TPPM0303DG4 Equivalent & Substitute Parts

Part Overview

The TPPM0303DG4 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.3V output applications with 250mA current capacity in an 8-SOIC surface mount package. This part is discontinued at DiGi Electronics, making identification of equivalent substitute components essential for ongoing production and maintenance applications. The TPPM0303DG4 provides over-temperature and reverse polarity protection suitable for embedded systems and low-power digital circuits requiring stable 3.3V regulation from input sources up to 5.5V.

Substiute Parts

TPPM0303DG4

Texas InstrumentsIn Stock: 875TPPM0303DG4 Datasheet

Current PartRFQ

TPPM0303D

Texas InstrumentsIn Stock: 1182TPPM0303D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TPPM0303DG4 is determined by strict equivalence across the following electrical and mechanical parameters:

• Output voltage specification: 3.3V fixed
• Output current rating: 250mA minimum
• Maximum input voltage: 5.5V or greater
• Package type: 8-SOIC form factor
• Dropout voltage: 1V @ 400mA or lower
• Protection features: Over-temperature and reverse polarity protection
• Operating temperature range: 0°C to 70°C minimum coverage
• Surface mount mounting type
• RoHS3 compliance

The TPPM0303D meets all substitution criteria as a direct equivalent part from the same manufacturer with identical electrical specifications and package configuration.

Parameter Comparison

Engineering Selection Recommendations

The TPPM0303D is the direct substitute for the TPPM0303DG4. Both parts share identical electrical specifications, package configuration, and protection characteristics. The primary distinction is product status: the TPPM0303DG4 is discontinued while the TPPM0303D remains in active production with higher inventory availability (1141 pcs vs. 835 pcs). Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and legacy system maintenance. Selection of the TPPM0303D eliminates obsolescence risk while maintaining full electrical and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TPPM0303D directly replace the TPPM0303DG4 without circuit modifications?

A: Yes. The TPPM0303D is electrically and mechanically identical to the TPPM0303DG4. No circuit modifications are required. Both parts feature the same 8-SOIC package footprint, output voltage, current rating, and protection features.

Q: What is the difference between TPPM0303DG4 and TPPM0303D?

A: The parts are functionally equivalent. The primary difference is product lifecycle status: TPPM0303DG4 is discontinued while TPPM0303D is actively manufactured. The suffix variation reflects Texas Instruments' internal part designation but does not indicate functional differences.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain identical RoHS3 compliance, REACH unaffected status, and moisture sensitivity level (MSL 1). Regulatory and environmental certifications are equivalent.

Q: What is the 8-SOIC package dimension?

A: The 8-SOIC package measures 0.154 inches (3.90mm) in width. This is the standard surface mount package for both the TPPM0303DG4 and TPPM0303D.

Q: Can this regulator operate above 70°C?

A: The specified operating temperature range is 0°C to 70°C. Operation outside this range is not characterized by the manufacturer and should not be assumed.

Q: What protection does this regulator provide?

A: The TPPM0303DG4 and TPPM0303D include over-temperature protection and reverse polarity protection to prevent damage from thermal stress and incorrect power supply connection.