Call us: +86 0755-82563503

Currency: $ US Dollar

Items : %s%s

DC DC Voltage Regulators

Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Lifecycle Status Mount Packaging Published Part Status Moisture Sensitivity Level (MSL) Number of Terminations ECCN Code Length RoHS Status Lead Free Number of Pins Additional Feature Package / Case REACH SVHC Frequency Width Mounting Type Operating Temperature Technology Height Seated (Max) Number of Functions Voltage - Input (Max) JESD-609 Code Terminal Finish Terminal Position Terminal Form Peak Reflow Temperature (Cel) Time@Peak Reflow Temperature-Max (s) Base Part Number Pin Count Output Type Temperature Grade Surface Mount Terminal Pitch JESD-30 Code Operating Temperature (Max) Subcategory Qualification Status Output Voltage Output Current-Max Number of Outputs Input Voltage-Nom Analog IC - Other Type Current - Output Supply Current-Max (Isup) Output Configuration Control Mode Input Voltage (Min) Input Voltage (Max) Function Control Technique Switcher Configuration Switching Frequency-Max Topology Frequency - Switching Synchronous Rectifier Output Voltage-Min Voltage - Output (Min/Fixed) Voltage - Output (Max) Voltage - Input (Min)
LT3973IDD-5#TRPBF LT3973IDD-5#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Tape & Reel (TR) 2015 Active 1 (Unlimited) 10 EAR99 3mm ROHS3 Compliant 10-WFDFN Exposed Pad 3mm Surface Mount -40°C~125°C TJ BIPOLAR 0.8mm 42V e3 Matte Tin (Sn) DUAL LT3973 Fixed YES 0.5mm Switching Regulator or Controllers 5V 1 12V SWITCHING REGULATOR 750mA Positive CURRENT-MODE Step-Down PULSE WIDTH MODULATION Buck 195kHz~2.15MHz No 4.9V 5V 4.2V
LT1610CS8#TRPBF LT1610CS8#TRPBF Linear Technology/Analog Devices 1.4929
Add to Cart

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tape & Reel (TR) 1999 Active 1 (Unlimited) 8 EAR99 4.9mm ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) 3.9mm Surface Mount 0°C~70°C TA 8V e3 Matte Tin (Sn) DUAL GULL WING 260 30 LT1610 Adjustable YES R-PDSO-G8 1 1.5V SWITCHING REGULATOR 450mA Switch Positive CURRENT-MODE Step-Up, Step-Up/Step-Down PULSE WIDTH MODULATION Boost, SEPIC 1.7MHz No 1.23V 30V Switch 0.9V
LTC3251EMSE-1.2#TRPBF LTC3251EMSE-1.2#TRPBF Linear Technology/Analog Devices 2.1733
Add to Cart

Min: 1

Mult: 1

0.00000000 download 16 Weeks Tape & Reel (TR) Active 1 (Unlimited) 10 EAR99 3mm ROHS3 Compliant 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) Exposed Pad 3mm Surface Mount -40°C~85°C TA CMOS 5.5V e3 Matte Tin (Sn) DUAL GULL WING 260 30 LTC3251 Fixed YES 0.5mm Other Analog ICs 1.2V 1 3.6V SWITCHED CAPACITOR REGULATOR 500mA Positive Step-Down DOUBLER INVERTER Charge Pump 1MHz~1.6MHz No 1.2V 2.7V
LT1111CS8-5#PBF LT1111CS8-5#PBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tube 2003 Active 1 (Unlimited) 8 EAR99 4.9mm ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) 3.9mm Surface Mount 0°C~70°C TA BIPOLAR 30V e3 Matte Tin (Sn) DUAL GULL WING 260 30 LT1111 Fixed YES R-PDSO-G8 Switching Regulator or Controllers 5V 1 3V SWITCHING REGULATOR 1.5A Switch Positive or Negative VOLTAGE-MODE Step-Up, Step-Down PULSE FREQUENCY MODULATION SINGLE Buck, Boost 72kHz No 5V 2V
LT1506IR-3.3SYNC#TRPBF LT1506IR-3.3SYNC#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Tape & Reel (TR) Active 1 (Unlimited) 7 ROHS3 Compliant TO-263-8, D2Pak (7 Leads + Tab), TO-263CA 8.89mm Surface Mount -40°C~125°C TJ BIPOLAR 4.572mm 15V SINGLE GULL WING LT1506 Fixed YES R-PSSO-G7 Switching Regulator or Controllers 3.3V 1 5V SWITCHING REGULATOR 4.5A Positive CURRENT-MODE Step-Down PHASE-SHIFT CONTROL Buck 500kHz No 3.3V 4V
LT1054CJ8 LT1054CJ8 Linear Technology/Analog Devices 11.2348
Add to Cart

