SC729CSTRT Equivalent & Substitute Parts

Part Overview

The SC729CSTRT is a Power Management Integrated Circuit (PMIC) manufactured by Semtech Corporation, functioning as a Power Switch/Driver with 1:1 N-Channel configuration rated for 2A output current in a 4-CSP (0.76x0.76) package. The device is classified as Obsolete, which necessitates identification of equivalent substitute components for ongoing production and maintenance applications. Finding suitable alternatives ensures design continuity and supply chain reliability for systems currently utilizing this component.

Substiute Parts

SC729CSTRT

Semtech CorporationIn Stock: 991SC729CSTRT Datasheet

Current PartRFQ

SC725CSTRT

Semtech CorporationIn Stock: 9062SC725CSTRT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC729CSTRT is determined by strict equivalence across the following critical parameters:

• Output Configuration & Type: High Side N-Channel output with 1:1 input-to-output ratio
• Electrical Performance: 2A maximum output current and 24mOhm typical on-resistance (Rds On)
• Voltage Rating: Load voltage range of 1.1V ~ 3.6V
• Package Compatibility: 4-CSP (0.76x0.76) form factor with 4-WFBGA/CSPBGA case designation
• Environmental & Compliance: Operating temperature range -40°C ~ 85°C, RoHS Compliant, MSL Level 1
• Manufacturer Consistency: Semtech Corporation as original manufacturer

The SC725CSTRT meets all these criteria and is classified as a parametric equivalent. Both devices share identical electrical specifications, package dimensions, and compliance certifications, making them functionally interchangeable at the circuit level.

Parameter Comparison

Engineering Selection Recommendations

The SC725CSTRT serves as a direct parametric equivalent to the SC729CSTRT. Both components are manufactured by Semtech Corporation and maintain identical electrical specifications, package geometry, and compliance certifications. The SC725CSTRT is currently available with higher inventory levels (9035 Pcs) compared to the SC729CSTRT (913 Pcs), providing improved supply chain accessibility.

Both parts carry RoHS Compliant status and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols. The SC725CSTRT is designated as "Not For New Designs," indicating it remains available for replacement and maintenance applications but is not recommended for new product development initiatives.

For applications requiring the SC729CSTRT, the SC725CSTRT can be substituted without circuit redesign, provided the packaging format (Tape & Reel for SC725CSTRT versus standard packaging for SC729CSTRT) aligns with procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the SC725CSTRT replace the SC729CSTRT in existing designs?

A: Yes. The SC725CSTRT is a parametric equivalent with identical electrical specifications, output configuration, voltage ratings, current capacity, on-resistance, operating temperature range, and package dimensions. Direct substitution is supported at the circuit level.

Q: What is the difference between these two parts?

A: The primary differences are product status and packaging format. The SC729CSTRT is Obsolete, while the SC725CSTRT is Not For New Designs. The SC725CSTRT is supplied in Tape & Reel format, whereas the SC729CSTRT uses standard packaging. Electrical performance and package geometry are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are RoHS Compliant, carry MSL Level 1 rating, and share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Q: What is the 4-CSP (0.76x0.76) package specification?

A: The 4-CSP (0.76x0.76) is a Chip Scale Package with four connection points in a 0.76mm × 0.76mm footprint. Both the SC729CSTRT and SC725CSTRT use this identical package designation, classified as 4-WFBGA or CSPBGA.

Q: Which part should be selected for new production?

A: Neither part is recommended for new designs. The SC729CSTRT is Obsolete, and the SC725CSTRT is Not For New Designs. For new applications, consult Semtech Corporation for current-generation power switch alternatives with equivalent specifications.

Q: Is inventory availability a factor in part selection?

A: Yes. The SC725CSTRT has significantly higher inventory (9035 Pcs) compared to the SC729CSTRT (913 Pcs), making it the preferred choice for replacement and maintenance applications where supply continuity is critical.