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 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 MAX770CSA is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design considerations. Direct manufacturer alternatives and parametric equivalents are available from the same manufacturer family.

Substiute Parts

MAX770CSA

Analog Devices Inc./Maxim IntegratedIn Stock: 5176MAX770CSA 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 equivalence across the following critical parameters:

Core Functional Parameters:

• Output Type: Transistor Driver
• Function: Step-Up (Boost)
• Output Configuration: Positive
• Topology: Boost
• Number of Outputs: 1
• Output Phases: 1

Electrical Parameters:

• Voltage Supply Range (Vcc/Vdd): 3V ~ 16.5V
• Switching Frequency: 300kHz
• Control Features: Enable

Physical & Environmental Parameters:

• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Operating Temperature Range: 0°C ~ 70°C (TA)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain identical specifications across these parameters, ensuring functional and mechanical compatibility within the same application context.

Parameter Comparison

Engineering Selection Recommendations

MAX770CSA+ (Direct Manufacturer Equivalent)

The MAX770CSA+ is the primary substitute for the obsolete MAX770CSA. This part maintains identical electrical and mechanical specifications while offering Active product status. The MAX770CSA+ is ROHS3 compliant, addressing regulatory requirements for new applications. This part is recommended for direct replacement in existing designs and for new production runs where the MAX770CSA is no longer available.

MAX771CSA+ and MAX772CSA+ (Parametric Equivalents)

The MAX771CSA+ and MAX772CSA+ are parametric equivalents that maintain all critical functional and electrical parameters. Both parts are classified as Not For New Designs, indicating they are available for legacy system support but are not recommended for new product development. These parts are ROHS3 compliant and suitable for replacement in existing systems where the original MAX770CSA or MAX770CSA+ are unavailable.

For new designs, MAX770CSA+ is the preferred selection due to its Active product status. For legacy system maintenance, all three substitute parts provide functional equivalence within the specified parameter set.

Frequently Asked Questions (FAQ)

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

A: Yes. The MAX770CSA+ maintains identical electrical specifications, output configuration, topology, switching frequency, operating temperature range, and 8-SOIC packaging. The primary difference is product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between MAX770CSA+ and the parametric equivalents MAX771CSA+ and MAX772CSA+?

A: All three parts are functionally equivalent across the specified parameters. The primary distinction is product status: MAX770CSA+ is Active, while MAX771CSA+ and MAX772CSA+ are Not For New Designs. For new applications, MAX770CSA+ is the recommended choice.

Q: Are all substitute parts compatible with the same PCB layout?

A: Yes. All substitute parts use identical 8-SOIC (0.154", 3.90mm Width) packaging and Surface Mount mounting type, ensuring mechanical and electrical compatibility with existing PCB designs.

Q: Does the RoHS compliance difference affect substitution?

A: RoHS compliance is a regulatory and supply chain consideration. The MAX770CSA+ and parametric equivalents are ROHS3 compliant, while the original MAX770CSA is not. For applications subject to RoHS regulations, the compliant alternatives are required.

Q: What is the inventory status for each part?

A: MAX770CSA: 5100 Pcs; MAX770CSA+: 2200 Pcs; MAX771CSA+: 1096 Pcs; MAX772CSA+: 2229 Pcs. Availability should be confirmed with the supplier for specific procurement timelines.

Q: Can MAX771CSA+ or MAX772CSA+ be used in new designs?

A: These parts are classified as Not For New Designs. While they are functionally equivalent, MAX770CSA+ is the recommended choice for new product development due to its Active status and long-term availability assurance.