MAX770CSA-T Equivalent & Substitute Parts

Part Overview

The MAX770CSA-T is a Boost Regulator Positive Output Step-Up DC-DC Controller IC manufactured by Analog Devices Inc./Maxim Integrated in 8-SOIC packaging. This component functions as a transistor driver for step-up (boost) topology power management applications with a single positive output phase. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

MAX770CSA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1240MAX770CSA-T Datasheet

Current PartRFQ

MAX770CSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3057MAX770CSA+T Datasheet

DirectRFQ

MAX771CSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 808MAX771CSA+T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX770CSA-T are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

• Identical function (Step-Up DC-DC Controller)
• Identical output type (Transistor Driver)
• Identical output configuration (Positive)
• Identical topology (Boost)
• Identical number of outputs (1)
• Identical voltage supply range (3V ~ 16.5V)
• Identical switching frequency (300kHz)
• Identical control features (Enable)
• Identical operating temperature range (0°C ~ 70°C)
• Identical package and case dimensions (8-SOIC, 0.154", 3.90mm Width)
• Identical mounting type (Surface Mount)
• Identical synchronous rectifier configuration (No)
• Identical clock sync configuration (No)

Substitutes are categorized as follows:

Direct Manufacturer Substitute: MAX770CSA+T — functionally identical with updated RoHS3 compliance and active product status.

Parametric Equivalent: MAX771CSA+T — maintains all electrical and mechanical parameters with active product status and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The MAX770CSA-T is classified as obsolete. For new designs and production continuity, the MAX770CSA+T is the primary substitute, offering identical electrical and mechanical specifications with the advantage of active product status and ROHS3 compliance. This direct substitute maintains full compatibility with existing circuit designs.

The MAX771CSA+T serves as a parametric equivalent, maintaining all critical electrical and mechanical parameters while offering active product status and ROHS3 compliance. This option is suitable for applications where the MAX770CSA+T is unavailable.

Both substitute parts are manufactured by the same supplier (Analog Devices Inc./Maxim Integrated) and share identical packaging, thermal characteristics, and functional specifications with the original component.

Frequently Asked Questions (FAQ)

Q: Can MAX770CSA+T be used as a direct replacement for MAX770CSA-T?

A: Yes. The MAX770CSA+T is a direct manufacturer substitute with identical electrical and mechanical parameters, including voltage supply range (3V ~ 16.5V), switching frequency (300kHz), package type (8-SOIC), and operating temperature range (0°C ~ 70°C). The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 Compliant vs. non-compliant).

Q: What is the difference between MAX770CSA+T and MAX771CSA+T?

A: Both parts are parametric equivalents with identical electrical specifications and 8-SOIC packaging. The primary difference is the base product number (MAX770 vs. MAX771). Both are active products with ROHS3 compliance and equivalent performance characteristics for boost regulator controller applications.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 8-SOIC package with identical dimensions (0.154", 3.90mm Width) and are surface mount components. Pin compatibility is maintained across all three part numbers.

Q: What compliance certifications apply to the substitute parts?

A: Both MAX770CSA+T and MAX771CSA+T are ROHS3 compliant and REACH unaffected. The original MAX770CSA-T is RoHS non-compliant, making the substitutes suitable for applications requiring modern environmental compliance standards.

Q: Can these parts be used in applications requiring higher operating temperatures?

A: No. All three parts share the same operating temperature range of 0°C ~ 70°C (TA). Applications requiring extended temperature ranges require alternative component selection.