AP130-18WG-7 Equivalent & Substitute Parts

Part Overview

The AP130-18WG-7 is a linear voltage regulator IC from Diodes Incorporated, classified as a Power Management (PMIC) component. It delivers a fixed 1.8V output at 300mA with a maximum dropout voltage of 0.5V, housed in an SC-59-3 package. The device is currently in active production status with 9400 units in stock.

Substitute parts become necessary when the primary part number reaches end-of-life status, when packaging requirements change, or when alternative tape configurations are required for manufacturing processes. The AP130 series provides multiple equivalent options that maintain identical electrical performance while offering different packaging and supplier configurations.

Substiute Parts

AP130-18WG-7

Diodes IncorporatedIn Stock: 9473AP130-18WG-7 Datasheet

Current PartRFQ

AP130-18RG-7

Diodes IncorporatedIn Stock: 9330AP130-18RG-7 Datasheet

Parametric EquivalentRFQ

AP130-18SAG-7

Diodes IncorporatedIn Stock: 4461AP130-18SAG-7 Datasheet

Parametric EquivalentRFQ

AP130-18WL-7

Diodes IncorporatedIn Stock: 10632AP130-18WL-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the AP130 series is determined by electrical parameter equivalence and package compatibility. All substitute parts maintain identical output voltage (1.8V), output current (300mA), input voltage rating (5.5V maximum), quiescent current (100 µA), and PSRR (58dB at 100Hz). The primary differentiators are:

Packaging Configuration: Parts are available in SC-59-3 (standard tape & reel) and SOT-23-3 (alternative tape & reel) packages, all compatible with surface mount assembly.

Supplier Device Package: Variants include SC-59-3, SC-59R, and SOT-23-3 designations, reflecting different manufacturing and distribution configurations.

Dropout Voltage: The AP130-18RG-7 offers a reduced maximum dropout of 0.4V @ 300mA compared to 0.5V @ 300mA in other variants, providing improved efficiency in low-headroom applications.

Product Status & Availability: The AP130-18WL-7 is marked as obsolete but remains in inventory. Active production parts (AP130-18WG-7, AP130-18RG-7, AP130-18SAG-7) are preferred for new designs.

Tape Configuration: The AP130-18WL-7 is supplied in cut tape (CT) format, while AP130-18WG-7 and AP130-18RG-7 are supplied in tape & reel (TR) format.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Designs: Select AP130-18WG-7 (standard SC-59-3 tape & reel configuration) or AP130-18RG-7 (improved 0.4V dropout variant) as primary choices. Both are in active production status with robust inventory levels.

For Efficiency-Critical Applications: The AP130-18RG-7 is preferred due to its reduced maximum dropout voltage of 0.4V @ 300mA, resulting in lower power dissipation and improved thermal performance compared to 0.5V dropout variants.

For Alternative Package Requirements: The AP130-18SAG-7 provides SOT-23-3 package compatibility while maintaining identical electrical specifications to the SC-59-3 variants. This option is suitable when PCB layout or assembly equipment constraints require the smaller package footprint.

For Obsolete Part Replacement: The AP130-18WL-7 is obsolete and should not be selected for new designs. Existing inventory may be used for legacy product support, but AP130-18WG-7 or AP130-18RG-7 are the recommended long-term alternatives.

Compliance Considerations: All variants are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8542.39.0001. Moisture sensitivity level is 1 (unlimited) across all parts.

Frequently Asked Questions (FAQ)

Q: Can AP130-18RG-7 directly replace AP130-18WG-7?

A: Yes. Both parts are electrically equivalent with identical output voltage (1.8V), output current (300mA), input voltage rating (5.5V), and quiescent current (100 µA). The AP130-18RG-7 offers superior performance with a reduced maximum dropout voltage of 0.4V compared to 0.5V. Both are in active production status.

Q: What is the difference between SC-59-3 and SOT-23-3 packages?

A: Both are surface mount packages with identical electrical performance. SC-59-3 and SOT-23-3 refer to different physical package outlines and pin configurations. Selection depends on PCB layout requirements and assembly equipment compatibility. Verify footprint compatibility with your design before substitution.

Q: Is AP130-18WL-7 suitable for new designs?

A: No. AP130-18WL-7 is marked as obsolete and should not be used for new product development. Use AP130-18WG-7 or AP130-18RG-7 instead. The obsolete part may be used only for legacy product support or repair applications.

Q: What is the significance of the dropout voltage difference between AP130-18RG-7 (0.4V) and other variants (0.5V)?

A: Lower dropout voltage reduces power dissipation and heat generation, particularly in applications with limited input-to-output voltage headroom. The 0.1V difference may be critical in battery-powered or low-voltage supply applications. Select AP130-18RG-7 when thermal performance or efficiency is a design priority.

Q: Are all variants compatible with the same PCB footprint?

A: SC-59-3 and SC-59R variants share compatible footprints. SOT-23-3 (AP130-18SAG-7) requires a different footprint. Verify package compatibility with your PCB design before selecting a substitute part.

Q: What is the tape configuration difference between AP130-18WG-7 and AP130-18WL-7?

A: AP130-18WG-7 is supplied in tape & reel (TR) format for automated assembly. AP130-18WL-7 is supplied in cut tape (CT) format, which is less suitable for high-volume production. For manufacturing efficiency, tape & reel variants (AP130-18WG-7 or AP130-18RG-7) are preferred.

Q: Are all parts RoHS compliant?

A: Yes. All variants (AP130-18WG-7, AP130-18RG-7, AP130-18SAG-7, and AP130-18WL-7) are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for commercial and industrial applications.