16V Step-down DC/DC Converter with Internal Driver Tr. XC9246 / XC9247 Series
TOREX SEMICONDUCTOR LTD. (Tokyo Japan: President, Tomoyuki Fujisaka) has developed a new 16V Step-down DC/DC converter with an internal driver Tr., the XC9246/XC9247 series.
The XC9246/XC9247 series are 16V step-down DC/DC converters with an internal driver Tr. The output voltage can be set within the range 1.2V to 5.6V using the 1.0V (±1.5%) internal reference voltage and external resistors. The soft-start time is set internally to 1.5ms (TYP.) and this can be adjusted externally using a resistor and capacitor connected to the EN/SS pin.
The switching frequency is a high 1.2MHz, enabling the use of small external components. The bootstrap method is employed and the Hi side driver is N-ch to reduce chip area, making it possible to house the IC in a SOT-26W or small USP-6C package. Small peripheral components and a compact package also mean less mounting area is needed, contributing to improved efficiency/thermal performance. It can replace a 3-pin regulator.
PWM control (XC9246) or PWM/PFM auto switching control (XC9247) can be selected for the operation mode. The XC9246 series is PWM control, and the XC9247 series is PWM/PFM, which automatically switches from PWM to PFM during light loads and provides high efficiency, high load response, low voltage ripple, can be achieved over a wide range of load conditions.
Internal protective circuits include a current limiting circuit, thermal shutdown, and short-circuit protection circuit. An internal UVLO function that forcibly turns the driver Tr. off at the detection voltage level or lower is also provided. This series is an environment-friendly product that complies with the EU RoHS Directive and is Pb-free.
XC9246/XC9247 Series Features
- PFM control achieves high efficiency at light loads
- A small coil and ceramic capacitors can be used
- Can replace a 3-pin regulator
- Internal current limiting circuit, thermal shutdown, and short-circuit protection circuit
- Internal UVLO function (forcibly turns off driver Tr. at the detection voltage level or lower)
|Capital||1819.58 million JPY|
|Operations||1.Research and Development, Manufacturing of ICs and active discrete components.
2.Sales of ICs and active discrete components.
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.
- Singapore: TOREX SEMICONDUCTOR (S) PTE LTD
Tel: +65-6745-1352 E-mail: firstname.lastname@example.org
- USA: TOREX USA Corp.
Tel: +1-949-261-2022 E-mail: email@example.com
- Europe: TOREX SEMICONDUCTOR EUROPE LIMITED
Tel: +44-1530-510190 E-mail: firstname.lastname@example.org