AP1601M8G-13 Equivalent & Substitute Parts

Part Overview

The AP1601M8G-13 is a boost switching regulator IC manufactured by Diodes Incorporated, designed for step-up voltage conversion applications. This device delivers positive adjustable output from 2V to 5.5V with 1.5A switch current capability in an 8-MSOP package. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

AP1601M8G-13

Diodes IncorporatedIn Stock: 2332AP1601M8G-13 Datasheet

Current PartRFQ

LTC3499EMS8#PBF

Analog Devices Inc.In Stock: 1233LTC3499EMS8#PBF Datasheet

MFR RecommendedRFQ

MAX8569AEUT+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1916MAX8569AEUT+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP1601M8G-13 are identified based on the following critical parameters that define functional equivalence:

• Topology: Boost (step-up) switching regulator
• Output Configuration: Positive adjustable voltage
• Output Voltage Range: Minimum 2V capability with upper range compatibility
• Operating Temperature Range: -40°C to 85°C
• Regulatory Compliance: ROHS3 and REACH compliance
• Package Compatibility: Surface mount packages suitable for 8-pin configurations

The identified substitutes maintain boost topology and adjustable positive output characteristics. However, differences exist in output current capacity, input voltage minimums, switching frequency, and package form factors. These variations require evaluation based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

LTC3499EMS8#PBF is the primary substitute when package footprint compatibility with 8-MSOP is required. This part maintains identical package geometry and pinout compatibility with the AP1601M8G-13. Both devices operate across the full -40°C to 85°C temperature range and meet ROHS3 compliance requirements. The LTC3499EMS8#PBF features active product status with unlimited moisture sensitivity rating, providing superior long-term availability and storage characteristics compared to the obsolete AP1601M8G-13.

MAX8569AEUT+T serves as an alternative when package form factor flexibility exists. This device operates within the same temperature range and maintains ROHS3 compliance. The SOT-23-6 package offers a smaller footprint alternative to the 8-MSOP configuration. Product status is active with unlimited MSL rating.

Both substitutes employ synchronous rectification, improving efficiency compared to the non-synchronous AP1601M8G-13. Output current capacity is reduced to 750mA in both alternatives, requiring verification that application requirements do not exceed this specification.

Frequently Asked Questions (FAQ)

Q: Can the LTC3499EMS8#PBF directly replace the AP1601M8G-13 without PCB modifications?

A: The LTC3499EMS8#PBF maintains identical 8-MSOP package geometry and pinout compatibility. Direct PCB substitution is possible without layout changes. Verify that the 750mA output current specification meets application requirements, as this represents a reduction from the original 1.5A capability.

Q: What is the impact of the higher switching frequency in the LTC3499EMS8#PBF?

A: The LTC3499EMS8#PBF operates at 1.2MHz compared to the AP1601M8G-13 at 100kHz. Higher switching frequency typically reduces external component size requirements but may increase EMI considerations. Application-specific filtering and layout practices should be evaluated.

Q: Is the MAX8569AEUT+T suitable for applications requiring the 8-MSOP package?

A: No. The MAX8569AEUT+T uses SOT-23-6 packaging, which has different pinout and footprint characteristics. This part requires PCB redesign and is suitable only when package form factor flexibility exists.

Q: How do the input voltage minimums affect substitution decisions?

A: The AP1601M8G-13 accepts input as low as 1.1V. The LTC3499EMS8#PBF requires minimum 1.8V input, and the MAX8569AEUT+T requires 1.5V minimum. Applications operating below these thresholds cannot use these substitutes.

Q: What is the significance of the synchronous rectifier feature in the substitute parts?

A: Both substitute parts include integrated synchronous rectification, which reduces conduction losses and improves overall efficiency compared to the non-synchronous AP1601M8G-13. This represents a functional improvement for most applications.

Q: Are there any compliance or certification differences between these parts?

A: All three parts meet ROHS3 and REACH compliance requirements. The substitute parts feature superior moisture sensitivity ratings (MSL 1 vs. MSL 3), indicating better storage stability and reduced risk of moisture-related failures during manufacturing.