MAX680ESA-T Equivalent & Substitute Parts

Part Overview

The MAX680ESA-T is a Charge Pump Switching Regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed to generate positive and negative dual rail outputs from a single input supply. This device produces fixed ±2Vin outputs at 10mA output current with an 8kHz switching frequency in an 8-SOIC surface mount package.

The MAX680ESA-T is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued design support, maintain supply chain reliability, and enable procurement of functionally compatible alternatives for new production runs or legacy system maintenance.

Key Parameters

Parameter	Value
Topology	Charge Pump
Output Configuration	Positive and Negative (Dual Rail)
Output Type	Fixed
Number of Outputs	2
Voltage - Input Range	2V to 6V
Voltage - Output	±2Vin
Current - Output	10mA
Frequency - Switching	8kHz
Operating Temperature	-40°C to 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MAX680ESA-T is determined by strict equivalence across the following critical parameters:

Topology: Charge Pump architecture
Output Configuration: Positive and Negative (Dual Rail) generation
Output Type: Fixed voltage ratio (±2Vin)
Number of Outputs: Dual output channels
Input Voltage Range: 2V to 6V compatibility
Output Current Capability: 10mA minimum
Switching Frequency: 8kHz operation
Package: 8-SOIC form factor with identical pinout
Operating Temperature Range: -40°C to 85°C
Compliance: ROHS3 Compliant, REACH Unaffected

The MAX680ESA+T meets all substitution criteria as a direct equivalent part, differing only in packaging format (Cut Tape & Digi-Reel) and product status (Active vs. Obsolete).

Parameter Comparison

Parameter	MAX680ESA-T (Main)	MAX680ESA+T (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Base Product Number	MAX680	MAX680
Category	Power Management (PMIC)	Power Management (PMIC)
Topology	Charge Pump	Charge Pump
Output Configuration	Positive and Negative (Dual Rail)	Positive and Negative (Dual Rail)
Output Type	Fixed	Fixed
Number of Outputs	2	2
Voltage - Input (Min)	2V	2V
Voltage - Input (Max)	6V	6V
Voltage - Output	±2Vin	±2Vin
Current - Output	10mA	10mA
Frequency - Switching	8kHz	8kHz
Synchronous Rectifier	No	No
Operating Temperature	-40°C to 85°C (TA)	-40°C to 85°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC	8-SOIC
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8542.39.0001	8542.39.0001
Product Status	Obsolete	Active
Packaging Format	Standard	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

The MAX680ESA+T is a direct functional and electrical equivalent to the MAX680ESA-T. Both parts share identical electrical specifications, thermal characteristics, and compliance certifications (ROHS3, REACH Unaffected, EAR99 classification).

The primary distinction is product status: the MAX680ESA-T is obsolete, while the MAX680ESA+T is active. For new designs or production continuity, the MAX680ESA+T is the recommended selection. Both parts are manufactured by the same supplier and maintain identical pinout and package geometry, ensuring drop-in compatibility in existing PCB layouts.

The packaging format difference (standard vs. Cut Tape & Digi-Reel) reflects supply chain options and does not affect electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the MAX680ESA+T replace the MAX680ESA-T in existing designs?

A: Yes. The MAX680ESA+T is electrically and mechanically identical to the MAX680ESA-T. Both parts feature the same 8-SOIC package, pinout, electrical specifications, and operating characteristics. No circuit modifications are required.

Q: What is the difference between MAX680ESA-T and MAX680ESA+T?

A: The parts are functionally equivalent. The primary differences are product status (obsolete vs. active) and packaging format (standard vs. Cut Tape & Digi-Reel). The electrical and thermal performance are identical.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the MAX680ESA-T and MAX680ESA+T are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What output voltage does this charge pump produce?

A: The MAX680ESA-T and MAX680ESA+T generate fixed dual rail outputs of ±2Vin from an input supply ranging from 2V to 6V. The output voltage ratio is fixed and not adjustable.

Q: What is the maximum output current?

A: Both parts deliver a maximum output current of 10mA per rail in the dual output configuration.

Q: Is the 8-SOIC package suitable for high-volume production?

A: Yes. The 8-SOIC package is a standard surface mount form factor suitable for automated assembly. The MAX680ESA+T is available in Cut Tape and Digi-Reel packaging formats to support production workflows.

Q: What is the operating temperature range?

A: Both parts operate across -40°C to 85°C ambient temperature range, suitable for industrial and commercial applications.

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