ICL7662CBA Equivalent & Substitute Parts

Part Overview

The ICL7662CBA is a charge pump switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed to generate a negative fixed output voltage (-Vin) from a positive input supply. This component operates as a negative voltage inverter with a single output in an 8-SOIC surface mount package. The ICL7662CBA is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional equivalence in charge pump topology, output configuration, package form factor, and electrical operating parameters.

Substiute Parts

ICL7662CBA

Analog Devices Inc./Maxim IntegratedIn Stock: 6393ICL7662CBA Datasheet

Current PartRFQ

ICL7662CBA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1509ICL7662CBA+ Datasheet

DirectRFQ

LMC7660IM/NOPB

Texas InstrumentsIn Stock: 366686LMC7660IM/NOPB Datasheet

MFR RecommendedRFQ

TC7662BCOA

Microchip TechnologyIn Stock: 16436TC7662BCOA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ICL7662CBA are selected based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Charge pump topology with negative output configuration
• 8-SOIC surface mount package (0.154", 3.90mm Width)
• Fixed output voltage generation (-Vin or equivalent negative output)
• Single output configuration
• 10kHz switching frequency operation
• Ratiometric function

Secondary Compatibility Factors:

• Input voltage range compatibility (minimum 4.5V to maximum 20V for the original part)
• Operating temperature range (0°C ~ 70°C)
• Moisture sensitivity level (MSL 1 - Unlimited)
• Surface mount assembly compatibility

Substitute parts must maintain the same package footprint and pinout compatibility to ensure direct replacement without PCB redesign. Output voltage configuration and topology are non-negotiable parameters for functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

ICL7662CBA+ (Direct Manufacturer Upgrade)

The ICL7662CBA+ is the direct successor from Analog Devices Inc./Maxim Integrated with active product status. This part maintains identical electrical specifications, package form factor, and pinout compatibility with the obsolete ICL7662CBA. The primary distinction is RoHS3 compliance, making it suitable for applications requiring modern regulatory compliance. This is the preferred substitute for direct replacement in existing designs.

LMC7660IM/NOPB (Texas Instruments Alternative)

The LMC7660IM/NOPB from Texas Instruments provides functional equivalence with active product status and RoHS3 compliance. This part operates with a lower minimum input voltage (1.5V versus 4.5V) and reduced maximum input voltage (10V versus 20V), requiring verification that the application input supply falls within the 1.5V to 10V range. The switching frequency and output configuration remain compatible. This option is suitable when Texas Instruments supply chain availability is preferred.

TC7662BCOA (Microchip Technology Alternative)

The TC7662BCOA from Microchip Technology offers the broadest input voltage range (1.5V to 15V) and includes 20mA output current specification. This part supports both positive and negative output configurations, providing design flexibility. The switching frequency range extends to 35kHz maximum. This option is suitable for applications requiring higher output current capability or flexible output polarity configuration.

Compliance Considerations

All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity rating and REACH Unaffected status. The ICL7662CBA+ is the recommended choice for new designs requiring RoHS3 compliance with minimal design changes. The LMC7660IM/NOPB and TC7662BCOA are suitable alternatives when input voltage range requirements align with their specifications.

Frequently Asked Questions (FAQ)

Q: Can the ICL7662CBA+ be used as a direct replacement for the ICL7662CBA?

A: Yes. The ICL7662CBA+ maintains identical electrical specifications, package form factor (8-SOIC), pinout configuration, and functional operation. The primary difference is RoHS3 compliance status. Direct PCB substitution is possible without design modifications.

Q: What are the key differences between the LMC7660IM/NOPB and the original ICL7662CBA?

A: The LMC7660IM/NOPB operates with a lower input voltage range (1.5V to 10V versus 4.5V to 20V). Both parts maintain the same 8-SOIC package, 10kHz switching frequency, and negative output configuration. Verification that the application input supply operates within 1.5V to 10V is required before substitution.

Q: Is the TC7662BCOA compatible with the ICL7662CBA in terms of package and pinout?

A: Yes. The TC7662BCOA uses the same 8-SOIC (0.154", 3.90mm Width) package and maintains charge pump topology with fixed output configuration. The TC7662BCOA supports both positive and negative output modes, whereas the ICL7662CBA is negative-only. Pinout compatibility must be verified against specific application schematics.

Q: What is the impact of the input voltage range differences between substitute parts?

A: The ICL7662CBA operates from 4.5V to 20V. The LMC7660IM/NOPB operates from 1.5V to 10V, and the TC7662BCOA operates from 1.5V to 15V. Applications with input supplies below 4.5V or above 15V require careful part selection. The ICL7662CBA+ maintains the original 4.5V to 20V range.

Q: Are all substitute parts RoHS3 compliant?

A: The ICL7662CBA is RoHS non-compliant. The ICL7662CBA+, LMC7660IM/NOPB, and TC7662BCOA are all ROHS3 compliant, meeting modern regulatory requirements for new designs and production.

Q: What is the significance of the TC7662BCOA supporting both positive and negative output configurations?

A: The TC7662BCOA can generate either negative (-Vin) or positive (2Vin) output voltages depending on configuration. The ICL7662CBA generates only negative output (-Vin). For applications requiring negative output only, the TC7662BCOA operates in negative mode with functional equivalence. The additional positive output capability provides design flexibility for future applications.

Q: Can these parts be used interchangeably in production?

A: Direct interchangeability requires matching input voltage range requirements and output configuration needs. The ICL7662CBA+ is the most direct replacement. The LMC7660IM/NOPB and TC7662BCOA require input voltage range verification before production substitution. All parts maintain the same 8-SOIC package and MSL 1 moisture sensitivity rating.