SC4524DSETRT Equivalent & Substitute Parts

Part Overview

The SC4524DSETRT is a buck switching regulator IC from Semtech Corporation designed for positive adjustable output applications. This Power Management (PMIC) device delivers 2A output current with an adjustable output voltage range from 1V to 17.28V, operating from a 3V to 18V input supply. The device is housed in an 8-SOIC package with exposed pad and features a switching frequency range of 200kHz to 2MHz.

The SC4524DSETRT is classified as obsolete. Identifying equivalent substitute parts is essential for design continuity, procurement flexibility, and long-term product support when original inventory becomes unavailable.

Substiute Parts

SC4524DSETRT

Semtech CorporationIn Stock: 50054SC4524DSETRT Datasheet

Current PartRFQ

SC4524FSETRT

Semtech CorporationIn Stock: 4646SC4524FSETRT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC4524DSETRT are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Function: Step-Down (Buck) topology
• Output Configuration: Positive adjustable output
• Number of Outputs: Single output
• Voltage - Input Range: 3V to 18V
• Voltage - Output Range: 1V to 17.28V
• Current - Output: 2A
• Frequency - Switching: 200kHz to 2MHz
• Synchronous Rectifier: No
• Operating Temperature: -40°C to 105°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width) Exposed Pad
• Mounting Type: Surface Mount

The SC4524FSETRT meets all electrical and mechanical parameters specified for the SC4524DSETRT, differing only in packaging format (Cut Tape versus standard packaging) and compliance certifications, making it a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the SC4524DSETRT and SC4524FSETRT are obsolete products from Semtech Corporation. Selection between these parts should be based on packaging and compliance requirements:

The SC4524DSETRT is supplied in standard packaging format with 50,030 pieces currently in stock inventory. The SC4524FSETRT is supplied in Cut Tape (CT) format with 4,555 pieces in stock inventory and carries RoHS Compliant certification.

For applications requiring RoHS compliance documentation, the SC4524FSETRT is the appropriate selection. For applications with standard packaging requirements and higher inventory availability, the SC4524DSETRT remains suitable. Both parts share identical electrical specifications and thermal operating ranges, ensuring functional interchangeability within the specified parameter envelope.

Frequently Asked Questions (FAQ)

Q: Can SC4524FSETRT replace SC4524DSETRT in existing designs?

A: Yes. The SC4524FSETRT is a direct parametric equivalent. All electrical specifications, output voltage range (1V to 17.28V), output current (2A), switching frequency (200kHz to 2MHz), operating temperature range (-40°C to 105°C), and package dimensions (8-SOIC with exposed pad) are identical. The primary difference is packaging format (Cut Tape versus standard) and RoHS compliance certification on the SC4524FSETRT.

Q: What is the difference between SC4524DSETRT and SC4524FSETRT packaging?

A: SC4524DSETRT is supplied in standard packaging format. SC4524FSETRT is supplied in Cut Tape (CT) format. Both use the same 8-SOIC (0.154", 3.90mm Width) Exposed Pad package case. The packaging format difference affects handling, storage, and automated assembly processes but does not impact electrical performance or pin configuration.

Q: Are there any compliance differences between these parts?

A: SC4524FSETRT carries RoHS Compliant certification. SC4524DSETRT does not list RoHS status in the provided specifications. Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications and Moisture Sensitivity Level 1 (Unlimited).

Q: Why are both parts classified as obsolete?

A: Both SC4524DSETRT and SC4524FSETRT are obsolete products. Despite obsolete status, inventory remains available from current stock. For new designs, evaluation of current-generation buck regulator alternatives from Semtech Corporation or other manufacturers may be warranted for long-term product support and availability assurance.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by matching: buck topology, positive adjustable output configuration, 1V to 17.28V output voltage range, 2A output current, 3V to 18V input voltage range, 200kHz to 2MHz switching frequency, 8-SOIC package with exposed pad, and -40°C to 105°C operating temperature range. Any deviation from these parameters requires re-evaluation of circuit design compatibility.