SC4525DSETRT Equivalent & Substitute Parts

Part Overview

The SC4525DSETRT is a buck switching regulator IC from Semtech Corporation designed for positive adjustable output applications. This Power Management (PMIC) device delivers 3A output current with an adjustable voltage range from 1V to 16.74V, operating from a 3V to 18V input supply. The component is housed in an 8-SOIC package with exposed pad and features a 350kHz switching frequency.

The SC4525DSETRT 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

SC4525DSETRT

Semtech CorporationIn Stock: 796SC4525DSETRT Datasheet

Current PartRFQ

SC4525FSETRT

Semtech CorporationIn Stock: 2384SC4525FSETRT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC4525DSETRT are identified based on strict electrical and mechanical parameter matching. The primary substitution criterion is functional equivalence across all critical parameters: identical buck regulator topology, matching output voltage adjustability range (1V to 16.74V), identical 3A output current capability, matching input voltage range (3V to 18V), identical switching frequency (350kHz), and compatible package form factor (8-SOIC with exposed pad).

The SC4525FSETRT qualifies as a parametric equivalent because it maintains all electrical specifications and mechanical compatibility with the original part. The only difference is packaging format (Cut Tape versus the original packaging specification), which does not affect electrical performance or board-level integration.

Parameter Comparison

Engineering Selection Recommendations

Both the SC4525DSETRT and SC4525FSETRT are classified as obsolete products. The SC4525FSETRT offers the additional advantage of RoHS compliance certification, which may be required for applications subject to environmental or regulatory standards. From an electrical and mechanical standpoint, the SC4525FSETRT provides complete functional substitution with no performance degradation.

Selection between these parts should be based on procurement availability, packaging requirements (Cut Tape format for SC4525FSETRT), and regulatory compliance needs. The SC4525FSETRT currently maintains higher inventory availability (2319 Pcs) compared to the SC4525DSETRT (765 Pcs).

Frequently Asked Questions (FAQ)

Q: Can SC4525FSETRT replace SC4525DSETRT in existing designs?

A: Yes. The SC4525FSETRT is a parametric equivalent with identical electrical specifications and package form factor. No circuit modifications are required.

Q: What is the difference between SC4525DSETRT and SC4525FSETRT?

A: The primary difference is packaging format. SC4525DSETRT uses standard packaging, while SC4525FSETRT is supplied in Cut Tape (CT) format. SC4525FSETRT also carries RoHS compliance certification. All electrical and thermal characteristics are identical.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate at identical switching frequency (350kHz), deliver the same 3A output current, support the same adjustable voltage range (1V to 16.74V), and operate across the same temperature range (-40°C to 105°C).

Q: Does the 8-SOIC package with exposed pad differ between these parts?

A: No. Both parts use the identical 8-SOIC (0.154", 3.90mm Width) package with exposed pad. PCB footprints and thermal management characteristics are identical.

Q: What does RoHS compliance mean for SC4525FSETRT?

A: RoHS compliance indicates the part meets Restriction of Hazardous Substances standards, restricting lead and other hazardous materials. This certification is relevant for applications subject to environmental regulations or customer requirements.

Q: Can I use these parts interchangeably in production?

A: Yes, provided packaging format (Cut Tape) and any regulatory compliance requirements (RoHS) align with your procurement and application specifications.