LP38692SD-3.3 Linear Voltage Regulator IC Equivalent & Substitute Parts

Part Overview

The LP38692SD-3.3 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.3V output applications with 1A current capacity in a 6-WSON (3x3) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The LP38692SD-3.3 delivers regulated 3.3V output with integrated over-temperature protection, suitable for low-power embedded systems and portable applications requiring stable voltage regulation.

Substiute Parts

LP38692SD-3.3

Texas InstrumentsIn Stock: 25208LP38692SD-3.3 Datasheet

Current PartRFQ

LP38692SD-3.3/NOPB

Texas InstrumentsIn Stock: 26247LP38692SD-3.3/NOPB Datasheet

DirectRFQ

LP38690SD-3.3/NOPB

Texas InstrumentsIn Stock: 63282LP38690SD-3.3/NOPB Datasheet

Parametric EquivalentRFQ

LP38690SDX-3.3/NOPB

Texas InstrumentsIn Stock: 63348LP38690SDX-3.3/NOPB Datasheet

Parametric EquivalentRFQ

LP38692SDX-3.3/NOPB

Texas InstrumentsIn Stock: 1050LP38692SDX-3.3/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP38692SD-3.3 are classified based on electrical parameter equivalence and product status compliance. All listed substitutes maintain identical electrical specifications: 3.3V fixed output, 1A output current, 10V maximum input voltage, 1V maximum dropout voltage at 1A, 55 µA quiescent current, and 55dB PSRR at 120Hz. All substitutes feature the same 6-WSON (3x3) package with exposed pad and operate across the -40°C to 125°C temperature range with over-temperature protection.

The primary distinction among substitutes is product status and packaging configuration. The LP38692SD-3.3/NOPB is a direct equivalent with active product status and RoHS3 compliance. The LP38690SD-3.3/NOPB and LP38690SDX-3.3/NOPB are parametric equivalents from the LP38690 base product line, also with active status and RoHS3 compliance. The LP38692SDX-3.3/NOPB is a parametric equivalent variant with active status, RoHS3 compliance, and Tape & Reel packaging.

Parameter Comparison

Engineering Selection Recommendations

For new designs and procurement, LP38692SD-3.3/NOPB is the primary direct substitute, offering identical electrical performance with active product status and RoHS3 compliance. This part provides the most direct replacement path with equivalent packaging and specifications.

LP38690SD-3.3/NOPB and LP38690SDX-3.3/NOPB are parametric equivalents from the LP38690 product line with active status and RoHS3 compliance. These parts maintain all critical electrical parameters and package specifications. LP38690SD-3.3/NOPB is available in Cut Tape and Digi-Reel packaging, while LP38690SDX-3.3/NOPB is available in Cut Tape and Digi-Reel packaging as well.

LP38692SDX-3.3/NOPB is a parametric equivalent variant with active status and RoHS3 compliance, supplied in Tape & Reel packaging. This option is suitable for high-volume automated assembly processes.

All substitute parts are RoHS3 compliant, addressing environmental and regulatory requirements that the obsolete LP38692SD-3.3 does not meet. Selection among active substitutes should prioritize packaging configuration matching your assembly process and inventory availability requirements.

Frequently Asked Questions (FAQ)

Q: Can LP38692SD-3.3/NOPB directly replace LP38692SD-3.3 in existing designs?

A: Yes. LP38692SD-3.3/NOPB is a direct equivalent with identical electrical specifications, output voltage, current capacity, dropout voltage, quiescent current, PSRR, operating temperature range, and 6-WSON (3x3) package. The primary difference is product status (active vs. obsolete) and RoHS3 compliance.

Q: What is the difference between LP38692 and LP38690 base product lines?

A: Both product lines deliver identical electrical performance for this 3.3V 1A application. The LP38690 variants (LP38690SD-3.3/NOPB and LP38690SDX-3.3/NOPB) are parametric equivalents with the same output voltage, current capacity, dropout voltage, quiescent current, PSRR, and package specifications. Selection between LP38692 and LP38690 variants should be based on packaging availability and inventory requirements.

Q: What do the suffixes SD, SDX, and /NOPB indicate?

A: SD and SDX designate different package variants within the same electrical specification. /NOPB indicates lead-free (no lead, no plumbum) RoHS-compliant packaging. The X in SDX may indicate a specific manufacturing or packaging variant. All variants maintain identical electrical performance.

Q: Are there packaging differences among the substitute parts?

A: LP38692SD-3.3/NOPB, LP38690SD-3.3/NOPB, and LP38690SDX-3.3/NOPB are available in Cut Tape (CT) and Digi-Reel packaging. LP38692SDX-3.3/NOPB is supplied in Tape & Reel (TR) packaging. All use the same 6-WSON (3x3) surface mount package with exposed pad. Select based on your assembly process requirements.

Q: Is RoHS3 compliance required for my application?

A: RoHS3 compliance is mandatory for products sold in the European Union and many other regulated markets. All active substitute parts (LP38692SD-3.3/NOPB, LP38690SD-3.3/NOPB, LP38690SDX-3.3/NOPB, LP38692SDX-3.3/NOPB) are RoHS3 compliant. The obsolete LP38692SD-3.3 is RoHS non-compliant and should not be used in new designs intended for regulated markets.

Q: Which substitute has the best inventory availability?

A: LP38690SD-3.3/NOPB and LP38690SDX-3.3/NOPB offer the highest inventory levels at 63,200 and 63,300 pieces respectively. LP38692SD-3.3/NOPB has 26,200 pieces available. LP38692SDX-3.3/NOPB has limited inventory at 991 pieces.