MAX4473ESA Equivalent & Substitute Parts

Part Overview

The MAX4473ESA is an RF Power Controller IC for GSM applications in 8-SOIC packaging, manufactured by Analog Devices Inc./Maxim Integrated. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part is RoHS non-compliant and carries unlimited moisture sensitivity rating (MSL 1).

Key Parameters

Parameter	MAX4473ESA
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	RF Power Controller IC
Package / Case	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS Code	8542.33.0001

Substitute Part Grouping Explanation

Substitute parts for the MAX4473ESA are selected based on the following criteria:

Package Compatibility: All substitute parts maintain the 8-SOIC (0.154", 3.90mm Width) form factor, ensuring direct mechanical and electrical pin compatibility.

Functional Category: Substitute parts are general-purpose operational amplifiers with rail-to-rail output capability, matching the functional requirements of the original RF power control application.

Electrical Parameters: Substitutes are grouped by performance characteristics including supply voltage range (2.7V to 6V minimum/maximum), output drive capability, and operating temperature ranges.

Compliance Status: Active product status substitutes are prioritized over obsolete alternatives. RoHS3 compliance is available across all recommended substitutes, providing regulatory advantage over the non-compliant original part.

Moisture Sensitivity: All substitutes maintain MSL 1 (Unlimited) rating, ensuring equivalent handling and storage requirements.

Parameter Comparison

Part Number	Manufacturer	Product Status	Package	Amplifier Type	Output Type	Slew Rate (V/µs)	Gain Bandwidth (MHz)	Supply Voltage Min (V)	Supply Voltage Max (V)	Operating Temp (°C)	RoHS Status	MSL
MAX4473ESA	Analog Devices/Maxim	Obsolete	8-SOIC	RF Power Controller	—	—	—	—	—	—	Non-compliant	1
MCP601-I/SN	Microchip Technology	Active	8-SOIC	General Purpose	Rail-to-Rail	2.3	2.8	2.7	6	-40 to 85	ROHS3 Compliant	1
MCP603-E/SN	Microchip Technology	Active	8-SOIC	General Purpose	Rail-to-Rail	2.3	2.8	2.7	6	-40 to 125	ROHS3 Compliant	1
MCP603-I/SN	Microchip Technology	Active	8-SOIC	General Purpose	Rail-to-Rail	2.3	2.8	2.7	6	-40 to 85	ROHS3 Compliant	1
OPA379AID	Texas Instruments	Active	8-SOIC	General Purpose	Rail-to-Rail	0.03	0.09	1.8	5.5	-40 to 125	ROHS3 Compliant	2
TLV2450CD	Texas Instruments	Obsolete	8-SOIC	General Purpose	Rail-to-Rail	0.11	0.22	2.7	6	0 to 70	ROHS3 Compliant	1
TLV2450ID	Texas Instruments	Active	8-SOIC	General Purpose	Rail-to-Rail	0.11	0.22	2.7	6	-40 to 125	ROHS3 Compliant	1
TLV2461CD	Texas Instruments	Active	8-SOIC	General Purpose	Rail-to-Rail	1.6	6.4	2.7	6	0 to 70	ROHS3 Compliant	1
TLV2461CDR	Texas Instruments	Active	8-SOIC	General Purpose	Rail-to-Rail	1.6	6.4	2.7	6	0 to 70	ROHS3 Compliant	1
TLV2461ID	Texas Instruments	Obsolete	8-SOIC	General Purpose	Rail-to-Rail	1.6	6.4	2.7	6	-40 to 125	ROHS3 Compliant	1
TLV2470CDR	Texas Instruments	Active	8-SOIC	General Purpose	Rail-to-Rail	1.5	2.8	2.7	6	0 to 70	ROHS3 Compliant	1

Engineering Selection Recommendations

For New Designs: Select from active product status parts with ROHS3 compliance. MCP603-E/SN and MCP603-I/SN offer extended operating temperature range (-40°C to 125°C) with active status and full RoHS3 compliance. TLV2461CDR provides higher slew rate (1.6V/µs) and gain bandwidth (6.4 MHz) in tape & reel packaging for high-volume production.

For Extended Temperature Requirements: MCP603-E/SN, TLV2450ID, and TLV2461ID support -40°C to 125°C operating range. Among these, MCP603-E/SN and TLV2450ID are active products with current manufacturing support.

For Low-Power Applications: OPA379AID offers the lowest supply current (2.9µA) and operates from 1.8V minimum supply voltage, though it carries MSL 2 moisture sensitivity rating and reduced slew rate performance.

For High-Speed Applications: TLV2461CDR and TLV2461CD deliver the highest slew rate (1.6V/µs) and gain bandwidth product (6.4 MHz), suitable for applications requiring faster signal response.

Packaging Considerations: TLV2461CDR is supplied in tape & reel format for automated assembly. TLV2461CD and TLV2450ID are supplied in tube packaging. Select based on production volume and assembly equipment compatibility.

Frequently Asked Questions (FAQ)

Q: Can MAX4473ESA be directly replaced with any of these substitutes?

A: All listed substitutes share the 8-SOIC package form factor and pin compatibility. However, electrical performance characteristics vary significantly. Circuit validation is required to confirm functional equivalence for your specific application.

Q: Why are some substitute parts marked as obsolete?

A: TLV2450CD and TLV2461ID are obsolete but remain available in inventory. For new production, prioritize active status parts (MCP603-E/SN, TLV2450ID, TLV2461CDR) to ensure long-term supply continuity.

Q: What is the difference between MCP603-I/SN and MCP603-E/SN?

A: Both parts are functionally identical with identical electrical specifications. The primary difference is operating temperature range: MCP603-I/SN operates -40°C to 85°C, while MCP603-E/SN extends to 125°C maximum. Select based on your application's thermal requirements.

Q: Does OPA379AID require different handling procedures?

A: OPA379AID carries MSL 2 (1 Year) moisture sensitivity rating, compared to MSL 1 (Unlimited) for all other substitutes. This requires stricter moisture control during storage and handling. Standard MSL 1 parts do not have this constraint.

Q: Which substitute offers the best performance for RF power control applications?

A: TLV2461CDR and TLV2461CD provide the highest slew rate (1.6V/µs) and gain bandwidth (6.4 MHz), making them suitable for RF control signal processing. TLV2461CDR in tape & reel format is recommended for production volumes.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All substitute parts carry ROHS3 Compliant status, providing regulatory advantage over the non-compliant MAX4473ESA. This enables compliance with current environmental and procurement standards.

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