Max): 32.4V Current - Output: 600mA Frequency - Switching: 2MHz Synchronous Rectifier: No Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: SOT-23-6 Supplier Device Package: SOT-23-6L	1000 Order	500+: $1.2445
MPQ2143DJ-AEC1- P-ND	MPQ2143DJ-AEC1- P	Monolithic Power Systems Inc.	View more Series: Automotive, AEC-Q100 Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 2.5V Voltage - Input (Max): 5.5V Voltage - Output (Min/Fixed): 0.6V Voltage - Output (Max): 5V Current - Output: 3A Frequency - Switching: 1.2MHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ)	1000 Order	500+: $1.2968
MP62341DS-1-LF- ND	MP62341DS-1-LF	Monolithic Power Systems Inc.	View more Packaging: Tube Part Status: Active Switch Type: General Purpose Number of Outputs: 2 Ratio - Input:Output: 1:2 Output Configuration: High Side Interface: On/Off Voltage - Load: 2.7 V ~ 5.5 V Voltage - Supply (Vcc/Vdd): Not Required Current - Output (Max): 1A Rds On (Typ): 85 mOhm Features: Load Discharge, Status Flag Fault Protection: Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO Operating Temperature: -40C ~ 85C (TA) Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	1000 Order	100+: $0.7409
MP3352DQ-LF-Z-N D	MP3352DQ-LF-Z	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Type: DC DC Regulator Topology: Flyback Internal Switch(s): Yes Number of Outputs: 1 Voltage - Supply (Min): 3V Voltage - Supply (Max): 6V Voltage - Output: 60V Applications: Camera Flash Operating Temperature: -40C ~ 85C (TA) Mounting Type: Surface Mount Package / Case: 16-VFQFN Exposed Pad Supplier Device Package: 16-QFN-3-EP	1000 Order	5000+: $0.5897
MPQ3386DR-AEC1- LF-Z-ND	MPQ3386DR-AEC1- LF-Z	Monolithic Power Systems Inc.	View more Series: * Part Status: Active	1000 Order	5000+: $1.5402
MPQ2483ADS-LF-N D	MPQ2483ADS-LF	Monolithic Power Systems Inc.	View more Packaging: Tube Part Status: Active Type: DC DC Regulator Topology: Step-Down (Buck), Step-Up (Boost) Internal Switch(s): Yes Number of Outputs: 1 Voltage - Supply (Min): 4.5V Voltage - Supply (Max): 55V Current - Output / Channel: 2.5A Frequency: 250kHz Dimming: Analog, PWM Applications: Automotive, Backlight Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: 14-SOIC (0.154", 3.90mm Width) Supplier Device Package: 14-SOIC	1000 Order	50+: $2.0412
MP8126DF-LF-Z-N D	MP8126DF-LF-Z	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Applications: Converter, LNB Voltage - Input: 8 V ~ 14 V Number of Outputs: 1 Voltage - Output: 13V, 14V, 18V, 19V Operating Temperature: -40C ~ 125C Mounting Type: Surface Mount Package / Case: 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Supplier Device Package: 16-TSSOP-EP	1000 Order	2500+: $0.6549
1589-1531-2-ND	MP1542DK-LF-Z	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Up Output Configuration: Positive Topology: Boost Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 2.5V Voltage - Input (Max): 22V Voltage - Output (Min/Fixed): 3V Voltage - Output (Max): 22V Current - Output: 2A (Switch) Frequency - Switching: 1.3MHz Synchronous Rectifier: No Operating Temperature: -40C ~ 85C (TA) Mounting Type: Surface Mount Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Supplier Device Package: 8-MSOP	2500 Order	--
1589-1031-2-ND	MP1499GD-P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 4.5V Voltage - Input (Max): 16V Voltage - Output (Min/Fixed): 0.807V Voltage - Output (Max): 13V Current - Output: 5A Frequency - Switching: 500kHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: 10-VFDFN Supplier Device Package: 10-QFN (3x2)	1000 Order	500+: $1.0981 1000+: $0.9261 2500+: $0.8798 5000+: $0.8467
1589-1021-2-ND	MP1474SGJ-P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 4.5V Voltage - Input (Max): 16V Voltage - Output (Min/Fixed): 0.8V Voltage - Output (Max): 15.2V Current - Output: 2A Frequency - Switching: 500kHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: SOT-23-8 Thin, TSOT-23-8 Supplier Device Package: TSOT-23-8	1000 Order	500+: $0.7497