Min: 1

Mult: 1

0.00000000 Tube 2012 Obsolete 1 (Unlimited) 8 EAR99 Non-RoHS Compliant Contains Lead 8 8-CDIP (0.300, 7.62mm) 7.62mm Through Hole BIPOLAR 1 e0 Tin/Lead (Sn/Pb) DUAL NOT SPECIFIED NOT SPECIFIED LT1054 8 OTHER NO 2.54mm 100°C Switching Regulator or Controllers Not Qualified 2.5V 0.1A SWITCHED CAPACITOR REGULATOR 5mA VOLTAGE-MODE 3.5V 15V DOUBLER INVERTER 40kHz
LT1316CS8#TRPBF LT1316CS8#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tape & Reel (TR) 1998 Active 1 (Unlimited) 8 EAR99 4.9025mm ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) 3.899mm Surface Mount 0°C~70°C TA BIPOLAR 12V e3 Matte Tin (Sn) DUAL GULL WING 260 30 LT1316 Adjustable YES R-PDSO-G8 Switching Regulator or Controllers 1 2V SWITCHING REGULATOR 750mA Switch Positive or Negative CURRENT-MODE Step-Up, Step-Up/Step-Down CONSTANT OFF TIME Boost, Flyback No 1.23V 30V Switch 1.5V
LT8610ACHMSE#TRPBF LT8610ACHMSE#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Tape & Reel (TR) 2013 Active 1 (Unlimited) ROHS3 Compliant 16-TFSOP (0.118, 3.00mm Width) Exposed Pad Surface Mount -40°C~150°C TJ 42V LT8610 Adjustable 1 3.5A Positive Step-Down Buck 200kHz~2.2MHz Yes 0.8V 3V
LTC3633AIFE#TRPBF LTC3633AIFE#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 20 Weeks Tape & Reel (TR) 2013 Active 1 (Unlimited) 28 EAR99 9.7mm ROHS3 Compliant 28-TSSOP (0.173, 4.40mm Width) Exposed Pad 4.4mm Surface Mount -40°C~125°C TJ CMOS 20V e3 Matte Tin (Sn) DUAL GULL WING NOT SPECIFIED NOT SPECIFIED LTC3633 Adjustable YES 0.65mm Switching Regulator or Controllers Not Qualified 3.3V 2 12V DUAL SWITCHING CONTROLLER 3A Positive CURRENT-MODE Step-Down PHASE-SHIFT Buck 500kHz~4MHz Yes 0.6V 6V 3.6V
LTC3642IDD#PBF LTC3642IDD#PBF Linear Technology/Analog Devices 1.7261
Add to Cart

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tube 2010 Active 1 (Unlimited) 8 EAR99 3mm ROHS3 Compliant 8-WFDFN Exposed Pad 3mm Surface Mount -40°C~125°C TJ CMOS 0.8mm 45V e3 Matte Tin (Sn) DUAL NO LEAD 260 30 LTC3642 Adjustable YES 0.5mm S-PDSO-N8 Switching Regulator or Controllers Not Qualified 1 10V SWITCHING REGULATOR 50mA Positive CURRENT-MODE Step-Down Buck Yes 0.8V 4.5V
LT3640EFE#PBF LT3640EFE#PBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tube 2010 Active 1 (Unlimited) 28 EAR99 9.7mm ROHS3 Compliant PFM CONTROL TECHNIQUE ALSO POSSIBLE 28-TSSOP (0.173, 4.40mm Width) Exposed Pad 4.4mm Surface Mount -40°C~125°C TJ BIPOLAR 35V e3 Matte Tin (Sn) DUAL GULL WING 260 LT3640 Adjustable YES 0.65mm Switching Regulator or Controllers 2 12V DUAL SWITCHING CONTROLLER 1.1A 1.3A Positive CURRENT-MODE Step-Down PULSE WIDTH MODULATION PHASE-SHIFT Buck 500kHz~2MHz No 0.6V 1.265V 33.97V 2.5V
LT1374HVCS8#TRPBF LT1374HVCS8#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tape & Reel (TR) 2004 Active 1 (Unlimited) 8 EAR99 4.9025mm ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) 3.899mm Surface Mount 0°C~125°C TJ BIPOLAR 32V e3 Matte Tin (Sn) DUAL GULL WING 250 LT1374 Adjustable YES R-PDSO-G8 1 15V SWITCHING REGULATOR 4.5A Switch Positive CURRENT-MODE Step-Down PULSE WIDTH MODULATION Buck, SEPIC 500kHz No 2.42V 27.52V 5V
LTM4645IY LTM4645IY Linear Technology/Analog Devices 145.3083
Add to Cart

