NCP10970B1DR2G

Overview

The NCP10970B1DR2G is a high-voltage switcher featuring a linearly regulated output, designed for AC/DC conversion applications. It operates as a buck converter with an input voltage range of 85 V to 265 VAC. The device integrates a dual-output architecture, providing a primary switched output and a dedicated 5.0V LDO output (VLDOOUT). Packaged in a 16-SOIC format with 15 leads, it supports surface-mount installation. This component serves as a specialized power management IC for lighting and other AC/DC converter systems requiring integrated regulation.

Feature Summary

• Integrates a high-voltage buck switcher with a built-in linearly regulated output for simplified design
• Provides dual output capability with a dedicated 5.0V LDO supply alongside the main switched rail
• Operates directly from universal AC input voltages without external rectification stages

Applications

• LED lighting drivers
• AC/DC converters
• Specialized power management units

Procurement Notes

Verify current lifecycle status before procurement, as this specific part number may be marked as Not Recommended for New Designs (NRND) by the manufacturer. Confirm package details match the 16-SOIC (15 leads) specification. Ensure compatibility with existing board layouts due to potential obsolescence. Cross-reference official datasheets for any updated pinout or thermal requirements prior to finalizing orders.

Selection Notes

Select this component when a combined high-voltage switching solution and low-dropout regulator are required in a single package. It is suitable for designs needing a stable auxiliary voltage derived from the main AC input. Consider the NRND status if designing new products; alternative newer generations within the NCP1097x family should be evaluated for long-term supply stability and feature enhancements.

Part Context

This part belongs to the NCP1097x series of high-voltage switchers from onsemi. These devices are engineered for cost-effective AC/DC conversion, particularly in lighting applications. The B1 suffix typically denotes specific internal configuration or tolerance variations within the series. The DR2G suffix indicates tape-and-reel packaging with lead-free composition and RoHS compliance.

Replacement Considerations

Check for direct substitutes within the NCP1097x family, such as the NCP10970A1DR2G, which shares similar functional descriptions. Verify pin compatibility and electrical specifications against the target application requirements before substitution.