EL7566AIREZ Equivalent & Substitute Parts

Part Overview

The EL7566AIREZ is a buck switching regulator IC manufactured by Renesas Electronics Corporation, designed for positive adjustable output applications. This power management IC delivers 6A output current with adjustable voltage regulation from 0.8V to 6V, operating from a 3V to 6V input supply. The device is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

EL7566AIREZ

Renesas Electronics CorporationIn Stock: 2993EL7566AIREZ Datasheet

Current PartRFQ

EL7566DREZ

Renesas Electronics CorporationIn Stock: 3589EL7566DREZ Datasheet

DirectRFQ

EL7554IREZ

Renesas Electronics CorporationIn Stock: 6245EL7554IREZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EL7566AIREZ are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Input voltage range (3V to 6V)
• Output voltage adjustability (0.8V to 6V minimum)
• Package type (28-TSSOP with exposed pad)
• Synchronous rectifier topology
• Switching frequency range (200kHz to 1MHz)
• RoHS3 compliance and MSL rating

Two substitute parts are identified:

Direct Substitute (EL7566DREZ): Identical electrical specifications with the same 6A output current rating. Difference exists only in operating temperature range and packaging format (Tube vs. standard packaging).

Similar Substitute (EL7554IREZ): Shares identical input/output voltage ranges, package type, and topology. The primary difference is reduced output current rating (4A vs. 6A), making this suitable only for applications with lower current requirements.

Parameter Comparison

Engineering Selection Recommendations

EL7566DREZ is the direct equivalent for the EL7566AIREZ. Both devices maintain identical electrical performance specifications and package configuration. The operating temperature range difference (0°C to 85°C vs. -40°C to 85°C) must be evaluated against application requirements. Both parts are obsolete and ROHS3 compliant with equivalent MSL ratings.

EL7554IREZ is a compatible substitute only for applications where the maximum output current requirement does not exceed 4A. This part maintains all other critical parameters including input/output voltage ranges, package type, switching frequency, and temperature operating range (-40°C to 85°C). Selection of this part requires confirmation that the 4A current limit is sufficient for the intended application.

Frequently Asked Questions (FAQ)

Q: Can EL7566DREZ directly replace EL7566AIREZ in all applications?

A: EL7566DREZ is electrically equivalent with identical 6A output current and voltage specifications. The operating temperature range differs (0°C to 85°C vs. -40°C to 85°C). Direct replacement is valid only if the application does not require operation below 0°C.

Q: Is EL7554IREZ suitable as a substitute for EL7566AIREZ?

A: EL7554IREZ shares identical input/output voltage ranges, package type, and topology. The 4A output current rating is lower than the 6A specification of EL7566AIREZ. This part is suitable only for applications where maximum output current does not exceed 4A.

Q: Are all three parts pin-compatible?

A: All three parts use the 28-TSSOP package with exposed pad (0.173", 4.40mm Width). Pin compatibility must be verified against specific application schematics and PCB layouts.

Q: What is the significance of the operating temperature range difference?

A: EL7566AIREZ operates from -40°C to 85°C, while EL7566DREZ operates from 0°C to 85°C. Applications requiring operation in environments below 0°C must use EL7566AIREZ or EL7554IREZ.

Q: Are all parts RoHS3 compliant?

A: Yes, all three parts (EL7566AIREZ, EL7566DREZ, and EL7554IREZ) are ROHS3 compliant with MSL rating of 3 (168 Hours).

Q: What is the base product number relationship?

A: EL7566AIREZ and EL7566DREZ share the base product number EL7566, indicating they are variants of the same product line. EL7554IREZ has a different base product number (EL7554), indicating a related but distinct product.