Min: 1

Mult: 1

0.00000000 download 12 Weeks PRODUCTION (Last Updated: 3 weeks ago) Tray Active 3 (168 Hours) 77 Non-RoHS Compliant 77 77-BBGA Module 9mm Surface Mount -40°C~125°C TJ 15V e0 Tin/Lead (Sn/Pb) BOTTOM BALL LTM4645 Adjustable YES 1 12V SWITCHING REGULATOR 25A Positive CURRENT-MODE Step-Down PHASE-SHIFT CONTROL Buck 600kHz No 0.6V 0.6V 1.8V 4.7V
LT1944-1EMS#TRPBF LT1944-1EMS#TRPBF Linear Technology/Analog Devices 1.7441
Add to Cart

Min: 1

Mult: 1

0.00000000 download 16 Weeks Tape & Reel (TR) 2001 Active 1 (Unlimited) 10 EAR99 3mm ROHS3 Compliant 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) 3mm Surface Mount 0°C~70°C TA BIPOLAR 1.1mm 15V e3 Matte Tin (Sn) DUAL GULL WING 250 LT1944 Adjustable YES 0.5mm S-PDSO-G10 Switching Regulator or Controllers 2 1.2V SWITCHING REGULATOR 60mA Switch 130mA Switch Positive VOLTAGE-MODE Step-Up CONSTANT OFF TIME Boost No 1.23V 34V 1.2V
LTC3610IWP#TRPBF LTC3610IWP#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks PRODUCTION (Last Updated: 2 weeks ago) Surface Mount Tape & Reel (TR) 2010 Active 1 (Unlimited) 64 EAR99 9mm ROHS3 Compliant 64 64-PowerVFQFN 9mm Surface Mount -40°C~125°C TJ CMOS e3 Matte Tin (Sn) QUAD LTC3610 Adjustable 0.5mm Switching Regulator or Controllers 24V 1 15V SWITCHING REGULATOR 12A Positive CURRENT-MODE Step-Down PULSE WIDTH MODULATION Buck No 0.6V 4V
LT1269CT#PBF LT1269CT#PBF Linear Technology/Analog Devices 39.7647
Add to Cart

Min: 1

Mult: 1

0.00000000 download 10 Weeks PRODUCTION (Last Updated: 1 month ago) Through Hole Tube 1998 Active 1 (Unlimited) 5 EAR99 ROHS3 Compliant Lead Free 5 TO-220-5 Formed Leads No SVHC 100kHz Through Hole 0°C~100°C TA BIPOLAR 30V e3 Matte Tin (Sn) - with Nickel (Ni) barrier SINGLE LT1269 Adjustable 60V 1 SWITCHING REGULATOR 4A Switch Positive or Negative CURRENT-MODE Step-Up, Step-Down, Step-Up/Step-Down Buck, Boost, Buck-Boost, Flyback No 1.244V 60V Switch 3.5V
LTC3119EFE#TRPBF LTC3119EFE#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks PRODUCTION (Last Updated: 2 weeks ago) Tape & Reel (TR) 2016 Active 1 (Unlimited) ROHS3 Compliant 28 28-TSSOP (0.173, 4.40mm Width) Exposed Pad Surface Mount -40°C~125°C TA 18V LTC3119 Adjustable 1 5A Positive Step-Up/Step-Down Buck-Boost 400kHz~2MHz Yes 0.8V 2.5V
LT3493EDCB-3#TRPBF LT3493EDCB-3#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tape & Reel (TR) 2006 Active 1 (Unlimited) 6 EAR99 3mm ROHS3 Compliant 6-WFDFN Exposed Pad 2mm Surface Mount -40°C~85°C TA 0.8mm 36V e3 Matte Tin (Sn) DUAL 260 30 LT3493 Adjustable YES 0.5mm R-PDSO-N6 1 12V SWITCHING REGULATOR 1.2A Positive CURRENT-MODE Step-Down PULSE WIDTH MODULATION Buck 750kHz No 0.78V 34.2V 6.8V
LTC3308AJV#TRMPBF LTC3308AJV#TRMPBF Linear Technology/Analog Devices 5.6080
Add to Cart

