Torex Semiconductor Ltd. (Tokyo Japan: President, Koji Shibamiya, 6616: 1st section at Tokyo Stock Exchange) has launched the XC9280 series of 18V input, 3A peak output current step-down synchronous DC/DC converters which have a 70% smaller package area than previous products.
Products in the XC9280 series support 18V input and 3A peak output current and have a switching frequency of 1.2MHz allowing them to be used with small coils (2.2μH inductance). The series employs a compact TSOT-26 package (2.8 x 2.9 x h1.1mm) with mounting feet giving a 70% smaller package area per unit than previous equivalent products as well as a 25% smaller mounting area due to the higher switching frequency.
The XC9280 has an operating voltage range of 4.5V – 18V and can support output voltages from 1.8V – 7.0V. With a quiescent current of 80μA, the control system uses PFM/PWM automatic switching control. Even with the compact package, the XC9280 can maintain on-resistance values of 0.166Ω (High Side) and 0.13Ω (Low Side), a level equivalent to previous products. The IC is also equipped with a built-in external adjustment soft-start function effective for preventing output capacity inrush and output voltage startup delays.
Torex will continue to swiftly develop products that meet market needs and contribute to a richer and more abundant society.
【Features of the XC9280 Series】
- 70% smaller package size than previous products (TSOT-26 package: 2.8 x 2.9 x h1.1mm)
- 25% smaller mounting area than previous products due to reduced package size
- 2MHz switching frequency allows for use with small coils (2.2μH inductance)
- 90% efficiency (IOUT=1000mA)
- Soft-start external adjustment is possible
Torex Semiconductor Ltd. is a leading provider of CMOS power management ICs targeted toward battery powered and energy efficient applications. Torex specializes in CMOS analog technology, with LDO voltage regulators, voltage detectors and DC/DC converters making up our core product offering.
