Power chip

The FSL156MRBN is an integrated Pulse Width Modulation (PWM) controller and SenseFET designed for off-line Switch Mode Power Supplies (SMPS) with minimal external parts count. The PWM controller includes an integrated fixed-frequency oscillator, undervoltage lockout (UVLO), leading-edge spacing (LEB), optimized gate drivers, internal soft-start, temperature-compensated precision current source for loop compensation, and self-protection circuit. Compared to discrete MOSFET and PWM controller solutions, the FSL156MRBN reduces total cost, parts count, size and weight; while improving energy efficiency, productivity and system reliability. This device provides a basic platform for cost-effective design of flyback converters.

The NCV1034 is a high voltage PWM controller for high performance synchronous buck DC-DC applications. The NCV1034 drives a pair of external N-MOSFETs with a programmable switching frequency up to 500 kHz, allowing the flexibility to tune the operation of the IC to meet system-level requirements. The external synchronization feature simplifies system-level filter design. The output voltage is precisely regulated using an internal 1.25 V reference for low voltage applications. Protection features such as undervoltage lockout and intermittent current limit are provided to provide the required system-level safety in the event of a fault.

2000PCS/box