TI Intros TPS601xx Converter Family
Texas Instruments (Dallas, TX) has announced a new family of dc/dc charge pump converters intended to enable ultra low-power applications that require 200 to 300mA such as portable instruments, battery-powered microprocessors and personal digital assistants, and a new family of high-current low dropout voltage regulators (LDOs) designed for low-power applications (1A) such as set-top boxes, modems and telecom systems. The TPS601xx converter family's push-pull output stage reduces output noise or ripple while enabling 300mA of output current with a guaranteed regulation within +/-4 percent. This makes the TPS601xx comparable to that of inductor-based converters, while offering lower costs, simpler design requirements and lower EMI. The output capacitor of the TPS601xx devices is never fully discharged because it no longer has to supply the load current during half the switching cycle. The TPS601xx family consists of high-power devices that are able to deliver up to 300maA of current. The TPS601xx family interfaces with the TMS320C5000 DSP platform and has been specifically designed to produce a regulated 3.3V to 5V output from a low input source such as two AA batteries. Prices start at $1.99 each in quantities of 1,000.