LM1086CT-5.0/NOPB Equivalent & Substitute Parts

Part Overview

The LM1086CT-5.0/NOPB is a linear voltage regulator IC manufactured by Texas Instruments, delivering a fixed 5V output at 1.5A in a TO-220-3 package. This device is classified as active product status and is ROHS3 compliant. Substitute parts are necessary when the original part is unavailable, when higher current capacity is required for system upgrades, or when alternative manufacturer sourcing is preferred for supply chain optimization.

Substiute Parts

LM1086CT-5.0/NOPB

Texas InstrumentsIn Stock: 12430LM1086CT-5.0/NOPB Datasheet

Current PartRFQ

LD1085V50

STMicroelectronicsIn Stock: 5096LD1085V50 Datasheet

MFR RecommendedRFQ

LT1084CT-5#PBF

Analog Devices Inc.In Stock: 4056LT1084CT-5#PBF Datasheet

MFR RecommendedRFQ

LT1085CT-5#PBF

Analog Devices Inc.In Stock: 1237LT1085CT-5#PBF Datasheet

MFR RecommendedRFQ

LT1085IT-5#PBF

Analog Devices Inc.In Stock: 2051LT1085IT-5#PBF Datasheet

MFR RecommendedRFQ

LT1086CT-5#PBF

Analog Devices Inc.In Stock: 1999LT1086CT-5#PBF Datasheet

MFR RecommendedRFQ

LT1086IT-5#PBF

Analog Devices Inc.In Stock: 1374LT1086IT-5#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM1086CT-5.0/NOPB is determined by the following criteria:

Primary Substitution Criteria:

• Fixed output voltage of 5V
• TO-220-3 package configuration
• Through-hole mounting type
• Active product status
• ROHS3 compliance

Secondary Compatibility Factors:

• Output current capacity equal to or greater than 1.5A
• Maximum input voltage of 20V or higher
• Voltage dropout specification of 1.5V or less at rated current
• Operating temperature range that encompasses 0°C ~ 125°C or extends beyond it

Substitute parts are grouped into two categories: direct equivalents (matching 1.5A output current) and higher-capacity alternatives (3A and 5A output current). Higher-capacity parts are suitable substitutes when system design permits increased current handling without circuit modification.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (1.5A Output Current):

LT1086CT-5#PBF and LT1086IT-5#PBF are direct functional equivalents to the LM1086CT-5.0/NOPB. Both are manufactured by Analog Devices Inc. and maintain identical output current, voltage dropout, and package specifications. The LT1086IT-5#PBF extends the operating temperature range to -40°C ~ 125°C, providing enhanced low-temperature performance. Both parts are ROHS3 compliant and active product status.

Higher-Capacity Alternatives (3A Output Current):

LT1085CT-5#PBF, LT1085IT-5#PBF, and LD1085V50 provide 3A output current capacity. These parts are suitable for applications requiring increased current delivery while maintaining the same 5V output and TO-220-3 package. The LT1085IT-5#PBF and LD1085V50 offer extended operating temperature ranges (-40°C ~ 125°C). LD1085V50 from STMicroelectronics provides the highest maximum input voltage at 30V. All three parts are ROHS3 compliant and active product status.

Maximum-Capacity Alternative (5A Output Current):

LT1084CT-5#PBF delivers 5A output current, the highest capacity among all substitutes. This part is suitable for applications with significantly higher current demands. It maintains the 5V output, TO-220-3 package, and ROHS3 compliance. Operating temperature range is 0°C ~ 125°C. Maximum input voltage is 20V.

Compliance and Availability:

All substitute parts maintain ROHS3 compliance and active product status, ensuring regulatory alignment and long-term availability. Selection should prioritize parts with inventory levels sufficient for production requirements and lead time considerations.

Frequently Asked Questions (FAQ)

Q: Can LT1086CT-5#PBF directly replace LM1086CT-5.0/NOPB without circuit modification?

A: Yes. LT1086CT-5#PBF is a direct equivalent with matching output current (1.5A), voltage dropout (1.5V @ 1.5A), and TO-220-3 package. No circuit modification is required. Both parts are ROHS3 compliant and active product status.

Q: What is the advantage of using LT1085 or LT1084 series parts instead of LT1086?

A: LT1085 and LT1084 series parts provide higher output current capacity (3A and 5A respectively) while maintaining the same 5V output voltage and TO-220-3 package. These are suitable for applications requiring increased current delivery. Voltage dropout remains at 1.5V across all current ratings.

Q: Is LD1085V50 from STMicroelectronics compatible with the LM1086CT-5.0/NOPB?

A: LD1085V50 is compatible from an electrical and mechanical standpoint. It provides 3A output current, 5V fixed output, and TO-220-3 package configuration. The maximum input voltage is 30V, exceeding the LM1086CT-5.0/NOPB specification of 25V. ROHS3 compliance and active product status are maintained.

Q: What is the difference between LT1085CT-5#PBF and LT1085IT-5#PBF?

A: Both parts are identical in electrical specifications and output current (3A). The primary difference is operating temperature range: LT1085CT-5#PBF operates from 0°C ~ 125°C, while LT1085IT-5#PBF operates from -40°C ~ 125°C. Select LT1085IT-5#PBF for applications requiring extended low-temperature performance.

Q: Are all substitute parts available in the same TO-220-3 package?

A: Yes. All substitute parts listed are packaged in TO-220-3 configuration, ensuring mechanical and thermal compatibility with the original LM1086CT-5.0/NOPB design without PCB layout modification.

Q: What protection features does each substitute part provide?

A: LT1086CT-5#PBF, LT1086IT-5#PBF, and LD1085V50 provide Over Current and Over Temperature protection. LT1085CT-5#PBF, LT1085IT-5#PBF, and LT1084CT-5#PBF provide Over Temperature protection only. The original LM1086CT-5.0/NOPB includes Over Current, Over Temperature, and Short Circuit protection.

Q: Can I use a higher-current part (3A or 5A) in a circuit designed for 1.5A?

A: Yes. Higher-current parts are backward compatible in circuits designed for lower current. The regulator will deliver only the current demanded by the load. No circuit modification is required. This approach provides design margin for future current requirement increases.