MAX765CSA Buck-Boost Switching Regulator IC Equivalent & Substitute Parts

Part Overview

The MAX765CSA is a buck-boost switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for negative adjustable output voltage applications. This device functions as a step-up/step-down converter with a single negative output, delivering 120mA at fixed -1V (-12V) output configuration. The MAX765CSA is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability.

Substiute Parts

MAX765CSA

Analog Devices Inc./Maxim IntegratedIn Stock: 6706MAX765CSA Datasheet

Current PartRFQ

MAX765CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2377MAX765CSA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX765CSA is determined by strict equivalence across the following critical parameters:

• Input voltage range: 3V to 16V
• Output voltage configuration: Negative, fixed at -1V (-12V), maximum -16V
• Output current capacity: 120mA minimum
• Switching frequency: 300kHz
• Package type: 8-SOIC (0.154", 3.90mm Width)
• Mounting configuration: Surface Mount
• Topology: Buck-Boost

The MAX765CSA+ qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction between these parts is product status and compliance certification, not functional or electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The MAX765CSA+ is the direct active equivalent for the obsolete MAX765CSA. Both parts share identical electrical and mechanical specifications, ensuring pin-for-pin compatibility and functional equivalence in circuit applications.

The MAX765CSA+ offers the advantage of active product status, ensuring continued availability and manufacturing support. Additionally, the MAX765CSA+ meets ROHS3 compliance requirements, whereas the original MAX765CSA is RoHS non-compliant. For new designs and production applications requiring regulatory compliance, the MAX765CSA+ is the appropriate selection.

Both parts maintain identical moisture sensitivity classification (MSL 1 - Unlimited) and REACH status, indicating equivalent handling and environmental compliance profiles.

Frequently Asked Questions (FAQ)

Q: Can MAX765CSA+ be used as a direct replacement for MAX765CSA in existing designs?

A: Yes. The MAX765CSA+ is electrically and mechanically identical to the MAX765CSA. Both parts feature the same input voltage range (3V to 16V), output voltage configuration (-1V fixed, -16V maximum), 120mA output current, 300kHz switching frequency, and 8-SOIC package. Pin-for-pin substitution is supported without circuit modification.

Q: What is the primary difference between MAX765CSA and MAX765CSA+?

A: The MAX765CSA is classified as obsolete, while the MAX765CSA+ maintains active product status. The MAX765CSA+ also meets ROHS3 compliance standards, whereas the original MAX765CSA is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: Both parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package. The MAX765CSA+ is supplied in Tube packaging, while the original MAX765CSA packaging specification is not designated. The package footprint and pinout remain identical.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by: input voltage range (3V to 16V), negative output voltage configuration (-1V fixed, -16V maximum), 120mA output current capacity, 300kHz switching frequency, 8-SOIC package type, and surface mount mounting configuration. Any deviation in these parameters disqualifies a part as a direct substitute.

Q: Is the MAX765CSA+ suitable for new product designs?

A: Yes. The MAX765CSA+ is an active product with current manufacturing support and ROHS3 compliance certification, making it appropriate for new designs requiring negative buck-boost regulation at 120mA output current.