ICL7663SCPAZ Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The ICL7663SCPAZ is a linear voltage regulator IC manufactured by Renesas Electronics Corporation, designed for positive adjustable output applications with dual 40mA outputs in an 8-PDIP through-hole package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across an input voltage range of up to 16V with adjustable output from 1.3V to 16V, featuring enable control and over-current protection suitable for low-power regulation applications.

Substiute Parts

ICL7663SCPAZ

Renesas Electronics CorporationIn Stock: 1539ICL7663SCPAZ Datasheet

Current PartRFQ

ICL7663ACPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 946ICL7663ACPA+ Datasheet

DirectRFQ

ICL7663AEPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1031ICL7663AEPA+ Datasheet

UpgradeRFQ

LT3023EMSE#PBF

Analog Devices Inc.In Stock: 1752LT3023EMSE#PBF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ICL7663SCPAZ is determined by the following critical parameters: output configuration (positive), output type (adjustable), package compatibility (8-DIP through-hole), voltage input/output ranges, current output capacity, and control/protection features.

The substitute parts are grouped into two categories:

Direct Substitutes (Pin-Compatible, Same Package): ICL7663ACPA+ and ICL7663AEPA+ maintain identical 8-DIP packaging, positive adjustable output configuration, and compatible voltage/current specifications. These parts share the same base product number (ICL7663) and are manufactured by Analog Devices Inc./Maxim Integrated. The primary difference is the number of regulators (1 output versus 2 outputs in the original) and operating temperature range.

Similar Substitute (Different Package, Enhanced Performance): LT3023EMSE#PBF provides equivalent functional capability with dual adjustable outputs and positive configuration, but uses surface-mount 10-MSOP-EP packaging instead of through-hole DIP. This part offers higher current output (100mA per channel versus 40mA) and extended operating temperature range (-40°C ~ 125°C), making it suitable for designs that can accommodate surface-mount technology and require enhanced thermal performance.

Parameter Comparison

Engineering Selection Recommendations

For through-hole PCB designs requiring direct pin-compatible replacement of the obsolete ICL7663SCPAZ, select either ICL7663ACPA+ or ICL7663AEPA+. Both parts are active products from Analog Devices Inc./Maxim Integrated with ROHS3 compliance and identical packaging. ICL7663AEPA+ is preferred for applications requiring extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C), providing broader environmental coverage.

For new designs or redesigns where surface-mount technology is acceptable, LT3023EMSE#PBF offers superior performance characteristics including higher current output (100mA per channel), extended input voltage range (20V maximum), and wider operating temperature range (-40°C ~ 125°C). This part also includes over-temperature and reverse-polarity protection in addition to over-current protection.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory compatibility with the original component.

Frequently Asked Questions (FAQ)

Q: Can ICL7663ACPA+ or ICL7663AEPA+ be used as direct replacements for ICL7663SCPAZ?

A: Yes, both parts are pin-compatible direct substitutes with identical 8-DIP through-hole packaging. The primary difference is the number of integrated regulators (1 output versus 2 outputs). Verify your circuit design uses only one regulator output or can accommodate the single-output configuration.

Q: What is the key difference between ICL7663ACPA+ and ICL7663AEPA+?

A: Both parts are functionally identical with the same package, voltage ratings, and current specifications. The difference is operating temperature range: ICL7663ACPA+ operates 0°C ~ 70°C, while ICL7663AEPA+ operates -40°C ~ 85°C. Select ICL7663AEPA+ for applications requiring extended low-temperature or high-temperature operation.

Q: Why does LT3023EMSE#PBF have different packaging?

A: LT3023EMSE#PBF uses 10-MSOP-EP surface-mount packaging instead of 8-DIP through-hole. This package type is not pin-compatible and requires PCB redesign. However, it provides higher current output (100mA per channel) and enhanced protection features, making it suitable for new designs or board revisions.

Q: Can LT3023EMSE#PBF replace ICL7663SCPAZ in existing through-hole designs?

A: No. LT3023EMSE#PBF requires surface-mount assembly and cannot be directly installed in through-hole PCB layouts. Use this part only for new designs or PCB redesigns that accommodate surface-mount technology.

Q: Are all substitute parts RoHS compliant?

A: Yes. ICL7663ACPA+, ICL7663AEPA+, and LT3023EMSE#PBF are all ROHS3 compliant with MSL Level 1 rating and REACH unaffected status, matching the regulatory compliance of the original ICL7663SCPAZ.

Q: What is the impact of the different number of regulators?

A: ICL7663SCPAZ and LT3023EMSE#PBF each contain 2 independent regulators, while ICL7663ACPA+ and ICL7663AEPA+ contain 1 regulator. If your design requires dual independent regulated outputs, use LT3023EMSE#PBF or verify that ICL7663SCPAZ's second regulator is unused in your application before selecting the single-output alternatives.