AP1212HSL-13 Equivalent & Substitute Parts

Part Overview

The AP1212HSL-13 is a Power Switch/Driver IC manufactured by Diodes Incorporated, designed for 1:2 N-Channel USB switching applications with 500mA output capability. This component operates across a 2.7V to 5.5V load voltage range and integrates current limiting, over-temperature protection, and UVLO (Under-Voltage Lock-Out) fault protection. The part is classified as Obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support.

Substiute Parts

AP1212HSL-13

Diodes IncorporatedIn Stock: 12398AP1212HSL-13 Datasheet

Current PartRFQ

AP2156SG-13

Diodes IncorporatedIn Stock: 12914AP2156SG-13 Datasheet

DirectRFQ

AP1212LSG-13

Diodes IncorporatedIn Stock: 2808AP1212LSG-13 Datasheet

Parametric EquivalentRFQ

LM3526M-H/NOPB

Texas InstrumentsIn Stock: 16211LM3526M-H/NOPB Datasheet

MFR RecommendedRFQ

LM3526MX-H/NOPB

Texas InstrumentsIn Stock: 35834LM3526MX-H/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AP1212HSL-13 is determined by the following critical parameters:

• Switch Type & Configuration: USB Switch with 1:2 input-to-output ratio and high-side output configuration
• Output Characteristics: 500mA maximum output current capability
• Load Voltage Range: 2.7V to 5.5V operation
• Package Compatibility: 8-SOIC form factor (0.154", 3.90mm width)
• Protection Features: Current limiting, over-temperature, and UVLO protection
• Interface Type: Non-inverting on/off control with status flag output

Substitute parts are grouped into two categories:

1. Direct Manufacturer Equivalent (Diodes Incorporated): AP2156SG-13 — functionally equivalent with P-Channel output topology and improved MSL rating
2. Parametric Equivalents (Diodes Incorporated): AP1212LSG-13 — maintains N-Channel topology with identical electrical specifications
3. MFR Recommended Alternatives (Texas Instruments): LM3526M-H/NOPB and LM3526MX-H/NOPB — P-Channel variants with active product status and extended temperature range

Parameter Comparison

Engineering Selection Recommendations

For New Designs: Select LM3526MX-H/NOPB (Texas Instruments) or LM3526M-H/NOPB. Both parts carry Active product status, ensuring long-term availability and manufacturing support. The LM3526MX-H/NOPB offers superior inventory availability (35,800 pcs) and is supplied in Cut Tape & Digi-Reel packaging for high-volume production. Both variants feature MSL-1 rating (unlimited moisture exposure) and maintain the full -40°C to 125°C operating temperature range.

For Direct Diodes Incorporated Substitution: AP2156SG-13 is the primary alternative, offering Active product status with improved MSL-1 rating and lower on-resistance (100mOhm vs. 110mOhm). The P-Channel topology provides enhanced reverse current protection. Operating temperature is limited to -40°C to 85°C, which is acceptable for most commercial applications. AP1212LSG-13 maintains identical N-Channel topology and electrical specifications but carries Obsolete status.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory requirements. MSL-1 rated alternatives (AP2156SG-13, LM3526 series) provide superior moisture handling for storage and assembly processes compared to the MSL-3 rated original.

Frequently Asked Questions (FAQ)

Q: Can AP2156SG-13 directly replace AP1212HSL-13 in existing designs?

A: AP2156SG-13 is functionally equivalent with identical electrical specifications (500mA, 2.7V-5.5V, 1:2 configuration, 8-SOIC package). The primary difference is P-Channel vs. N-Channel output topology. Circuit design must accommodate this polarity difference. Both parts share the same package footprint and pin count.

Q: What is the difference between LM3526M-H/NOPB and LM3526MX-H/NOPB?

A: Both are Texas Instruments LM3526 variants with identical electrical and thermal specifications. The primary difference is packaging: LM3526M-H/NOPB is supplied in Tube packaging, while LM3526MX-H/NOPB is supplied in Cut Tape & Digi-Reel format. LM3526MX-H/NOPB offers significantly higher inventory availability (35,800 pcs vs. 16,142 pcs).

Q: Why is AP1212LSG-13 listed if it is also Obsolete?

A: AP1212LSG-13 is a parametric equivalent maintaining N-Channel topology and identical electrical specifications to the original AP1212HSL-13. It is included for reference in applications requiring N-Channel output configuration. However, Active alternatives (LM3526 series) are preferred for new designs due to long-term availability.

Q: Are there temperature range limitations with AP2156SG-13?

A: AP2156SG-13 operates from -40°C to 85°C, compared to the original part's -40°C to 125°C range. This is suitable for commercial and industrial applications. Applications requiring extended high-temperature operation (above 85°C) should use LM3526M-H/NOPB or LM3526MX-H/NOPB, which maintain the full -40°C to 125°C range.

Q: What does MSL-1 vs. MSL-3 rating mean for component handling?

A: MSL-1 (Unlimited) allows indefinite storage at any humidity level without baking requirements. MSL-3 (168 Hours) requires components to be baked before assembly if exposed to humidity for more than 168 hours. AP2156SG-13 and LM3526 variants with MSL-1 rating provide greater flexibility in supply chain and assembly operations.

Q: Are all substitute parts available in the same 8-SOIC package?

A: Yes. All listed substitute parts use the 8-SOIC (0.154", 3.90mm width) package, ensuring PCB footprint compatibility with the original AP1212HSL-13 design.