MAX770CSA+ Equivalent & Substitute Parts

Part Overview

The MAX770CSA+ is a Boost Regulator Positive Output Step-Up DC-DC Controller IC manufactured by Analog Devices Inc./Maxim Integrated. This 8-SOIC surface mount power management IC operates as a transistor driver for step-up topology applications with a single positive output phase. The device is currently in Active product status with 2200 units available in inventory.

Equivalent and substitute parts are necessary when the primary MAX770CSA+ is unavailable, when alternative packaging options are required, or when design flexibility permits selection from the MAX770 controller family. The MAX771CSA+ and MAX772CSA+ are parametric equivalents that share identical electrical specifications and mechanical compatibility within the same package footprint.

Substiute Parts

MAX770CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2288MAX770CSA+ Datasheet

Current PartRFQ

MAX770CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2288MAX770CSA+ Datasheet

DirectRFQ

MAX771CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1112MAX771CSA+ Datasheet

Parametric EquivalentRFQ

MAX772CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2245MAX772CSA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX770CSA+ is determined by strict alignment with the following electrical and mechanical parameters:

• Topology & Function: All substitutes must operate as boost regulators with step-up function and positive output configuration
• Output Architecture: Single output, single phase transistor driver topology
• Supply Voltage Range: 3V ~ 16.5V input compatibility
• Switching Frequency: 300kHz fixed frequency operation
• Control Interface: Enable control feature support
• Package Compatibility: 8-SOIC surface mount package with 0.154" (3.90mm) width
• Thermal Range: 0°C ~ 70°C operating temperature specification
• Compliance: ROHS3 compliance and MSL Level 1 rating

The MAX771CSA+ and MAX772CSA+ meet all electrical and mechanical substitution criteria. Both devices share identical functional specifications, pin compatibility, and thermal characteristics with the MAX770CSA+.

Parameter Comparison

Engineering Selection Recommendations

MAX770CSA+ is the recommended primary selection for new designs. This part carries Active product status from Analog Devices Inc./Maxim Integrated, ensuring ongoing manufacturer support, documentation updates, and long-term availability. The device maintains full ROHS3 compliance and REACH Unaffected status with 2200 units currently in stock.

MAX771CSA+ and MAX772CSA+ are parametric equivalents suitable for applications where the primary part is unavailable or when existing inventory constraints require alternative sourcing. Both devices meet identical electrical and mechanical specifications. However, both carry "Not For New Designs" product status, indicating that Analog Devices Inc./Maxim Integrated does not recommend these parts for new product development. These parts should be reserved for legacy system support, replacement applications, or situations where design flexibility permits their use.

Selection between MAX771CSA+ and MAX772CSA+ depends on packaging availability and inventory requirements. Both devices are supplied in Tube packaging and share identical functional parameters with the MAX770CSA+.

Frequently Asked Questions (FAQ)

Q: Can MAX771CSA+ or MAX772CSA+ be used as direct replacements for MAX770CSA+ in new designs?

A: Electrically and mechanically, yes. All three devices share identical boost regulator specifications, 8-SOIC package compatibility, and control features. However, MAX771CSA+ and MAX772CSA+ carry "Not For New Designs" status. New product development should prioritize MAX770CSA+.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is valid when the following parameters match: boost topology, step-up function, positive output configuration, single output/single phase architecture, 3V ~ 16.5V supply range, 300kHz switching frequency, 8-SOIC package footprint, and 0°C ~ 70°C operating temperature range.

Q: Are there packaging differences between these parts?

A: MAX770CSA+ is available in standard packaging. MAX771CSA+ and MAX772CSA+ are supplied in Tube packaging. All three use the same 8-SOIC (0.154", 3.90mm Width) case. Packaging format does not affect electrical performance or pin compatibility.

Q: Do all three parts meet the same compliance standards?

A: Yes. MAX770CSA+, MAX771CSA+, and MAX772CSA+ are all ROHS3 compliant, REACH Unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: Which part should be selected if MAX770CSA+ is unavailable?

A: MAX772CSA+ is the preferred alternative, with 2229 units in inventory compared to 1096 units for MAX771CSA+. Both are parametric equivalents with identical specifications.