MAX764CSA Equivalent & Substitute Parts

Part Overview

The MAX764CSA is a buck-boost switching regulator IC from Analog Devices Inc./Maxim Integrated, designed for negative adjustable output voltage applications. This device generates a fixed -1V (-5V) output with 260mA current capability across an input range of 3V to 16V. The part operates at 300kHz switching frequency and is housed in an 8-SOIC surface mount package.

The MAX764CSA is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently using this regulator.

Substiute Parts

MAX764CSA

Analog Devices Inc./Maxim IntegratedIn Stock: 3741MAX764CSA Datasheet

Current PartRFQ

MAX764CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2243MAX764CSA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX764CSA is determined by strict equivalence across the following critical parameters:

• Topology: Buck-Boost switching regulator
• Output Configuration: Negative voltage
• Output Voltage Range: -1V to -16V
• Output Current: 260mA minimum
• Input Voltage Range: 3V to 16V
• Switching Frequency: 300kHz
• Package Type: 8-SOIC surface mount
• Synchronous Rectifier: Not required

The MAX764CSA+ qualifies as a direct substitute because it maintains identical electrical specifications, package configuration, and functional characteristics. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MAX764CSA+ is the direct equivalent for the obsolete MAX764CSA. Both parts share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility.

Selection between these parts should be based on the following factors:

Product Status: The MAX764CSA is obsolete, while the MAX764CSA+ is active. For new designs or long-term supply requirements, the MAX764CSA+ is the appropriate choice.

Compliance: The MAX764CSA+ meets ROHS3 compliance requirements, whereas the MAX764CSA is RoHS non-compliant. Applications subject to RoHS regulations must use the MAX764CSA+.

Packaging: The MAX764CSA+ is supplied in tube packaging, which may affect procurement and handling procedures compared to the original part.

Electrical Performance: No performance differences exist between the two parts. Both deliver identical voltage regulation, current output, switching frequency, and thermal operating range.

Frequently Asked Questions (FAQ)

Q: Can the MAX764CSA+ be used as a direct replacement for the MAX764CSA?

A: Yes. The MAX764CSA+ is electrically and mechanically identical to the MAX764CSA. Both parts operate with the same input voltage range (3V to 16V), produce identical negative output voltages (-1V to -16V), deliver 260mA output current, and use the same 8-SOIC package. Pin configuration and functional behavior are identical.

Q: What is the primary reason to switch from MAX764CSA to MAX764CSA+?

A: The MAX764CSA is obsolete and no longer manufactured. The MAX764CSA+ is the active production equivalent. Additionally, the MAX764CSA+ meets ROHS3 compliance, making it suitable for applications with environmental or regulatory requirements.

Q: Are there any package differences between these parts?

A: Both parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package. The MAX764CSA+ is supplied in tube packaging, while the original MAX764CSA packaging type is not specified. This affects handling and procurement but does not impact electrical or mechanical compatibility.

Q: What are the critical parameters that define substitution for this buck-boost regulator?

A: Substitution is determined by matching the following parameters: negative output configuration, buck-boost topology, -1V to -16V output voltage range, 260mA output current capability, 3V to 16V input voltage range, 300kHz switching frequency, and 8-SOIC package type. Any deviation in these parameters disqualifies a part as a direct substitute.

Q: Can this part be used in applications requiring positive voltage output?

A: No. The MAX764CSA and MAX764CSA+ are designed exclusively for negative voltage output applications. They cannot be substituted in circuits requiring positive voltage regulation.

Q: What is the operating temperature range for both parts?

A: Both the MAX764CSA and MAX764CSA+ operate across 0°C to 70°C ambient temperature (TA). Applications requiring extended temperature ranges require alternative components.