SC704CSTRT Equivalent & Substitute Parts

Part Overview

The SC704CSTRT 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 is classified as Obsolete, making identification of suitable substitute parts essential for ongoing system support and new design considerations. The SC704CSTRT operates as a high-side N-channel switch with 500mA maximum output current in a compact 4-CSP (0.76x0.76mm) package, designed for low-voltage load switching applications.

Substiute Parts

SC704CSTRT

Semtech CorporationIn Stock: 4083SC704CSTRT Datasheet

Current PartRFQ

SC725CSTRT

Semtech CorporationIn Stock: 9062SC725CSTRT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC704CSTRT is determined by strict alignment of the following electrical and mechanical parameters:

• Output Configuration: High Side N-Channel
• Voltage Range: 1.1V ~ 3.6V load voltage compatibility
• Package Type: 4-CSP (0.76x0.76mm) form factor
• Mounting: Surface Mount
• Interface: On/Off control
• Ratio: 1:1 Input:Output

The SC725CSTRT qualifies as a manufacturer-recommended substitute based on identical output configuration, voltage range, package dimensions, and mounting type. The SC725CSTRT maintains the same 4-CSP package footprint and electrical interface, enabling direct substitution in existing PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

The SC725CSTRT is the manufacturer-recommended substitute for the SC704CSTRT. Both components maintain identical electrical interfaces, voltage specifications, and physical package dimensions, ensuring PCB-level compatibility without layout modifications.

The SC725CSTRT provides enhanced performance characteristics: maximum output current increases from 500mA to 2A, and on-resistance decreases from 64mOhm to 24mOhm. These improvements result in reduced power dissipation and expanded current handling capability for applications requiring higher load switching capacity.

Both parts carry RoHS Compliant certification and MSL Level 1 (Unlimited) moisture sensitivity rating, meeting equivalent environmental and regulatory requirements. The SC704CSTRT's Obsolete status and the SC725CSTRT's Not For New Designs status indicate both components are legacy products; however, the SC725CSTRT remains the supported alternative for existing system maintenance and limited production runs.

Frequently Asked Questions (FAQ)

Q: Can the SC725CSTRT directly replace the SC704CSTRT on existing PCBs?

A: Yes. Both components use identical 4-CSP (0.76x0.76mm) package dimensions and surface mount configuration. No PCB layout modifications are required for physical substitution.

Q: What are the key electrical differences between these parts?

A: The SC725CSTRT provides higher current capacity (2A vs. 500mA) and lower on-resistance (24mOhm vs. 64mOhm). Both maintain the same 1.1V ~ 3.6V load voltage range and -40°C ~ 85°C operating temperature specification.

Q: Are there any compliance or certification differences?

A: Both parts are RoHS Compliant with MSL Level 1 (Unlimited) rating. Regulatory compliance is equivalent between the two components.

Q: Why is the SC704CSTRT listed as Obsolete?

A: The SC704CSTRT has reached end-of-life status. The SC725CSTRT is the manufacturer-designated alternative, though it is classified as Not For New Designs, indicating it is also a legacy product line.

Q: What additional features does the SC725CSTRT include?

A: The SC725CSTRT adds Load Discharge functionality in addition to the Slew Rate Controlled feature present in both parts.