Min: 1

Mult: 1

0.00000000 12 Weeks Tape & Reel (TR) Active 1 (Unlimited) ROHS3 Compliant
LTC3124IFE#TRPBF LTC3124IFE#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Tape & Reel (TR) 2014 Active 1 (Unlimited) ROHS3 Compliant 16-TSSOP (0.173, 4.40mm Width) Exposed Pad Surface Mount -40°C~125°C TJ 5.5V LTC3124 Adjustable 1 2.5A Switch Positive Step-Up Boost 1MHz Yes 2.5V 15V 1.8V
LT1317BCS8#TRPBF LT1317BCS8#TRPBF Linear Technology/Analog Devices 1.6114
Add to Cart

Min: 1

Mult: 1

0.00000000 download 16 Weeks Tape & Reel (TR) 1998 Active 1 (Unlimited) 8 EAR99 4.9mm ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) 3.9mm Surface Mount 0°C~70°C TA BIPOLAR 12V e3 Matte Tin (Sn) DUAL GULL WING 260 30 LT1317 Adjustable YES R-PDSO-G8 Switching Regulator or Controllers 1.24V 1 2V SWITCHING REGULATOR 710mA Switch 6.5mA Positive CURRENT-MODE Step-Up, Step-Up/Step-Down PULSE WIDTH MODULATION Boost, SEPIC 620kHz No 1.24V 30V Switch 1.5V
LT1376IN8#PBF LT1376IN8#PBF Linear Technology/Analog Devices 7.8289
Add to Cart

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tube 2006 Active 1 (Unlimited) 8 EAR99 ROHS3 Compliant 8-DIP (0.300, 7.62mm) 7.62mm Through Hole -40°C~125°C TJ BIPOLAR 3.429mm 25V e3 Matte Tin (Sn) DUAL LT1376 Adjustable NO 2.54mm R-PDIP-T8 Switching Regulator or Controllers 2.42V 1 15V SWITCHING REGULATOR 1.5A Switch Positive CURRENT-MODE Step-Down PULSE WIDTH MODULATION Buck, SEPIC 500kHz No 2.42V 21.5V 5V
LTC3621HMS8E-23.3#TRPBF LTC3621HMS8E-23.3#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Tape & Reel (TR) Active 1 (Unlimited) EAR99 ROHS3 Compliant 8-VSSOP, 8-MSOP (0.118, 3.00mm Width) Surface Mount -40°C~150°C TJ 17V NOT SPECIFIED NOT SPECIFIED LTC3621 Fixed 1 SWITCHING REGULATOR 1A Positive Step-Down Buck 2.25MHz Yes 3.3V 2.7V
LTC1682IS8#PBF LTC1682IS8#PBF Linear Technology/Analog Devices 4.9742
Add to Cart

