Power management

The ASPMT100xA is Advanced Silicon's first standalone ASIC for power management purposes. It includes two regulators - a synchronous rectified buck DC-DC converter and a low dropout linear regulator - that drive external low-cost N-channel MOSFETs embedded in feedback loops. Having the transistors and filters external to the chip allows the controllers to be used in a wide variety of input/output voltages and load current conditions for increased utility. Furthermore, the stability and noise rejection of the filters can be accurately adjusted for a specific application.

The ASPMT100xA operates from a dual supply (a 12V "high-voltage" supply and a 3.3V/5V "low voltage" supply). The input voltage can range between 3.3V-5V whereas the regulated outputs are fully adjustable down to 0.8V and maintain an accuracy of ± 2% over the operating temperature range. The circuit also offers protection features like soft-start and output under- and over-voltage detections.

The ASPMT100xA comes in 4 different versions depending on the operating frequency of the PWM controller (300kHz or 600kHz) and on the value of the "low-voltage" supply (3.3V or 5V). The system designer may choose the version which best suits its application in terms of cost, external component selection and performance.

If this product corresponds to your needs, we encourage you to enquire about our custom development services for your specific application. Contact us!