LP3856ET-5.0 Equivalent & Substitute Parts

Part Overview

The LP3856ET-5.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output at 3A in a TO-220-5 package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The LP3856ET-5.0/NOPB and LP3853ET-5.0/NOPB serve as direct and parametric equivalents with active product status and improved compliance certifications.

Substiute Parts

LP3856ET-5.0

Texas InstrumentsIn Stock: 1511LP3856ET-5.0 Datasheet

Current PartRFQ

LP3856ET-5.0/NOPB

Texas InstrumentsIn Stock: 1105LP3856ET-5.0/NOPB Datasheet

DirectRFQ

LP3853ET-5.0/NOPB

Texas InstrumentsIn Stock: 810LP3853ET-5.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP3856ET-5.0 is determined by strict equivalence across the following parameters: output voltage (5V fixed), output current (3A), input voltage maximum (7V), voltage dropout (0.6V @ 3A), quiescent current (4 mA), package type (TO-220-5 Formed Leads), operating temperature range (-40°C ~ 125°C), and protection features (Over Current, Over Temperature, Short Circuit).

The LP3856ET-5.0/NOPB qualifies as a direct manufacturer substitute with identical electrical specifications and the same base product number (LP3856). The primary distinction is product status (Active vs. Obsolete) and packaging format (Tube vs. unspecified).

The LP3853ET-5.0/NOPB qualifies as a parametric equivalent, sharing all critical electrical parameters and physical package specifications. The base product number differs (LP3853 vs. LP3856), but functional performance remains equivalent within the defined parameter set.

Parameter Comparison

Engineering Selection Recommendations

For new designs and procurement, the LP3856ET-5.0/NOPB is the primary substitute, offering identical electrical performance with Active product status and ROHS3 compliance. This part maintains the same base product number and provides superior regulatory compliance compared to the obsolete LP3856ET-5.0.

The LP3853ET-5.0/NOPB serves as a secondary parametric equivalent when LP3856ET-5.0/NOPB availability is constrained. Both substitute parts meet all electrical and mechanical requirements of the original specification and carry ROHS3 compliance certification.

Frequently Asked Questions (FAQ)

Q: Can LP3856ET-5.0/NOPB be used as a direct replacement for LP3856ET-5.0?

A: Yes. Both parts share identical electrical specifications, output voltage (5V), output current (3A), voltage dropout (0.6V @ 3A), and TO-220-5 package configuration. The primary difference is product status and packaging format.

Q: What is the difference between LP3856ET-5.0/NOPB and LP3853ET-5.0/NOPB?

A: Both parts are parametric equivalents with identical electrical performance across all critical parameters: 5V output, 3A current, 0.6V dropout, and TO-220-5 package. The base product number differs (LP3856 vs. LP3853), but functional compatibility is maintained.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both LP3856ET-5.0/NOPB and LP3853ET-5.0/NOPB carry ROHS3 compliance certification, whereas the original LP3856ET-5.0 is RoHS non-compliant.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided the design accommodates the TO-220-5 Formed Leads package and operates within the specified temperature range (-40°C ~ 125°C) and input voltage maximum (7V).

Q: What inventory levels are available?

A: LP3856ET-5.0/NOPB: 1083 Pcs; LP3853ET-5.0/NOPB: 748 Pcs.