EL7583IRZ Equivalent & Substitute Parts

Part Overview

The EL7583IRZ is a TFT LCD voltage regulator IC manufactured by Renesas Electronics Corporation, designed for power management applications requiring dual output conversion. This device accepts input voltages between 2.7V and 14V and provides regulated outputs in the 5V to 17V range, making it suitable for TFT LCD display systems. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and component procurement.

Substiute Parts

EL7583IRZ

Renesas Electronics CorporationIn Stock: 976EL7583IRZ Datasheet

Current PartRFQ

EL7583IREZ

Renesas Electronics CorporationIn Stock: 1341EL7583IREZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The EL7583IREZ qualifies as a direct substitute for the EL7583IRZ based on the following criteria:

Matching Electrical Parameters:

• Input voltage range: 2.7V ~ 14V (identical)
• Output voltage range: 5V ~ 17V (identical)
• Number of outputs: 2 (identical)
• Operating temperature range: -40°C ~ 85°C (identical)

Matching Mechanical Parameters:

• Mounting type: Surface Mount (identical)
• Package family: 20-TSSOP (identical footprint width: 0.173", 4.40mm)
• Base product number: EL7583 (same device family)

Matching Compliance & Environmental Parameters:

• RoHS3 Compliant (identical)
• MSL Rating: 3 (168 Hours) (identical)
• REACH Status: REACH Unaffected (identical)
• ECCN: EAR99 (identical)

The primary distinction is the package designation: EL7583IRZ uses standard 20-TSSOP, while EL7583IREZ uses 20-HTSSOP (with exposed pad). Both packages maintain identical footprint dimensions and pin configurations, allowing direct PCB-level substitution.

Parameter Comparison

Engineering Selection Recommendations

The EL7583IREZ is a direct functional and mechanical equivalent of the EL7583IRZ. Selection between these parts should be based on the following factors:

Package Consideration: The EL7583IREZ includes an exposed pad in the 20-HTSSOP package, which may provide improved thermal performance compared to the standard 20-TSSOP variant. If thermal management is a design requirement, the exposed pad variant is preferable.

Compliance Alignment: Both parts maintain identical RoHS3 compliance, MSL ratings, and regulatory status (REACH Unaffected, ECCN EAR99), ensuring no compliance-related barriers to substitution.

Obsolescence Status: Both parts are classified as obsolete. Component selection should prioritize availability and inventory status. The EL7583IREZ currently shows higher inventory availability (1314 Pcs) compared to the EL7583IRZ (916 Pcs), making it the preferred choice for new procurement.

PCB Layout Compatibility: The identical footprint dimensions (0.173", 4.40mm width) ensure direct PCB-level compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the EL7583IREZ be used as a direct replacement for the EL7583IRZ on existing PCBs?

A: Yes. Both parts share identical electrical specifications (input/output voltage ranges, number of outputs, operating temperature), identical mounting type (Surface Mount), and compatible package footprints (20-TSSOP vs. 20-HTSSOP with identical dimensions). No PCB modifications are required.

Q: What is the difference between the 20-TSSOP and 20-HTSSOP packages?

A: The 20-HTSSOP variant includes an exposed pad, which is typically used for improved thermal dissipation. Both packages maintain the same footprint dimensions (0.173", 4.40mm width) and pin configuration, ensuring mechanical compatibility.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both the EL7583IRZ and EL7583IREZ are ROHS3 compliant, carry identical MSL ratings (3, 168 Hours), and share the same regulatory status (REACH Unaffected, ECCN EAR99).

Q: Why is the EL7583IREZ recommended over the EL7583IRZ?

A: The EL7583IREZ is recommended based on current inventory availability (1314 Pcs vs. 916 Pcs) and the potential thermal benefits of the exposed pad package. Both parts are functionally equivalent.

Q: Are there any application limitations when substituting between these parts?

A: No application limitations exist. Both parts are designed for identical TFT LCD converter applications and support the same input/output voltage ranges and operating temperature specifications.