TC1262-2.5VDB Equivalent & Substitute Parts

Part Overview

The TC1262-2.5VDB is a linear voltage regulator IC from Microchip Technology, classified as a Power Management (PMIC) component. It delivers a fixed 2.5V output at 500mA with a maximum dropout voltage of 0.65V, housed in a SOT-223-3 surface mount package. The device is currently in active production status. Finding equivalent and substitute parts may be necessary due to inventory constraints, packaging format requirements, or specific compliance certifications needed for your application.

Substiute Parts

TC1262-2.5VDB

Microchip TechnologyIn Stock: 4094TC1262-2.5VDB Datasheet

Current PartRFQ

TC1262-2.5VDBTR

Microchip TechnologyIn Stock: 37382TC1262-2.5VDBTR Datasheet

DirectRFQ

LM2937IMP-2.5/NOPB

Texas InstrumentsIn Stock: 1372LM2937IMP-2.5/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC1262-2.5VDB is determined by the following critical parameters:

• Fixed output voltage of 2.5V
• Output current capability of 500mA
• Maximum input voltage rating of 6V or higher
• Surface mount packaging compatible with SOT-223 footprint
• Operating temperature range of -40°C to 125°C or wider
• Protection against over-current and over-temperature conditions

The identified substitute parts maintain these core electrical specifications while differing in packaging format, RoHS compliance status, or manufacturer identity.

Parameter Comparison

Engineering Selection Recommendations

TC1262-2.5VDBTR is a direct equivalent from Microchip Technology, differing only in packaging format (Cut Tape & Digi-Reel versus Tube) and RoHS compliance certification (ROHS3 Compliant). This part is suitable for applications requiring RoHS3 compliance and tape-and-reel packaging for automated assembly.

LM2937IMP-2.5/NOPB from Texas Instruments is a manufacturer-recommended substitute. It maintains the 2.5V output and 500mA current rating but introduces the following differences: higher maximum input voltage (26V versus 6V), higher dropout voltage (1V versus 0.65V), significantly higher quiescent current (10mA versus 130µA), narrower operating temperature range (-40°C to 85°C versus -40°C to 125°C), and SOT-223-4 package variant. This part is suitable for applications with higher input voltage requirements and RoHS3 compliance needs, provided the operating temperature range and quiescent current characteristics are acceptable.

Frequently Asked Questions (FAQ)

Q: Can TC1262-2.5VDBTR replace TC1262-2.5VDB directly?

A: Yes. Both parts are from Microchip Technology with identical electrical specifications. The difference is packaging format (tape-and-reel versus tube) and RoHS compliance status. Verify your assembly process requirements and compliance certifications before substitution.

Q: Is LM2937IMP-2.5/NOPB a pin-for-pin replacement?

A: No. LM2937IMP-2.5/NOPB uses SOT-223-4 packaging while TC1262-2.5VDB uses SOT-223-3. The pinout differs. Verify PCB layout compatibility before substitution.

Q: What are the key differences between TC1262-2.5VDB and LM2937IMP-2.5/NOPB?

A: The LM2937IMP-2.5/NOPB has a higher maximum input voltage (26V), higher dropout voltage (1V), higher quiescent current (10mA), and a narrower operating temperature range (-40°C to 85°C). These differences may impact circuit performance and thermal management.

Q: Which substitute should I use if RoHS3 compliance is required?

A: Both TC1262-2.5VDBTR and LM2937IMP-2.5/NOPB are ROHS3 Compliant. Choose based on your packaging requirements and input voltage specifications.

Q: Does the higher quiescent current of LM2937IMP-2.5/NOPB affect my design?

A: The LM2937IMP-2.5/NOPB draws 10mA quiescent current compared to 130µA for the TC1262-2.5VDB. This 77x increase may impact battery-powered or low-power applications. Evaluate your power budget accordingly.