NCP1012ST100T3G

AC DC Converters, Offline Switchers Overview

The NCP1012ST100T3G is a monolithic switcher integrating a fixed-frequency current-mode controller and a 700 V MOSFET. It operates at a switching frequency of 100 kHz with a maximum duty cycle of 67%. The device features an internal soft-start time of 1.0 ms and supports SMD/SMT installation in a SOT-223 (TO-261) package. It functions within a supply voltage range of 8.5 V to 10 V and withstands operating temperatures from -40 °C to +150 °C junction temperature.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage 700 V MOSFET with low on-resistance for efficient power conversion.
• Utilizes Dynamic Self-Supply technology, eliminating the requirement for an auxiliary winding.
• Employs skip-cycle operation at low peak currents to ensure quiet performance without acoustic noise.
• Includes built-in protection mechanisms such as latched overvoltage protection and auto-recovery short-circuit protection.

AC DC Converters, Offline Switchers Applications

• Low standby power offline SMPS designs
• AC/DC converters for consumer electronics
• Adapters and chargers requiring compact form factors

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized channels due to availability constraints. Confirm RoHS compliance status and check for End-of-Life notifications or Product Change Notices affecting manufacturing. Ensure packaging specifications match design requirements before finalizing orders.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications prioritizing low component count and reduced standby power consumption. The integrated MOSFET simplifies thermal management compared to discrete solutions. Verify that the 100 kHz frequency aligns with EMI filtering requirements and that the SOT-223 package fits the PCB layout constraints.

AC DC Converters, Offline Switchers Part Context

This part belongs to the NCP101X series of self-supplied monolithic switchers designed for rugged, low-cost power supplies. It combines control logic and power switching in a single package to minimize external components. The series is engineered for high reliability in offline applications where space and efficiency are critical.

AC DC Converters, Offline Switchers Replacement Considerations

NCP1012ST130T3 offers similar functionality with a 130 kHz switching frequency. NCP1014ST100T3G provides comparable performance with updated feature sets. Verify pin compatibility and electrical parameters when substituting these alternatives.