MAX604EPA Linear Voltage Regulator IC Equivalent & Substitute Parts

Part Overview

The MAX604EPA is a linear voltage regulator IC from Analog Devices Inc./Maxim Integrated, classified as a Power Management (PMIC) component. This device functions as a positive adjustable (fixed) output regulator capable of delivering 500mA output current in an 8-PDIP through-hole package. The MAX604EPA is currently listed as obsolete, making identification of suitable substitute parts essential for ongoing system support, maintenance, and new design implementations where legacy component compatibility is required.

Substiute Parts

MAX604EPA

Analog Devices Inc./Maxim IntegratedIn Stock: 1106MAX604EPA Datasheet

Current PartRFQ

MAX604EPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3477MAX604EPA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX604EPA is determined by strict equivalence across the following critical parameters:

• Manufacturer & Base Product Number: Both the main part and substitute must originate from Analog Devices Inc./Maxim Integrated and share the MAX604 base product number to ensure identical die and functional characteristics.
• Output Configuration & Type: Positive adjustable (fixed) output topology must be maintained.
• Electrical Specifications: Input voltage range (11.5V max), output voltage range (1.25V to 11V), output current (500mA), dropout voltage (0.82V @ 400mA), and quiescent current (35 µA) must remain identical.
• Protection & Control Features: Over current, over temperature, and reverse polarity protection, plus enable control functionality, must be present.
• Package & Mounting: 8-PDIP through-hole package with identical pinout and mechanical dimensions (0.300", 7.62mm) is required for direct board-level compatibility.
• Operating Temperature Range: -40°C to 85°C specification must be maintained.

The primary distinction between the main part and its substitute lies in product status (obsolete versus active) and compliance certifications (RoHS and packaging format).

Parameter Comparison

Engineering Selection Recommendations

The MAX604EPA+ is a direct functional equivalent to the MAX604EPA. Both devices share identical electrical specifications, pinout, and package dimensions, enabling direct substitution at the board level.

The MAX604EPA+ offers two significant advantages over the obsolete MAX604EPA:

• Product Status: The MAX604EPA+ maintains active production status, ensuring long-term availability and supply chain continuity for new designs and ongoing system support.
• Compliance: The MAX604EPA+ is ROHS3 compliant, meeting current environmental and regulatory requirements for component procurement and system deployment in regulated markets.

For applications requiring RoHS non-compliant components or legacy inventory management, the MAX604EPA remains functionally identical. However, for new designs and systems requiring regulatory compliance, the MAX604EPA+ is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can MAX604EPA+ be used as a direct replacement for MAX604EPA in existing designs?

A: Yes. The MAX604EPA+ is electrically and mechanically identical to the MAX604EPA. Both devices feature the same 8-PDIP package, pinout, electrical specifications (500mA output, 11.5V maximum input, 0.82V dropout voltage), and protection features. Direct board-level substitution is possible without circuit modification.

Q: What is the difference between MAX604EPA and MAX604EPA+?

A: The primary differences are product status and compliance certification. The MAX604EPA is obsolete and RoHS non-compliant. The MAX604EPA+ is in active production and ROHS3 compliant. Packaging format also differs: MAX604EPA uses standard packaging while MAX604EPA+ is supplied in tube format. Electrical and functional specifications are identical.

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

A: No. Both the MAX604EPA and MAX604EPA+ use the 8-DIP (0.300", 7.62mm) through-hole package with identical pinout and mechanical dimensions. No PCB layout modifications are required for substitution.

Q: Why is the MAX604EPA listed as obsolete?

A: The MAX604EPA has been discontinued by Analog Devices Inc./Maxim Integrated. The MAX604EPA+ represents the current production equivalent and is recommended for all new designs and ongoing system support.

Q: Does the MAX604EPA+ meet current regulatory requirements?

A: Yes. The MAX604EPA+ is ROHS3 compliant and meets current environmental and regulatory standards for component procurement. The MAX604EPA is RoHS non-compliant and does not meet these requirements.

Q: What is the inventory status of these parts?

A: The MAX604EPA has 1088 pieces in stock (new original). The MAX604EPA+ has 3400 pieces in stock (new original, tube packaging). The MAX604EPA+ offers greater availability due to its active production status.