TPS62730EVM-726 Step Down Converter

Texas Instruments' step down converter with bypass mode for ultra low power wireless applications

TPS62730EVM-726 Step Down ConverterTexas Instruments' TPS62730EVM-726 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS62730 step-down converter. The user’s guide describes the TPS62730 evaluation module, how to perform a stand-alone evaluation or interface with a host or system. The converter is designed to deliver up to 100 mA of continuous current to the output. The converter can be switched into bypass mode by grounding the ON/BYP pin or automatically with the input voltage falling to the output regulation voltage. The TPS62730 device is a high-frequency, synchronous step-down DC-DC converter optimized for ultralow-power wireless applications. The device is optimized to supply TI’s low-power wireless sub-1 GHz and 2.4 GHz RF transceivers. The TPS62730 reduces the current consumption drawn from the battery during TX and RX modes by a highly efficient step-down voltage conversion. It provides up to 100 mA output current and allows the use of tiny and low-cost chip inductors and capacitors. This device supports most Li-ion primary battery chemistries, with an input range of 1.9 V to 3.9 V DC. The TPS62730 features an ultralow-power bypass mode with a typical 30 nA current consumption to support low-power modes of modern RF transceivers. In this bypass mode, the input is connected the VOUT pin via an internal 2 Ω bypass FET. The device automatically enters bypass mode when the input (battery) voltage falls to the bypass transition threshold.

Features Applications
  • Input voltage range VIN from 1.9 V to 3.9 V
  • Typ. 30 nA ultra low power bypass mode
  • Typ. 25 µA DC/DC quiescent current
  • Internal feedback divider disconnect
  • Typ. 2.5 Ω bypass switch between VIN and VOUT
  • Automatic transition from DC/DC to bypass mode
  • Small external output filter components 2.2 µH/ 2.2 µFv
  • Fixed output voltage options 2.1 V, 2.05 V and 1.9 V
  • Up to 3 MHz switch frequency
  • Up to 95% DC/DC efficiency
  • Open drain status output STAT
  • Output peak current up to 100 mA
  • Optimized for low output ripple voltage
  • Small 1 × 1.5 × 0.6 mm3 SON package
  • 12 mm2 minimum solution size

Evaluation Module

ImageManufacturer Part NumberDescriptionPart StatusAvailable Quantity
TPS62730EVM-726 datasheet linkEVAL MODULE FOR TPS62730TPS62730EVM-726EVAL MODULE FOR TPS62730Active7 - Immediate
TPS62730EVM-726 product page link

Related Silicon

ImageManufacturer Part NumberDescriptionPackagingPart StatusApplicationsAvailable Quantity
TPS62730DRYT datasheet linkIC DCDC CONV STP-DN SYNC LP 6SONTPS62730DRYTIC DCDC CONV STP-DN SYNC LP 6SONTape & Reel (TR)ActiveConverter, Bluetooth (BLT)7250 - Immediate
2500 - Factory Stock
TPS62730DRYT product page link
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Published: 2011-08-04