AP1212LSL-13 Equivalent & Substitute Parts

Part Overview

The AP1212LSL-13 is a Power Switch/Driver IC manufactured by Diodes Incorporated, configured as a 1:2 N-Channel USB Switch with 500mA output capacity in an 8-SOP package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The part provides high-side N-Channel switching with integrated current limiting, over-temperature protection, and UVLO (Under-Voltage Lock-Out) functionality.

Substiute Parts

AP1212LSL-13

Diodes IncorporatedIn Stock: 12697AP1212LSL-13 Datasheet

Current PartRFQ

AP2146SG-13

Diodes IncorporatedIn Stock: 4684AP2146SG-13 Datasheet

MFR RecommendedRFQ

AP1212LSG-13

Diodes IncorporatedIn Stock: 2808AP1212LSG-13 Datasheet

Parametric EquivalentRFQ

LM3526M-L/NOPB

Texas InstrumentsIn Stock: 26857LM3526M-L/NOPB Datasheet

MFR RecommendedRFQ

LM3526MX-L/NOPB

Texas InstrumentsIn Stock: 42993LM3526MX-L/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AP1212LSL-13 is determined by the following critical parameters:

Functional Requirements:

• USB Switch topology with 1:2 input-to-output ratio
• 500mA maximum output current capability
• High-side switching configuration
• 2.7V to 5.5V load voltage range
• On/Off interface control
• Status flag output
• Current limiting (fixed), over-temperature, and UVLO fault protection

Physical Requirements:

• 8-SOIC package form factor (0.154", 3.90mm width)
• Surface mount technology

Compliance Requirements:

• ROHS3 compliance
• EAR99 export classification

Substitute parts are grouped into two categories: parametric equivalents (matching N-Channel output type) and manufacturer-recommended alternatives (P-Channel variants with equivalent electrical performance in USB switching applications).

Parameter Comparison

Engineering Selection Recommendations

For Direct N-Channel Replacement: AP1212LSG-13 is a parametric equivalent offering identical electrical specifications and operating temperature range (-40°C to 125°C). Both parts are obsolete; however, AP1212LSG-13 maintains the same N-Channel topology and 110mOhm Rds On characteristic. This option is suitable when circuit design specifically requires N-Channel switching architecture.

For Active Production Status with Enhanced Reliability: AP2146SG-13 (Diodes Incorporated) and LM3526M-L/NOPB or LM3526MX-L/NOPB (Texas Instruments) are active products offering superior long-term availability. These P-Channel alternatives provide equivalent functional performance in USB switching applications with improved moisture sensitivity (MSL 1 vs. MSL 3). The trade-off is a reduced operating temperature upper limit for AP2146SG-13 (-40°C to 85°C) compared to the original part's 125°C maximum. LM3526 variants maintain the full -40°C to 125°C operating range.

Packaging and Compliance: All substitute parts maintain 8-SOIC package compatibility, ROHS3 compliance, and EAR99 export classification. LM3526MX-L/NOPB offers the highest inventory availability (42,900 units) with Cut Tape and Digi-Reel packaging options.

Frequently Asked Questions (FAQ)

Q: Can AP2146SG-13 (P-Channel) directly replace AP1212LSL-13 (N-Channel) in existing designs?

A: AP2146SG-13 is functionally equivalent for USB switching applications but uses P-Channel topology instead of N-Channel. Circuit-level modifications may be required depending on gate drive and load configuration. Both parts share identical 500mA output current, 2.7V-5.5V load voltage range, and 1:2 switching ratio. Verify gate drive polarity and control signal requirements before substitution.

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

A: Both LM3526 variants are electrically identical P-Channel USB switches with 500mA output and 100mOhm Rds On. The primary difference is packaging format: LM3526M-L/NOPB is supplied in Tube packaging, while LM3526MX-L/NOPB uses Cut Tape and Digi-Reel. Both maintain -40°C to 125°C operating temperature and MSL 1 moisture sensitivity.

Q: Why is the operating temperature range different for AP2146SG-13?

A: AP2146SG-13 specifies -40°C to 85°C (TA) versus the original part's -40°C to 125°C (TA). This represents a design difference between the P-Channel and N-Channel variants. For applications requiring full -40°C to 125°C operation, LM3526 series (both variants) maintains the extended temperature range.

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

A: Yes. All listed substitutes use the 8-SOIC (0.154", 3.90mm width) package, ensuring mechanical and electrical compatibility with existing PCB layouts and sockets.

Q: What is the significance of MSL (Moisture Sensitivity Level) differences?

A: AP1212LSL-13 and AP1212LSG-13 carry MSL 3 (168-hour floor life), requiring controlled storage and handling. AP2146SG-13 and LM3526 variants carry MSL 1 (unlimited floor life), offering superior shelf stability and reduced risk of moisture-induced failures during storage and assembly.

Q: Which substitute offers the best long-term availability?

A: LM3526MX-L/NOPB (Texas Instruments) is classified as active product status with the highest inventory level (42,900 units). This part provides the most reliable long-term sourcing option for new designs and production continuity.