CS5172GDR8G Equivalent & Substitute Parts

Part Overview

The CS5172GDR8G is a multi-topology switching regulator IC manufactured by onsemi, designed for buck, boost, flyback, forward converter, and SEPIC applications. It delivers 1.5A output current with adjustable positive or negative output voltage configuration across a 2.7V to 30V input range. The device operates at 280kHz switching frequency in an 8-SOIC surface mount package.

This part is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support long-term product availability for applications currently utilizing this regulator.

Substiute Parts

CS5172GDR8G

onsemiIn Stock: 911CS5172GDR8G Datasheet

Current PartRFQ

CS5172EDR8G

onsemiIn Stock: 2495CS5172EDR8G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS5172GDR8G is determined by strict equivalence across the following electrical and mechanical parameters:

• Input voltage range: 2.7V to 30V
• Output voltage configuration: Positive or Negative Adjustable
• Output current capability: 1.5A (Switch)
• Switching frequency: 280kHz
• Topology support: Buck, Boost, Flyback, Forward Converter, SEPIC
• Package type: 8-SOIC (0.154", 3.90mm Width)
• Mounting: Surface Mount

The CS5172EDR8G qualifies as a direct substitute based on identical electrical specifications and package compatibility. Differences in operating temperature range and packaging format (Cut Tape vs. standard packaging) do not affect functional equivalence for circuit design purposes.

Parameter Comparison

Engineering Selection Recommendations

The CS5172EDR8G is a direct functional equivalent to the CS5172GDR8G. Both devices share identical electrical specifications, switching characteristics, and package geometry. Selection between these parts should be based on the following factors:

Operating Temperature Requirements: The CS5172EDR8G supports an extended operating temperature range of -40°C to 125°C, compared to the CS5172GDR8G range of 0°C to 125°C. Applications requiring operation below 0°C should specify the CS5172EDR8G.

Compliance and Regulatory Status: The CS5172EDR8G carries RoHS3 compliance certification, whereas the CS5172GDR8G compliance status is not specified. For applications subject to RoHS requirements, the CS5172EDR8G is the appropriate selection.

Packaging Format: The CS5172EDR8G is supplied in Cut Tape (CT) format. Verify that your procurement and assembly processes accommodate this packaging format.

Both parts are classified as obsolete. Inventory availability should be confirmed with the supplier before finalizing design decisions.

Frequently Asked Questions (FAQ)

Q: Can the CS5172EDR8G replace the CS5172GDR8G in existing designs?

A: Yes. The CS5172EDR8G is electrically and mechanically equivalent. Both devices support identical topologies, voltage ranges, current ratings, and switching frequency. PCB layout and component selection remain unchanged.

Q: What is the difference between these two part numbers?

A: The primary differences are operating temperature range (CS5172EDR8G: -40°C to 125°C vs. CS5172GDR8G: 0°C to 125°C) and RoHS3 compliance certification (CS5172EDR8G only). Electrical performance and package dimensions are identical.

Q: Are there any package compatibility issues?

A: Both parts use the 8-SOIC (0.154", 3.90mm Width) package. The CS5172EDR8G is supplied in Cut Tape format. Verify that your assembly process supports this packaging option.

Q: Why are both parts listed as obsolete?

A: Both the CS5172GDR8G and CS5172EDR8G are obsolete products. For new designs, evaluate current-generation switching regulator alternatives from onsemi or other manufacturers that meet your application requirements.

Q: Which part should I select for my application?

A: If your application requires operation below 0°C, select the CS5172EDR8G. If RoHS3 compliance is mandatory, select the CS5172EDR8G. For applications within the 0°C to 125°C range without RoHS requirements, either part is functionally suitable based on availability.