WELWYN/TT ELECTRONICS LM117-220M Linear Voltage Regulator
The LM117-220M is a positive adjustable voltage regulator designed for high-performance applications requiring precise voltage regulation. Manufactured by WELWYN/TT ELECTRONICS, this device offers reliable operation with a wide output voltage range and robust protection features.
Product Features
Hermetic TO220 metal or ceramic surface mount packages
Output voltage range of 1.25V to 37V (up to 57V for -HV version)
Output current exceeding 1.5A
0.1% line and load regulation for stable voltage output
Floating operation suitable for high-voltage applications
Complete series of protections including current limiting, thermal shutdown, and SOA control
Isolated leads from case in metal packages
Optional 1% voltage tolerance
Electrical Characteristics
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Line Regulation (D O)
V – V = 3 to 40V, I O
0.02
0.05
% / V
Load Regulation (D O)
V 5V O, I O = 10mA to 1.5A
5mV
15mV
mV
Reference Voltage (V REF)
V – V = 3 to 40V, I O = 10mA to 1.5A
1.2V
1.25V
1.3V
V
Output Noise (e N)
25°C, 10Hz to 10kHz
0.003
% of V
Absolute Maximum Ratings
Parameter
Value
Input-Output Differential Voltage
40V (Standard), 60V (HV Series)
Output Current
Internally limited
Power Dissipation (P D)
Internally limited
Operating Junction Temperature Range (T j)
–55°C to 150°C
Storage Temperature (T stg)
–65°C to 150°C
Thermal Data
Parameter
Max.
Thermal Resistance Junction–Case (R θ j–case)
3°C/W
Thermal Resistance Junction–Ambient (R θ j–amb)
50°C/W
Package Options
TO220 Metal Package (Hermetic, Isolated Leads)
Ceramic Surface Mount Package
Additional Information
Part Number: LM117-220M
Manufacturer: WELWYN/TT ELECTRONICS
Country of Origin: CN
Unit of Measure: EA
ECCN: EAR99
Datasheet: Download Datasheet
For more detailed specifications and application guidance, please refer to the datasheet linked above. The datasheet was not processed; please search the internet for the part number for more details.
Note: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.
{"id":10004600422717,"title":"LM117-220M","handle":"lm117-220m","description":"\u003ch3\u003eWELWYN\/TT ELECTRONICS LM117-220M Linear Voltage Regulator\u003c\/h3\u003e\n\n\u003cp\u003eThe LM117-220M is a positive adjustable voltage regulator designed for high-performance applications requiring precise voltage regulation. Manufactured by WELWYN\/TT ELECTRONICS, this device offers reliable operation with a wide output voltage range and robust protection features.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eHermetic TO220 metal or ceramic surface mount packages\u003c\/li\u003e\n \u003cli\u003eOutput voltage range of 1.25V to 37V (up to 57V for -HV version)\u003c\/li\u003e\n \u003cli\u003eOutput current exceeding 1.5A\u003c\/li\u003e\n \u003cli\u003e0.1% line and load regulation for stable voltage output\u003c\/li\u003e\n \u003cli\u003eFloating operation suitable for high-voltage applications\u003c\/li\u003e\n \u003cli\u003eComplete series of protections including current limiting, thermal shutdown, and SOA control\u003c\/li\u003e\n \u003cli\u003eIsolated leads from case in metal packages\u003c\/li\u003e\n \u003cli\u003eOptional 1% voltage tolerance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eTest Conditions\u003c\/th\u003e\n \u003cth\u003eMin.\u003c\/th\u003e\n \u003cth\u003eTyp.\u003c\/th\u003e\n \u003cth\u003eMax.\u003c\/th\u003e\n \u003cth\u003eUnit\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLine Regulation (D O)\u003c\/td\u003e\n \u003ctd\u003eV – V = 3 to 40V, I O\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e0.02\u003c\/td\u003e\n \u003ctd\u003e0.05\u003c\/td\u003e\n \u003ctd\u003e% \/ V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLoad Regulation (D O)\u003c\/td\u003e\n \u003ctd\u003eV 5V O, I O = 10mA to 1.5A\u003c\/td\u003e\n \u003ctd\u003e5mV\u003c\/td\u003e\n \u003ctd\u003e15mV\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003emV\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eReference Voltage (V REF)\u003c\/td\u003e\n \u003ctd\u003eV – V = 3 to 40V, I O = 10mA to 1.5A\u003c\/td\u003e\n \u003ctd\u003e1.2V\u003c\/td\u003e\n \u003ctd\u003e1.25V\u003c\/td\u003e\n \u003ctd\u003e1.3V\u003c\/td\u003e\n \u003ctd\u003eV\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOutput Noise (e N)\u003c\/td\u003e\n \u003ctd\u003e25°C, 10Hz to 10kHz\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e0.003\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e% of V\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAbsolute Maximum Ratings\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eValue\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInput-Output Differential Voltage\u003c\/td\u003e\n \u003ctd\u003e40V (Standard), 60V (HV Series)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOutput Current\u003c\/td\u003e\n \u003ctd\u003eInternally limited\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePower Dissipation (P D)\u003c\/td\u003e\n \u003ctd\u003eInternally limited\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Junction Temperature Range (T j)\u003c\/td\u003e\n \u003ctd\u003e–55°C to 150°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStorage Temperature (T stg)\u003c\/td\u003e\n \u003ctd\u003e–65°C to 150°C\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eThermal Data\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eMax.\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eThermal Resistance Junction–Case (R θ j–case)\u003c\/td\u003e\n \u003ctd\u003e3°C\/W\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eThermal Resistance Junction–Ambient (R θ j–amb)\u003c\/td\u003e\n \u003ctd\u003e50°C\/W\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Options\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eTO220 Metal Package (Hermetic, Isolated Leads)\u003c\/li\u003e\n \u003cli\u003eCeramic Surface Mount Package\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003ePart Number: LM117-220M\u003cbr\u003e\nManufacturer: WELWYN\/TT ELECTRONICS\u003cbr\u003e\nCountry of Origin: CN\u003cbr\u003e\nUnit of Measure: EA\u003cbr\u003e\nECCN: EAR99\u003cbr\u003e\nDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-WEW\/LM117-220M.