1589-1740-2-ND	MP8864GQ-Z	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Programmable Number of Outputs: 1 Voltage - Input (Min): 4.5V Voltage - Input (Max): 21V Voltage - Output (Min/Fixed): 0.6V Voltage - Output (Max): 1.87V Current - Output: 4A Frequency - Switching: 600kHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ)	1000 Order	--
1589-1904-1-ND	MP3120DJ-LF-ZX	Monolithic Power Systems Inc.	View more Packaging: Cut Tape (CT) Part Status: Active Function: Step-Up Output Configuration: Positive Topology: Boost Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 0.8V Voltage - Input (Max): 5V Voltage - Output (Min/Fixed): 2.5V Voltage - Output (Max): 5V Current - Output: 1.2A Frequency - Switching: 1.05MHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 85C (TA) Mounting Type: Surface Mount Package / Case: SOT-23-6 Thin, TSOT-23-6 Supplier Device Package: TSOT-23-6	3000 Order	1+: $1.2852 10+: $1.163 25+: $1.0382 100+: $0.9344 250+: $0.8306 500+: $0.7268 1000+: $0.6022
MPQ2122GJ-Z-ND	MPQ2122GJ-Z	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 2 Voltage - Input (Min): 2.7V Voltage - Input (Max): 6V Voltage - Output (Min/Fixed): 0.608V Voltage - Output (Max): 5.5V Current - Output: 2A Frequency - Switching: 1MHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ)	1000 Order	3000+: $0.7655
MP2454GQ-P-ND	MP2454GQ-P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 3.3V Voltage - Input (Max): 36V Current - Output: 600mA Frequency - Switching: 2.3MHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ)	1000 Order	500+: $1.0143
MP2240GJ-P-ND	MP2240GJ-P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 6V Voltage - Input (Max): 16V Voltage - Output (Min/Fixed): 0.8V Voltage - Output (Max): 14.4V Current - Output: 3A Frequency - Switching: 800kHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: SOT-23-8 Thin, TSOT-23-8 Supplier Device Package: TSOT-23-8	1000 Order	500+: $1.0253
1589-1365-ND	MP2362DF-LF	Monolithic Power Systems Inc.	View more Packaging: Tube Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 2 Voltage - Input (Min): 4.75V Voltage - Input (Max): 23V Voltage - Output (Min/Fixed): 1.22V Voltage - Output (Max): 16V Current - Output: 2A Frequency - Switching: 380kHz Synchronous Rectifier: No Operating Temperature: -40C ~ 85C (TA) Mounting Type: Surface Mount Package / Case: 20-TSSOP (0.173", 4.40mm Width) Exposed Pad Supplier Device Package: 20-TSSOPF	1000 Order	75+: $2.8634
1589-1610-2-ND	MP2615GQ-Z	Monolithic Power Systems Inc.	View more Series: MP2615 Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Lithium-Ion/Polymer Number of Cells: 1 ~ 2 Current - Charging: Constant - Programmable Programmable Features: Timer Fault Protection: Over Current, Over Temperature Charge Current - Max: 2A Battery Pack Voltage: 8.4V Voltage - Supply (Max): 18V Operating Temperature: -40C ~ 85C (TA) Package / Case: 16-VFQFN Supplier Device Package: 16-QFN (3x3) Base Part Number: MP2615	1000 Order	--
MP2608DQ-LF-P-N D	MP2608DQ-LF-P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Lithium-Ion/Polymer Number of Cells: 1 Current - Charging: Constant - Programmable Programmable Features: Timer Fault Protection: Over Temperature, Over Voltage Charge Current - Max: 1A Battery Pack Voltage: 4.2V Voltage - Supply (Max): 5.5V Interface: USB Operating Temperature: -40C ~ 85C (TA) Package / Case: 10-VFDFN Exposed Pad Supplier Device Package: 10-QFN (3x3)	1000 Order	500+: $0.8489
MPM6010GQV-AEC1 -Z-ND	MPM6010GQV-AEC1 -Z	Monolithic Power Systems Inc.	View more Series: Automotive, AEC-Q100 Part Status: Active Type: Constant Current Topology: Buck Number of Outputs: 1 Voltage - Input (Min): 4V Voltage - Input (Max): 36V Current - Output (Max): 1.5A Dimming: PWM Features: OCP, OTP, SCP, UVLO Operating Temperature: -40C ~ 125C Mounting Type: Surface Mount Package / Case: 17-PowerLQFN Size / Dimension: 0.12" L x 0.20" W x 0.06" H (3.0mm x 5.0mm x 1.7mm) Packaging: Tape & Reel (TR)	1000 Order	2500+: $2.2113
