MAX1655ESE Equivalent & Substitute Parts

Part Overview

The MAX1655ESE is a buck regulator positive output step-down DC-DC controller IC manufactured by Analog Devices Inc./Maxim Integrated. This device functions as a transistor driver for step-down topology applications with a single output phase. The MAX1655ESE is currently classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design requirements and component procurement. Active alternatives with identical or parametrically equivalent electrical and mechanical specifications are available to support continued system implementation.

Substiute Parts

MAX1655ESE

Analog Devices Inc./Maxim IntegratedIn Stock: 2525MAX1655ESE Datasheet

Current PartRFQ

MAX1655ESE+

Analog Devices Inc./Maxim IntegratedIn Stock: 2252MAX1655ESE+ Datasheet

DirectRFQ

MAX1653ESE+

Analog Devices Inc./Maxim IntegratedIn Stock: 945MAX1653ESE+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX1655ESE are identified based on strict electrical and mechanical parameter equivalence within the power management controller category. The substitution logic is based on the following critical parameters that determine functional interchangeability:

Electrical Parameters:

• Voltage supply range: 4.5V ~ 30V
• Switching frequency: 150kHz, 300kHz
• Maximum duty cycle: 98%
• Output topology: Buck (step-down, positive output, single phase)
• Synchronous rectifier and clock sync capability
• Control features: Enable and soft start functions
• Operating temperature range: -40°C ~ 85°C

Mechanical Parameters:

• Package type: 16-SOIC (0.154", 3.90mm Width)
• Mounting type: Surface mount
• Moisture sensitivity level: 1 (Unlimited)

All substitute parts listed maintain identical electrical specifications and mechanical compatibility with the original MAX1655ESE, ensuring direct functional replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

MAX1655ESE+ (Direct Manufacturer Successor)

The MAX1655ESE+ is the direct active successor to the obsolete MAX1655ESE. This part maintains identical electrical and mechanical specifications while offering improved compliance status. The MAX1655ESE+ is ROHS3 compliant, addressing regulatory requirements for new designs and procurement cycles. With 2200 units in current inventory, this part is the primary recommendation for direct replacement in existing applications.

MAX1653ESE+ (Parametric Equivalent)

The MAX1653ESE+ is a parametrically equivalent alternative from the same manufacturer family. This device shares all critical electrical parameters and mechanical compatibility with the MAX1655ESE. The MAX1653ESE+ is also ROHS3 compliant and maintains active product status. With 893 units available, this part serves as a secondary equivalent option when MAX1655ESE+ availability is constrained.

Both substitute parts eliminate the obsolescence risk associated with the original MAX1655ESE while maintaining full functional compatibility in buck regulator controller applications.

Frequently Asked Questions (FAQ)

Q: Can MAX1655ESE+ be used as a direct replacement for MAX1655ESE?

A: Yes. The MAX1655ESE+ maintains identical electrical specifications (4.5V ~ 30V supply, 150kHz/300kHz switching frequency, 98% maximum duty cycle) and mechanical compatibility (16-SOIC package, surface mount). The primary difference is product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between MAX1655ESE+ and MAX1653ESE+?

A: Both parts are parametrically equivalent with identical electrical and mechanical specifications. The primary distinction is the base product number (MAX1655 vs. MAX1653). Both are active, ROHS3 compliant, and suitable for buck regulator controller applications with the specified voltage range and switching frequency.

Q: Are the 16-SOIC packages identical between all three parts?

A: Yes. All three parts use the 16-SOIC package with 0.154" width (3.90mm). PCB footprints and board-level integration are identical, enabling direct component substitution without layout modifications.

Q: What compliance certifications apply to the substitute parts?

A: Both MAX1655ESE+ and MAX1653ESE+ are ROHS3 compliant and REACH unaffected. The original MAX1655ESE is RoHS non-compliant, making the substitutes necessary for applications requiring regulatory compliance.

Q: Can these parts be used interchangeably in the same design?

A: Yes. All three parts share identical control features (enable, soft start), synchronous rectifier capability, and clock sync functionality. Circuit design and component selection remain unchanged when substituting between these parts.