Min: 1

Mult: 1

0.00000000 download 16 Weeks Tube Active 1 (Unlimited) 8 EAR99 4.9mm ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) 3.9mm Surface Mount -40°C~85°C TA CMOS 4.4V e3 Matte Tin (Sn) DUAL GULL WING 260 30 LTC1682 Adjustable YES R-PDSO-G8 Other Analog ICs 5.5V 1 3V SWITCHED CAPACITOR REGULATOR 50mA Positive Step-Up/Step-Down DOUBLER INVERTER Charge Pump 550kHz No 2.5V 5.5V 1.8V
LTC3118EFE#TRPBF LTC3118EFE#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Tape & Reel (TR) 2015 Active 1 (Unlimited) ROHS3 Compliant 28-TSSOP (0.173, 4.40mm Width) Exposed Pad Surface Mount -40°C~125°C TJ 18V LTC3118 Adjustable 1 2A Positive Step-Up/Step-Down Buck-Boost 1.2MHz Yes 2V 2.2V
LTC3111IMSE#PBF LTC3111IMSE#PBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tube 2014 Active 1 (Unlimited) 16 EAR99 4.039mm ROHS3 Compliant 16-TFSOP (0.118, 3.00mm Width) Exposed Pad 3mm Surface Mount -40°C~125°C TJ CMOS 15V e3 Matte Tin (Sn) DUAL GULL WING NOT SPECIFIED NOT SPECIFIED LTC3111 Adjustable YES 0.5mm 1 5V SWITCHING REGULATOR 1.5A Positive VOLTAGE-MODE Step-Up/Step-Down PULSE WIDTH MODULATION Buck-Boost 800kHz Yes 2.5V
LT1109CZ-5#PBF LT1109CZ-5#PBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 12 Weeks Bulk 1996 Active 1 (Unlimited) 3 EAR99 ROHS3 Compliant TO-226-3, TO-92-3 (TO-226AA) Through Hole 0°C~70°C TA BIPOLAR 20V e3 Matte Tin (Sn) BOTTOM 260 40 LT1109 Fixed NO O-PBCY-T3 Switching Regulator or Controllers 5V 1 SWITCHING REGULATOR 1.2A Switch Positive VOLTAGE-MODE Step-Up PULSE FREQUENCY MODULATION Boost 120kHz No 5V 3V
LT1370HVCR#TRPBF LT1370HVCR#TRPBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tape & Reel (TR) 2004 Active 1 (Unlimited) 7 EAR99 ROHS3 Compliant TO-263-8, D2Pak (7 Leads + Tab), TO-263CA 8.89mm Surface Mount 0°C~70°C TA 4.877mm 30V e3 Matte Tin (Sn) - with Nickel (Ni) barrier SINGLE GULL WING 260 30 LT1370 Adjustable YES R-PSSO-G7 1 5V SWITCHING REGULATOR 6A Switch Positive or Negative CURRENT-MODE Step-Up, Step-Down, Step-Up/Step-Down Buck, Boost, Cuk, Flyback, Forward Converter, SEPIC 500kHz No 1.245V 42V Switch 2.7V
LT3641EUFD#PBF LT3641EUFD#PBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Tube 2011 Active 1 (Unlimited) 28 EAR99 5mm ROHS3 Compliant ALSO HAS CONTROL TECHNIQUE OF PFM 28-WFQFN Exposed Pad 4mm Surface Mount -40°C~125°C TJ BIPOLAR 0.8mm 42V e3 Matte Tin (Sn) QUAD NO LEAD NOT SPECIFIED NOT SPECIFIED LT3641 Adjustable YES 0.5mm Switching Regulator or Controllers Not Qualified 2 12V DUAL SWITCHING CONTROLLER 1.3A 1.1A Positive CURRENT-MODE Step-Down PULSE WIDTH MODULATION PHASE-SHIFT Buck 500kHz~2MHz Both 0.6V 1.265V 39.48V 2.5V
LT1374IS8#PBF LT1374IS8#PBF Linear Technology/Analog Devices 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tube 2004 Active 1 (Unlimited) 8 EAR99 4.9025mm ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) 3.899mm Surface Mount -40°C~125°C TJ BIPOLAR 25V e3 Matte Tin (Sn) DUAL GULL WING 260 30 LT1374 Adjustable YES R-PDSO-G8 Switching Regulator or Controllers 1 15V SWITCHING REGULATOR 4.5A Switch Positive CURRENT-MODE Step-Down PULSE WIDTH MODULATION Buck, SEPIC 500kHz No 2.42V 21.5V 5V
Settings Need Help?
Top FAQ's

How can I quickly find answers to my questions?

Please visit the Help & Support area of our website to find information regarding ordering, shipping, delivery and more.

What is my Order Status?

Registered users can track orders from their account dropdown, or click here. *Order Status may take 12 hours to update after initial order is placed.

How do I return product?

Users can begin the returns process by starting with our Returns Page.

How do I find price and availability?

Quotes can be created by registered users in myLists.

How do I create a 'HK JDW' Account?

Visit the Registration Page and enter the required information. You will receive an email confirmation when your registration is complete.

United Kingdom/GBP Summary
Fast Shipping Fast Delivery

Orders are typically delivered to United Kingdom within 48 hours depending on location.

Free Shipping Free Shipping

Free delivery to United Kingdom on orders of £33 or more. A delivery charge of £12 will be billed on all orders less than £33.

Incoterms Incoterms

DDP (Duty and customs paid by HK JDW)

Payment Options Payment Types

Credit account for qualified institutions and businesses

Payment in Advance by Wire Transfer

Visa Mastercard American Express PayPal Apple Pay Google Pay

Marketplace Marketplace Product

More Products From Fully Authorized Partners

Average Time to Ship 1-3 Days, extra ship charges may apply. Please see product page, cart, and checkout for actual ship speed.

Incoterms: CPT (Duty, customs, and applicable VAT/Tax due at time of delivery)

For more information visit Help & Support