ICL7660SIPA Equivalent & Substitute Parts

Part Overview

The ICL7660SIPA is a charge pump switching regulator IC manufactured by Renesas Electronics Corporation, designed for power management applications requiring positive or negative fixed voltage outputs. This device generates either -Vin or 2Vin output from a single 1.5V to 12V input supply, delivering up to 45mA output current. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer	Renesas Electronics Corporation
Category	Power Management (PMIC)
Topology	Charge Pump
Output Configuration	Positive or Negative
Output Type	Fixed
Number of Outputs	1
Voltage - Input Range	1.5V to 12V
Voltage - Output	-Vin, 2Vin
Current - Output	45mA
Frequency - Switching	10kHz to 35kHz
Operating Temperature	-40°C to 85°C
Mounting Type	Through Hole
Package / Case	8-DIP (0.300", 7.62mm)
Supplier Device Package	8-PDIP

Substitute Part Grouping Explanation

Substitution eligibility for the ICL7660SIPA is determined by the following critical parameters:

Topology: Charge pump architecture
Output Configuration: Positive or negative voltage capability
Output Type: Fixed voltage generation
Package / Case: 8-DIP (0.300", 7.62mm) form factor
Mounting Type: Through hole compatibility
Input Voltage Range: 1.5V to 12V operation
Output Voltage: -Vin or 2Vin generation capability
Operating Temperature Range: -40°C to 85°C

Substitute parts must maintain compatibility across all these parameters. Output current capacity may vary within application-specific limits, and switching frequency variations are acceptable provided the device operates within the specified input and output voltage requirements.

Parameter Comparison

Parameter	ICL7660SIPA	ICL7660SIPAZ	TC7660SEPA
Manufacturer	Renesas Electronics	Renesas Electronics	Microchip Technology
Product Status	Obsolete	Active	Active
Topology	Charge Pump	Charge Pump	Charge Pump
Output Configuration	Positive or Negative	Positive or Negative	Positive or Negative
Output Type	Fixed	Fixed	Fixed
Number of Outputs	1	1	1
Voltage - Input (Min)	1.5V	1.5V	1.5V
Voltage - Input (Max)	12V	12V	12V
Voltage - Output	-Vin, 2Vin	-Vin, 2Vin	-Vin, 2Vin
Current - Output	45mA	45mA	20mA
Frequency - Switching	10kHz to 35kHz	10kHz to 35kHz	10kHz to 45kHz
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ICL7660SIPAZ (Renesas Electronics Corporation) is the direct equivalent substitute for the ICL7660SIPA. Both devices share identical electrical specifications, including 45mA output current capacity, 10kHz to 35kHz switching frequency, and fixed voltage output topology. The ICL7660SIPAZ maintains active product status and achieves ROHS3 compliance, addressing regulatory requirements for new designs while providing pin-for-pin compatibility and identical package form factor.

TC7660SEPA (Microchip Technology) functions as a compatible alternative charge pump regulator with the same input voltage range, output voltage capability, and 8-DIP package configuration. The primary distinction is reduced output current capacity at 20mA compared to the 45mA specification of the ICL7660SIPA. This device is suitable for applications where output current requirements do not exceed 20mA. The TC7660SEPA also maintains active product status and ROHS3 compliance.

Selection between ICL7660SIPAZ and TC7660SEPA depends on application current requirements. For designs requiring the full 45mA output current capability, ICL7660SIPAZ is the appropriate selection. For applications with output current demands of 20mA or less, TC7660SEPA provides an alternative from a different manufacturer with equivalent functional performance.

Frequently Asked Questions (FAQ)

Q: Can ICL7660SIPAZ be used as a direct replacement for ICL7660SIPA?

A: Yes. The ICL7660SIPAZ is a direct equivalent with identical electrical and mechanical specifications, including output current capacity, switching frequency range, input/output voltage parameters, and 8-DIP package form factor. Pin configuration and functional behavior are identical.

Q: What is the primary limitation of TC7660SEPA compared to ICL7660SIPA?

A: The TC7660SEPA delivers a maximum output current of 20mA, whereas the ICL7660SIPA provides 45mA. All other electrical parameters, including input voltage range, output voltage configuration, operating temperature, and package form factor, remain compatible. Applications requiring output currents exceeding 20mA cannot use the TC7660SEPA.

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

A: Yes. All three devices use the 8-DIP (0.300", 7.62mm) through-hole package with identical pin spacing and configuration, enabling direct PCB layout compatibility without modification.

Q: What compliance differences exist between the original and substitute parts?

A: The ICL7660SIPA is RoHS non-compliant. Both ICL7660SIPAZ and TC7660SEPA achieve ROHS3 compliance, meeting current regulatory requirements for new product designs and manufacturing in regulated markets.

Q: Can TC7660SEPA be used in all applications designed for ICL7660SIPA?

A: TC7660SEPA is suitable only for applications where the output current requirement does not exceed 20mA. Designs requiring the full 45mA output current capacity must use ICL7660SIPAZ or the original ICL7660SIPA.

Q: What is the switching frequency difference between ICL7660SIPA and TC7660SEPA?

A: ICL7660SIPA operates at 10kHz to 35kHz, while TC7660SEPA operates at 10kHz to 45kHz. Both ranges overlap, and the higher maximum frequency of TC7660SEPA does not create compatibility issues for applications designed around the ICL7660SIPA specification.

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