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eFor more detailed specifications and application guidance, please refer to the datasheet linked above. The datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.\u003c\/strong\u003e\u003c\/p\u003e","published_at":"2025-08-06T04:48:30+05:30","created_at":"2025-08-06T04:48:30+05:30","vendor":"Waldom Electonics","type":"","tags":["IC","STD_IMG","WELWY-TTEL","WLDM"],"price":725940,"price_min":725940,"price_max":725940,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50554250494269,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"LM117-220M","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"LM117-220M","public_title":null,"options":["Default Title"],"price":725940,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"LM117-220M","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_29e486b8-b01f-4170-b3c3-1d255221d1a1.jpg?v=1754435911"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_29e486b8-b01f-4170-b3c3-1d255221d1a1.jpg?v=1754435911","options":["Title"],"media":[{"alt":null,"id":45691032600893,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_29e486b8-b01f-4170-b3c3-1d255221d1a1.jpg?v=1754435911"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_29e486b8-b01f-4170-b3c3-1d255221d1a1.jpg?v=1754435911","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eWELWYN\/TT ELECTRONICS LM117-220M Linear Voltage Regulator\u003c\/h3\u003e\n\n\u003cp\u003eThe LM117-220M is a positive adjustable voltage regulator designed for high-performance applications requiring precise voltage regulation. Manufactured by WELWYN\/TT ELECTRONICS, this device offers reliable operation with a wide output voltage range and robust protection features.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eHermetic TO220 metal or ceramic surface mount packages\u003c\/li\u003e\n \u003cli\u003eOutput voltage range of 1.25V to 37V (up to 57V for -HV version)\u003c\/li\u003e\n \u003cli\u003eOutput current exceeding 1.5A\u003c\/li\u003e\n \u003cli\u003e0.1% line and load regulation for stable voltage output\u003c\/li\u003e\n \u003cli\u003eFloating operation suitable for high-voltage applications\u003c\/li\u003e\n \u003cli\u003eComplete series of protections including current limiting, thermal shutdown, and SOA control\u003c\/li\u003e\n \u003cli\u003eIsolated leads from case in metal packages\u003c\/li\u003e\n \u003cli\u003eOptional 1% voltage tolerance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eTest Conditions\u003c\/th\u003e\n \u003cth\u003eMin.\u003c\/th\u003e\n \u003cth\u003eTyp.\u003c\/th\u003e\n \u003cth\u003eMax.\u003c\/th\u003e\n \u003cth\u003eUnit\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLine Regulation (D O)\u003c\/td\u003e\n \u003ctd\u003eV – V = 3 to 40V, I O\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e0.02\u003c\/td\u003e\n \u003ctd\u003e0.05\u003c\/td\u003e\n \u003ctd\u003e% \/ V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLoad Regulation (D O)\u003c\/td\u003e\n \u003ctd\u003eV 5V O, I O = 10mA to 1.5A\u003c\/td\u003e\n \u003ctd\u003e5mV\u003c\/td\u003e\n \u003ctd\u003e15mV\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003emV\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eReference Voltage (V REF)\u003c\/td\u003e\n \u003ctd\u003eV – V = 3 to 40V, I O = 10mA to 1.5A\u003c\/td\u003e\n \u003ctd\u003e1.2V\u003c\/td\u003e\n \u003ctd\u003e1.25V\u003c\/td\u003e\n \u003ctd\u003e1.3V\u003c\/td\u003e\n \u003ctd\u003eV\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOutput Noise (e N)\u003c\/td\u003e\n \u003ctd\u003e25°C, 10Hz to 10kHz\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e0.003\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e% of V\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAbsolute Maximum Ratings\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eValue\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInput-Output Differential Voltage\u003c\/td\u003e\n \u003ctd\u003e40V (Standard), 60V (HV Series)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOutput Current\u003c\/td\u003e\n \u003ctd\u003eInternally limited\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePower Dissipation (P D)\u003c\/td\u003e\n \u003ctd\u003eInternally limited\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Junction Temperature Range (T j)\u003c\/td\u003e\n \u003ctd\u003e–55°C to 150°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStorage Temperature (T stg)\u003c\/td\u003e\n \u003ctd\u003e–65°C to 150°C\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eThermal Data\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eMax.\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eThermal Resistance Junction–Case (R θ j–case)\u003c\/td\u003e\n \u003ctd\u003e3°C\/W\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eThermal Resistance Junction–Ambient (R θ j–amb)\u003c\/td\u003e\n \u003ctd\u003e50°C\/W\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Options\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eTO220 Metal Package (Hermetic, Isolated Leads)\u003c\/li\u003e\n \u003cli\u003eCeramic Surface Mount Package\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003ePart Number: LM117-220M\u003cbr\u003e\nManufacturer: WELWYN\/TT ELECTRONICS\u003cbr\u003e\nCountry of Origin: CN\u003cbr\u003e\nUnit of Measure: EA\u003cbr\u003e\nECCN: EAR99\u003cbr\u003e\nDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-WEW\/LM117-220M.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eFor more detailed specifications and application guidance, please refer to the datasheet linked above. The datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.\u003c\/strong\u003e\u003c\/p\u003e"}
