Irvine, Calif. Toshiba America Electronic Components, Inc. has introduced two new single-chip dc/dc converter ICs intended for use as step-down converters in digital consumer products, PCs and computer peripherals. These monolithic devices use a new CMOS process to achieve high efficiency and high-output current up to 3.8 A, in compact packages with low thermal resistance.
The step-down converters feature adjustable output voltage and a selection of built-in functions including synchronous rectification, under-voltage protection, and adjustable soft-start time. In internal testing, the TCV7101F achieved an efficiency improvement of approximately 4 percent compared to competitive products tested, according to Toshiba.
The 2.5-A output TCV7100F and 3.8-A output TCV7101F each feature a 2.7-V to 5.5-V input range. The 2.5-A device offers typical switching frequency of 800 kHz, while the 3.8-A TCV7101F provides typical switching frequency of 600 KHz. The TCV7101F features a built-in driver for an external low side MOSFET to enable designers to select the external device most suitable for their design requirements.
Both the TCV7100F and the TCV7101F use current mode PWM control and are packaged in small SOP Advance packages, which measure 5 x 6 x 0.95 mm.
Toshiba America Electronic Components is exhibiting at APEC, Booth 112-11.
Pricing: The TCV7100F and TCV7101F devices are priced at $0.70 and $0.75 each, respectively.
Availability: Samples are available now. The TCV7100F is in mass production and the TCV7101F is scheduled for mass production in March 2008.
Toshiba America Electronic Components, Inc., www.toshiba.com/taec