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High-performance voltage regulator adds 20-percent run-time to ultra-low power wireless applications

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By eeNews Europe


The high-performance device has an operating current of 25 µA and supports many low-power applications, such as Bluetooth low-energy systems, metering and building technologies, mobile phones, consumer electronics, medical and human interface devices.

The TPS62730 achieves 95-percent conversion efficiency and reduces current consumption drawn from the battery in transmit and receive modes. The device’s ultra-low power bypass switch only consumes 30 nA of current for sleep and low power modes. The TPS62730 converter also generates less than 15 mVpp typical output voltage ripple, providing low noise to low-power RF applications, such as those powered by TI’s 2.4-GHz CC2540 and CC430 system-on-chip (SOC) solutions.

DCS-Control technology is an advanced regulation topology that combines the advantages of hysteretic and voltage mode control within a single device, enabling excellent AC line and transient load regulation. The feature provides a seamless transition between high-load and light-load (power save) operation. An additional voltage feedback loop also ensures DC accuracy. DCS-Control technology alleviates the need to research external filtering components, thus reducing associated space and cost.

The TPS62730 is available now from TI and its authorized network of distributors in a small, 6-pin, 1- mm x 1.5-mm x 0.6-mm SON package, priced at $0.85 in quantities of 1,000. Additional devices with fixed voltages include TPS62731, TPS62372, TPS62374 and TPS62735.

To download the datasheet and SwitcherPro design tool and PSpice and TINA-TI models of the TPS62730, visit: www.ti.com/tps62730-pr.


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