MPM6010GQVE-AEC 1-P-ND	MPM6010GQVE-AEC 1-P	Monolithic Power Systems Inc.	View more Series: Automotive, AEC-Q100 Part Status: Active Type: Constant Current Topology: Buck Number of Outputs: 1 Voltage - Input (Min): 4V Voltage - Input (Max): 36V Current - Output (Max): 1.5A Dimming: PWM Features: OCP, OTP, SCP, UVLO Operating Temperature: -40C ~ 125C Mounting Type: Surface Mount Package / Case: 17-PowerLQFN Size / Dimension: 0.12" L x 0.20" W x 0.06" H (3.0mm x 5.0mm x 1.7mm) Packaging: Tape & Reel (TR)	1000 Order	500+: $3.0467
MA750GQ-Z-ND	MA750GQ-Z	Monolithic Power Systems Inc.	View more Part Status: Active For Measuring: Angle Technology: Hall Effect Output: PWM, SPI Actuator Type: External Magnet, Not Included Voltage - Supply: 3 V ~ 3.6 V Mounting Type: Surface Mount Termination Style: SMD (SMT) Tab Operating Temperature: -40C ~ 125C	1000 Order	--
MP3309GQG-Z-ND	MP3309GQG-Z	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Type: DC DC Regulator Topology: Step-Up (Boost) Internal Switch(s): Yes Number of Outputs: 1 Voltage - Supply (Min): 2.7V Voltage - Supply (Max): 5.5V Voltage - Output: 35V Current - Output / Channel: 1.5A Frequency: 640kHz Dimming: Analog, PWM Applications: Backlight Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: 10-VFQFN Supplier Device Package: 10-QFN (1.8x1.4)	1000 Order	--
MP4034GS-ND	MP4034GS	Monolithic Power Systems Inc.	View more Packaging: Tube Part Status: Active Type: AC DC Offline Switcher Topology: Flyback Internal Switch(s): Yes Number of Outputs: 1 Voltage - Supply (Min): 6.6V Voltage - Supply (Max): 28V Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width), 7 Leads Supplier Device Package: 8-SOIC-7B	1000 Order	100+: $0.7409
1589-1640-2-ND	MP3421GG-Z	Monolithic Power Systems Inc.	View more Series: MP3421 Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Up Output Configuration: Positive Topology: Boost Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 1.9V Voltage - Input (Max): 5.5V Voltage - Output (Min/Fixed): 2.5V Voltage - Output (Max): 5.5V Current - Output: 5.5A Frequency - Switching: 600kHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: 14-PowerVFQFN Supplier Device Package: 14-QFN (2x2) Base Part Number: MP3421GG-Z	5000 Order	--
1589-1577-2-ND	MP2308GD-Z	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 4.75V Voltage - Input (Max): 18V Voltage - Output (Min/Fixed): 0.815V Voltage - Output (Max): 16.2V Current - Output: 4A Frequency - Switching: 300kHz ~ 2MHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: 14-VFQFN Exposed Pad Supplier Device Package: 14-FCQFN (2x3)	1000 Order	--
1589-1801-2-ND	MPQ4473GL-AEC1- Z	Monolithic Power Systems Inc.	View more Series: Automotive, AEC-Q100 Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 4.5V Voltage - Input (Max): 36V Voltage - Output (Min/Fixed): 0.8V Voltage - Output (Max): 32.4V Current - Output: 3.5A Frequency - Switching: 200kHz ~ 1MHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ)	1000 Order	5000+: $1.7096
MP6211DN-LF-Z-N D	MP6211DN-LF-Z	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Switch Type: General Purpose Number of Outputs: 1 Ratio - Input:Output: 1:1 Output Configuration: High Side Interface: On/Off Voltage - Load: 2.7 V ~ 5.5 V Voltage - Supply (Vcc/Vdd): Not Required Current - Output (Max): 1A Rds On (Typ): 90 mOhm Features: Status Flag Fault Protection: Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO Operating Temperature: -40C ~ 85C (TA) Package / Case: 8-SOIC (0.154", 3.90mm Width) Exposed Pad Supplier Device Package: 8-SOICE	1000 Order	2500+: $0.2558
