Dallas—TI says its TPS62601 is the industry's smallest and thinnest 500-mA, step-down DC/DC converter solution. Suited to space-constrained applications for smart phones and portable electronics, the device, in a 6-pin, chip scale package measuring 0.9-by-1.3 mm, is reportedly the first 6-MHz, 500-mA converter that can achieve a total board solution size of less than 13-mm2 (39 percent smaller than the company's TPS62260 solution) and 0.6-mm profile. The synchronous switchmode device requires only one 0.47-microhenry inductor and two low-cost ceramic capacitors.
“Portable system designers continue to desire more features on their devices, which require smaller, efficient DC/DC converters to maintain long battery life and system run-times,” said Steve Anderson, senior vice president of Power Management, TI. “The TPS62601 gives portable designers access to the smallest, thinnest 500-mA DC/DC solution, which simplifies design and reduces board space and time-to-market.”
The TPS62601, which operates from a 2.3- to 5.5-volt input, features up to 89 percent efficiency and a typical quiescent current of just 30 microamps (typical). It delivers 1.8 volts to support memory modules, GPS modules, Bluetooth and Wi-Fi modules, and other wireless micro-modules used in such systems as digital still cameras, portable disk drives, and media players. DC voltage regulation is ±1.5 percent.
Other features include a power-save mode, which the chip automatically enters during light-load operating conditions. In shutdown mode, the device's current draw is reduced to less than 1 microamp.
Datasheet : Click here.
Pricing and availability : The TPS62601, available in volume from TI and its authorized distributors, has a suggested retail price of $1.45 each in quantities of 1,000 units. The TPS62601EVM-327 evaluation module, application notes, and TI's online Power Management selection tool are available through power.ti.com.
Texas Instruments , 1-800-477-8924, www.ti.com