NCP4353BSNT1G

Power Supply Controllers, Monitors Overview

The NCP4353BSNT1G is a secondary-side controller for Switch-Mode Power Supplies (SMPS) designed to minimize standby power consumption. It operates in TSSOP-6 surface-mount packaging and includes an integrated 1.25V voltage reference. The device supports adjustable minimum output voltage settings and features current and power monitoring capabilities, making it suitable for low-power adapter applications requiring efficient off-mode control.

Power Supply Controllers, Monitors Feature Summary

• Secondary-side SMPS controller optimized for low standby power adapters
• Integrated adjustable minimum output voltage capability
• Built-in current and power monitoring functions

Power Supply Controllers, Monitors Applications

• Low standby power AC/DC adapters
• Secondary-side control in switch-mode power supplies
• Current and power monitoring in offline converters

Power Supply Controllers, Monitors Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm the specific suffix 'T1G' corresponds to the required tape-and-reel packaging configuration. Ensure compliance with RoHS directives as indicated by the manufacturer's environmental declarations. Cross-reference datasheet revisions to confirm pinout and electrical characteristics match the design requirements before integration.

Power Supply Controllers, Monitors Selection Notes

Select this component for designs prioritizing ultra-low standby power in secondary-side regulated topologies. The integrated voltage reference simplifies feedback loop compensation. Verify that the TSSOP-6 package fits the PCB footprint constraints. Consider the adjustable Vmin feature if dynamic load response optimization is required for the target application efficiency profile.

Power Supply Controllers, Monitors Part Context

This part belongs to the NCP4353 family of secondary-side controllers. It is specifically engineered for offline power supplies where energy conservation in no-load conditions is critical. The device complements primary-side controllers by providing precise regulation and protection mechanisms on the secondary side of the isolation barrier.

Power Supply Controllers, Monitors Replacement Considerations

The product lifecycle status is listed as Obsolete. Engineers must identify qualified alternative components from current onsemi portfolios or other manufacturers that offer equivalent secondary-side control functionality, pin compatibility, and performance specifications.