Texas Instruments Incorporated (TI) today introduced a 3-MHz, 100-mA synchronous step-down Data Converter, which integrates a bypass switch and a unique DCS-Control technology and extends battery run-time by 20 percent in low-power wireless and Ultra Low Power MCU. The high-performance device has an operating current of only 25 uA 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.
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 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.
Key features and benefits
• TPS62730 features DCS-Control with excellent AC-line and load transient regulation.
• Excellent low-output voltage ripple (<15mVpp typical) over the entire load range, which makes this part ideal for RF applications.
• Smallest solution size of 12 mm2: 3-MHz frequency and fixed output voltage options require only three external components.
• Input-voltage range of 1.9 V to 3.9 V supports Li-primary battery chemistries such as Li-SOCI2, LiSo2, Li-MnO2 and also two alkaline batteries.
• Ultra-low-power shutdown/bypass-mode current of typical 30-nA supports sleep and low power modes of modern RF transceivers.
• DC/DC operation mode provides regulated output voltage consuming typical 25-uA quiescent current.
Tools and support
TI offers a variety of tools and support to speed the implementation of the TPS62730:
• TPS62730EVM-726 step-down DC/DC converter evaluation module (EVM): www.ti.com/TPS62730EVM-pr.
• Evaluation Modules and User Guides:
o TPS62730EVM-726 (TPS62730 only): www.ti.com/tps62730evm-pr
o CC2540TPS62730EM-RD (CC2540 and TPS62730) www.ti.com/tps627302540evm-pr
o EM430F6137RF900 (CC430 and TPS62730): www.ti.com/tps62730cc430evm-pr
• TPS62730 data sheet: www.ti.com/TPS62730-pr.
• SwitcherPro(TM) switching power supply design tool: www.ti.com/tps62730spstool-pr
• PSPICE model: www.ti.com/tps62730pspice-pr
• TINA-TI transcient SPICE model: www.ti.com/tps62730tinati-pr
• TINA-TI reference design: www.ti.com/tps62730refdesign-pr
• App Note:
o AN097 - Current Savings in CC254x Using the TPS62730
o Using a DC-DC Converter to Reduce Power (Current) Consumption In CC430 Systems
Find out more about TI’s low-power RF and power management solutions:
• Download TI’s Wireless Connectivity Solutions Guide: www.ti.com/tps62730wcguide-pr
• Learn about TI’s CC2540 single-mode Bluetooth® low energy system-on-chip: www.ti.com/tps62730cc2540-pr
• Learn about TI’s CC430 ultra-low power microcontroller: www.ti.com/tps62730cc430-pr
• View Current Savings in CC254xx Using the TPS62730 Application Note (AN097): www.ti.com/tps62730cc254ap-pr
• Ask questions, help solve problems in the Low-Power RF and Wireless Connectivity forum in the TI E2E™ Community: www.ti.com/tps62730lpforum-pr
• Ask questions, help solve problems in the Power forum in the TI E2E™ Community: www.ti.com/tps62730powerforum-pr
• Download the new Power Management Guide: www.ti.com/powerguide-pr.
# # #
Texas Instruments semiconductor innovations help 80,000 customers unlock the possibilities of the world as it could be – smarter, safer, greener, healthier and more fun. Our commitment to building a better future is ingrained in everything we do – from the responsible manufacturing of our semiconductors, to caring for our employees, to giving back inside our communities. This is just the beginning of our story. Learn more at http://www.ti.com/
The TPS62730 reduces current consumption drawn from the battery in transmit and receive modes by achieving 95-percent power conversion efficiency and an on-chip bypass switch with only 30-nA of power. The converter also generates less than 15mVpp typical output voltage ripple, allowing it to support many low-power RF applications, such as those powered by TI’s 2.4-GHz CC2540 and CC430 system-on-chip (SOC) solutions. To order samples and evaluation model, and download SwitcherPro™ design tool and PSpice and TINA-TI™ models of the TPS62730, visit: www.ti.com/tps62730-pr.
DCS-Control technology
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 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.
Key features and benefits
• TPS62730 features DCS-Control with excellent AC-line and load transient regulation.
• Excellent low-output voltage ripple (<15mVpp typical) over the entire load range, which makes this part ideal for RF applications.
• Smallest solution size of 12 mm2: 3-MHz frequency and fixed output voltage options require only three external components.
• Input-voltage range of 1.9 V to 3.9 V supports Li-primary battery chemistries such as Li-SOCI2, LiSo2, Li-MnO2 and also two alkaline batteries.
• Ultra-low-power shutdown/bypass-mode current of typical 30-nA supports sleep and low power modes of modern RF transceivers.
Tools and support
TI offers a variety of tools and support to speed the implementation of the TPS62730:
• TPS62730EVM-726 step-down DC/DC converter evaluation module (EVM): www.ti.com/TPS62730EVM-pr.
• Evaluation Modules and User Guides:
o TPS62730EVM-726 (TPS62730 only): www.ti.com/tps62730evm-pr
o CC2540TPS62730EM-RD (CC2540 and TPS62730) www.ti.com/tps627302540evm-pr
o EM430F6137RF900 (CC430 and TPS62730): www.ti.com/tps62730cc430evm-pr
• TPS62730 data sheet: www.ti.com/TPS62730-pr.
• SwitcherPro(TM) switching power supply design tool: www.ti.com/tps62730spstool-pr
• PSPICE model: www.ti.com/tps62730pspice-pr
• TINA-TI transcient SPICE model: www.ti.com/tps62730tinati-pr
• TINA-TI reference design: www.ti.com/tps62730refdesign-pr
• App Note:
o AN097 - Current Savings in CC254x Using the TPS62730
o Using a DC-DC Converter to Reduce Power (Current) Consumption In CC430 Systems
Find out more about TI’s low-power RF and power management solutions:
• Download TI’s Wireless Connectivity Solutions Guide: www.ti.com/tps62730wcguide-pr
• Learn about TI’s CC2540 single-mode Bluetooth® low energy system-on-chip: www.ti.com/tps62730cc2540-pr
• Learn about TI’s CC430 ultra-low power microcontroller: www.ti.com/tps62730cc430-pr
• View Current Savings in CC254xx Using the TPS62730 Application Note (AN097): www.ti.com/tps62730cc254ap-pr
• Ask questions, help solve problems in the Low-Power RF and Wireless Connectivity forum in the TI E2E™ Community: www.ti.com/tps62730lpforum-pr
• Ask questions, help solve problems in the Power forum in the TI E2E™ Community: www.ti.com/tps62730powerforum-pr
• Download the new Power Management Guide: www.ti.com/powerguide-pr.
# # #
About Texas Instruments
Texas Instruments semiconductor innovations help 80,000 customers unlock the possibilities of the world as it could be – smarter, safer, greener, healthier and more fun. Our commitment to building a better future is ingrained in everything we do – from the responsible manufacturing of our semiconductors, to caring for our employees, to giving back inside our communities. This is just the beginning of our story. Learn more at http://www.ti.com/