1589-1133-2-ND	MP2602DQ-LF-P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 1 Current - Charging: Constant - Programmable Programmable Features: Current Fault Protection: Over Current, Over Temperature, Over Voltage Charge Current - Max: 1A Battery Pack Voltage: 4.2V Voltage - Supply (Max): 5.5V Operating Temperature: -40C ~ 85C (TA) Package / Case: 10-VFDFN Exposed Pad Supplier Device Package: 10-QFN (3x3)	1000 Order	--
MP6536DU-LF-P-N D	MP6536DU-LF-P	Monolithic Power Systems Inc.	View more Series: * Part Status: Active	1000 Order	500+: $1.3282
MP163CGS-5-ND	MP163CGS-5	Monolithic Power Systems Inc.	View more Series: * Part Status: Active	1000 Order	100+: $0.7513
MPQ20073DH-AEC1 -LF-ND	MPQ20073DH-AEC1 -LF	Monolithic Power Systems Inc.	View more Series: * Part Status: Active	1000 Order	50+: $0.8505
1589-1096-2-ND	MP2227DQ-LF-P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Not For New Designs Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 3V Voltage - Input (Max): 24V Voltage - Output (Min/Fixed): 0.8V Voltage - Output (Max): 21.6V Current - Output: 3A Frequency - Switching: 1.3MHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 85C (TA) Mounting Type: Surface Mount Package / Case: 10-VFDFN Exposed Pad Supplier Device Package: 10-QFN (3x3)	1000 Order	--
1589-1746-2-ND	MP9457GF-Z	Monolithic Power Systems Inc.	View more Series: * Packaging: Tape & Reel (TR) Part Status: Active	2500 Order	--
MP2141NGTF-18-Z -ND	MP2141NGTF-18-Z	Monolithic Power Systems Inc.	View more Series: * Packaging: Tape & Reel (TR) Part Status: Active	1000 Order	5000+: $0.3771
MP1477HGTF-P-ND	MP1477HGTF-P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 4.2V Voltage - Input (Max): 17V Voltage - Output (Min/Fixed): 0.8V Voltage - Output (Max): 10V Current - Output: 3A Frequency - Switching: 1.2MHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: SOT-563, SOT-666 Supplier Device Package: SOT-563	1000 Order	500+: $0.6946
MP2148GQD-18-P- ND	MP2148GQD-18-P	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Fixed Number of Outputs: 1 Voltage - Input (Min): 2.3V Voltage - Input (Max): 5.5V Voltage - Output (Min/Fixed): 1.8V Current - Output: 1A Frequency - Switching: 2.2MHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: 6-VFDFN Supplier Device Package: 6-QFN (1x1.5)	1000 Order	500+: $0.7938
MP8869WGL-Z-ND	MP8869WGL-Z	Monolithic Power Systems Inc.	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Programmable Number of Outputs: 1 Voltage - Input (Min): 3V Voltage - Input (Max): 18V Voltage - Output (Min/Fixed): 0.6V Voltage - Output (Max): 1.5V Current - Output: 12A Frequency - Switching: 500kHz Synchronous Rectifier: Yes Operating Temperature: -40C ~ 125C (TJ) Mounting Type: Surface Mount Package / Case: 14-VFDFN Exposed Pad Supplier Device Package: 14-QFN (3x4)	1000 Order	5000+: $1.2822
MP24943DS-LF-ND	MP24943DS-LF	Monolithic Power Systems Inc.	View more Packaging: Tube Part Status: Active Function: Step-Down Output Configuration: Positive Topology: Buck Output Type: Adjustable Number of Outputs: 1 Voltage - Input (Min): 4.5V Voltage - Input (Max): 55V Voltage - Output (Min/Fixed): 0.8V Voltage - Output (Max): 45V Current - Output: 3A Frequency - Switching: 100kHz Synchronous Rectifier: No Operating Temperature: -40C ~ 85C (TA) Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	1000 Order	100+: $1.4465

< 22 23 24 25 26 >

Hot Searches: monolithic power controller monolithic power monitor monolithic power management power power controller monolithic lighting controller monolithic ballast controller monolithic motor controllers monolithic controller ic power controller pmic abb power controller ablic power controller allegro power controller alpha power controller omega power controller analog power controller bel power controller dialog power controller diodes power controller infineon power controller intel power controller

Search Result:monolithic power controller

Related Categories