SC705CSTRT Equivalent & Substitute Parts

Part Overview

The SC705CSTRT is a Power Management Integrated Circuit (PMIC) manufactured by Semtech Corporation, functioning as a Power Switch/Driver with 1:1 N-Channel configuration. This component operates as a high-side N-channel switch rated for 500mA maximum output current in a compact 4-CSP (0.76x0.76mm) package. The part is classified as Obsolete, necessitating identification of equivalent substitute components for ongoing production and maintenance applications. Substitute parts must maintain functional compatibility across electrical specifications, mechanical packaging, and thermal operating ranges.

Substiute Parts

SC705CSTRT

Semtech CorporationIn Stock: 859SC705CSTRT Datasheet

Current PartRFQ

SC725CSTRT

Semtech CorporationIn Stock: 9062SC725CSTRT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC705CSTRT is determined by strict equivalence across the following critical parameters:

• Electrical Configuration: Output type (N-Channel), output configuration (High Side), and input:output ratio (1:1) must remain identical
• Load Voltage Range: 1.1V ~ 3.6V compatibility is mandatory
• Package Compatibility: 4-CSP (0.76x0.76mm) form factor with 4-WFBGA/CSPBGA case designation
• Thermal Range: Operating temperature range of -40°C ~ 85°C (TA)
• Compliance: RoHS Compliant status and MSL 1 rating
• Interface Type: On/Off control interface

The SC725CSTRT qualifies as a manufacturer-recommended substitute. While it maintains identical electrical configuration, load voltage range, package dimensions, thermal operating range, and compliance certifications, it provides enhanced current-handling capability (2A vs. 500mA) and improved on-resistance characteristics (24mOhm vs. 64mOhm). These improvements ensure backward compatibility for applications originally designed for the SC705CSTRT.

Parameter Comparison

Engineering Selection Recommendations

The SC725CSTRT is the manufacturer-recommended substitute for the obsolete SC705CSTRT. Both components maintain identical electrical configuration, load voltage specifications, package form factor, and thermal operating characteristics. The SC725CSTRT provides superior performance metrics with 4x higher maximum output current (2A vs. 500mA) and 62.5% lower on-resistance (24mOhm vs. 64mOhm), ensuring full backward compatibility with existing SC705CSTRT designs while offering enhanced capability margins.

Both parts maintain RoHS Compliance and MSL 1 (Unlimited) moisture sensitivity ratings, confirming equivalent environmental and regulatory compliance. The SC725CSTRT's "Not For New Designs" status reflects its position as a transitional component; however, it remains suitable for production applications requiring SC705CSTRT replacement.

Frequently Asked Questions (FAQ)

Q: Can SC725CSTRT directly replace SC705CSTRT in existing designs?

A: Yes. The SC725CSTRT maintains identical electrical configuration (1:1 N-Channel High Side), load voltage range (1.1V ~ 3.6V), package dimensions (4-CSP 0.76x0.76mm), and thermal operating range (-40°C ~ 85°C). The enhanced current rating (2A vs. 500mA) and lower on-resistance (24mOhm vs. 64mOhm) provide performance improvement without functional incompatibility.

Q: Are there packaging differences between SC705CSTRT and SC725CSTRT?

A: No. Both components use identical 4-CSP (0.76x0.76mm) packaging with 4-WFBGA/CSPBGA case designation. Surface mount assembly processes and PCB footprints remain unchanged.

Q: What is the significance of the product status difference?

A: SC705CSTRT is classified as Obsolete, indicating discontinued manufacturing and unavailable inventory. SC725CSTRT is classified as "Not For New Designs," indicating limited availability and manufacturer recommendation against new product development, but remains suitable for production replacement applications.

Q: Are compliance certifications equivalent between these parts?

A: Yes. Both SC705CSTRT and SC725CSTRT maintain RoHS Compliance status and MSL 1 (Unlimited) moisture sensitivity ratings, confirming equivalent environmental and regulatory compliance for manufacturing and deployment.

Q: What thermal characteristics apply to both parts?

A: Both components operate across the identical temperature range of -40°C ~ 85°C (TA), ensuring equivalent thermal performance and reliability across standard industrial and commercial operating environments.