MAX6191AESA Equivalent & Substitute Parts

Part Overview

The MAX6191AESA is a Series Voltage Reference IC manufactured by Analog Devices Inc./Maxim Integrated, designed to provide a fixed 2.048V output with ±0.1% tolerance. This component is classified as a Power Management (PMIC) device and is packaged in an 8-SOIC surface mount configuration. The part is currently listed as obsolete, making identification of suitable substitutes essential for ongoing design support and production continuity.

Substiute Parts

MAX6191AESA

Analog Devices Inc./Maxim IntegratedIn Stock: 3761MAX6191AESA Datasheet

Current PartRFQ

MAX6191AESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2014MAX6191AESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX6191AESA is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 2.048V
• Output current capability of 500 µA minimum
• Tolerance specification of ±0.1%
• Temperature coefficient of 5ppm/°C
• Input voltage range of 2.5V ~ 12.6V
• 8-SOIC surface mount package configuration
• Series reference type with fixed output topology

The MAX6191AESA+ qualifies as a direct substitute based on identical electrical specifications and package geometry. The primary distinction between these parts is product status and compliance certification, not functional or electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The MAX6191AESA+ is the direct functional equivalent of the MAX6191AESA. Both parts deliver identical electrical performance across all specified parameters. Selection between these parts should be based on the following criteria:

For new designs or production requiring regulatory compliance, the MAX6191AESA+ is the appropriate choice. This part carries Active product status and meets ROHS3 compliance requirements, ensuring long-term availability and regulatory alignment.

For legacy system maintenance or applications where RoHS non-compliance is not a constraint, the MAX6191AESA remains functionally equivalent. However, given the Obsolete status of the original part, the MAX6191AESA+ is preferred to ensure supply chain continuity.

Both parts are supplied by Analog Devices Inc./Maxim Integrated and maintain identical pinout, electrical characteristics, and thermal performance across the specified operating temperature range of -40°C to 85°C.

Frequently Asked Questions (FAQ)

Q: Can the MAX6191AESA+ be used as a direct replacement for the MAX6191AESA?

A: Yes. The MAX6191AESA+ is electrically and mechanically identical to the MAX6191AESA. All electrical parameters, including output voltage, tolerance, temperature coefficient, noise specifications, and input voltage range are equivalent. Both parts use the same 8-SOIC package with identical pinout and footprint.

Q: What is the difference between MAX6191AESA and MAX6191AESA+?

A: The primary differences are product status and compliance certification. The MAX6191AESA is listed as Obsolete and RoHS non-compliant, while the MAX6191AESA+ carries Active product status and is ROHS3 compliant. Electrical and functional specifications are identical.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts are packaged in 8-SOIC (0.154", 3.90mm Width) with identical pinout and footprint. PCB layout and component placement require no modification when substituting between these parts.

Q: What is the output voltage tolerance for these reference ICs?

A: Both parts maintain a tolerance of ±0.1% on the fixed 2.048V output voltage, with a temperature coefficient of 5ppm/°C across the operating temperature range of -40°C to 85°C.

Q: What input voltage range is required for proper operation?

A: Both the MAX6191AESA and MAX6191AESA+ require an input voltage between 2.5V and 12.6V for proper operation.

Q: Is the MAX6191AESA+ suitable for new product designs?

A: Yes. The MAX6191AESA+ is the recommended choice for new designs due to its Active product status and ROHS3 compliance certification, ensuring long-term supply availability and regulatory alignment.