Semtech Debuts SC1470 Power Supply Controller
Semtech Corp. (Newbury Park, CA) announced availability of the SC1470 synchronous buck power supply controller. Wide input supply range, fast transient response, small size and high-efficiency operation make the device ideal for use in many designs, including notebook chipsets and LCD displays as well as network power supplies and other embedded applications.
Featuring a 4.5V to 25V input supply range, the SC1470 can operate directly from either the battery/ac adapter input of a notebook computer or from a system 5V supply. The output voltage can be programmed within the 0.5V to 5V range, making the device ideal for chipset voltages, graphics core voltages, and other power requirements in microprocessor-based applications.
Other features include excellent line (0.04 percent per volt) and load (0.3 percent) regulation; over-current, over-voltage and over-temperature protection; under-voltage lockout; and a power-good indication that can control downstream circuitry or sequence other power supplies. The SC1470 is designed to operate over the full industrial temperature range of -40 to +85 degrees C.
Evaluation samples of the SC1470 are available now in TSSOP-14 packaging, with full production units available in November 2001. Pricing begins at $2.65 in production quantities of 1,000 pieces.
