LP5900SD-2.5 Equivalent & Substitute Parts

Part Overview

The LP5900SD-2.5 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 150mA output current at a fixed 2.5V output with a maximum dropout voltage of 0.15V at rated load. The part is classified as Last Time Buy, indicating end-of-life status. Identifying parametric equivalents and active substitutes is essential for design continuity and supply chain management.

Substiute Parts

LP5900SD-2.5

Texas InstrumentsIn Stock: 1736LP5900SD-2.5 Datasheet

Current PartRFQ

LP5900SD-2.5/NOPB

Texas InstrumentsIn Stock: 17167LP5900SD-2.5/NOPB Datasheet

Parametric EquivalentRFQ

LP5900SDX-2.5/NOPB

Texas InstrumentsIn Stock: 2412LP5900SDX-2.5/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP5900SD-2.5 are identified based on strict parametric equivalence across the following criteria:

• Output voltage configuration: Positive fixed 2.5V
• Output current capability: 150mA
• Maximum input voltage: 5.5V
• Dropout voltage performance: 0.15V @ 150mA
• Package type: 6-WSON (2.2x2.5)
• Operating temperature range: -40°C to 85°C
• Protection and control features: Over Temperature, Short Circuit, Enable function
• Compliance standards: ROHS3, EAR99, HTSUS 8542.39.0001

All identified substitutes maintain identical electrical specifications and mechanical compatibility with the original part number.

Parameter Comparison

Engineering Selection Recommendations

The LP5900SD-2.5 is designated Last Time Buy status. For new designs and ongoing production requirements, LP5900SD-2.5/NOPB and LP5900SDX-2.5/NOPB are recommended as direct substitutes. Both alternatives are in Active product status and maintain full parametric equivalence with the original part.

LP5900SD-2.5/NOPB carries REACH Unaffected compliance status, while LP5900SDX-2.5/NOPB also carries REACH Unaffected status. Both parts are ROHS3 compliant and carry identical EAR99 export classification and HTSUS commodity code 8542.39.0001.

Selection between the two active substitutes may be based on inventory availability and supply chain logistics. LP5900SD-2.5/NOPB maintains higher inventory levels (17064 pcs), while LP5900SDX-2.5/NOPB provides an alternative source (2400 pcs).

Frequently Asked Questions (FAQ)

Q: Can LP5900SD-2.5/NOPB be used as a direct replacement for LP5900SD-2.5?

A: Yes. Both parts are parametrically identical across all electrical specifications, output voltage, current rating, dropout voltage, and package configuration. The primary difference is product status: LP5900SD-2.5/NOPB is Active, while the original is Last Time Buy.

Q: What is the difference between LP5900SD-2.5/NOPB and LP5900SDX-2.5/NOPB?

A: Both parts are parametrically equivalent with identical electrical performance and package specifications. The suffix variation (SD vs. SDX) reflects manufacturing or qualification differences but does not affect functional compatibility. Selection should be based on availability and supply chain requirements.

Q: Are these parts pin-compatible?

A: Yes. All three part numbers use the 6-WSON (2.2x2.5) package with identical pinout and mechanical dimensions, enabling direct PCB-level substitution without layout modifications.

Q: What compliance certifications apply to the substitute parts?

A: Both LP5900SD-2.5/NOPB and LP5900SDX-2.5/NOPB are ROHS3 compliant, REACH Unaffected, and carry EAR99 export classification. Moisture Sensitivity Level is 1 (Unlimited) for all variants.

Q: Can these regulators be used in applications requiring extended temperature ranges beyond -40°C to 85°C?

A: No. All variants are specified for -40°C to 85°C operating temperature. Applications requiring extended temperature performance require alternative device selection.