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TPS62730 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62730 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page I With TPS62730 BAT 15 17 19 21 23 25 27 29 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 Battery Voltage - V BAT Battery Current Reduction @ CC2540 0dBm CW TX Power Battery Current Reduction of CC2540 2.4GHz Bluetooth Low Energy System-On-Chip Solution I NO TPS62730 BAT TPS62730 VIN ON/BYP STAT GND VOUT SW V 2.1V OUT V 2.2V - 3.9V* IN C 2.2 IN µF C 2.2 OUT µF L 2.2 H m ON BYP * At V < 2.2V, V tracks V IN OUT IN R pullup TPS62732, TPS62733 TPS62730 www.ti.com SLVSAC3C – MAY 2011 – REVISED DECEMBER 2012 Step Down Converter with Bypass Mode for Ultra Low Power Wireless Applications Check for Samples: TPS62732, TPS62733, TPS62730 1 FEATURES DESCRIPTION The TPS62730 is a high frequency synchronous step 2 • Input Voltage Range VIN from 1.9V to 3.9V down DC-DC converter optimized for ultra low power • Typ. 30 nA Ultra Low Power Bypass Mode wireless applications. The device is optimized to • Typ. 25 μA DC/DC Quiescent Current supply TI's Low Power Wireless sub 1GHz and 2.4GHz RF transceivers and System-On-Chip- • Internal Feedback Divider Disconnect solutions. The TPS62730 reduces the current • Typ. 2.1 Ω Bypass Switch between VIN and VOUT consumption drawn from the battery during TX and • Automatic Transition from DC/DC to Bypass RX mode by a high efficient step down voltage Mode conversion. It provides up to 100mA output current and allows the use of tiny and low cost chip inductors • Up To 3MHz switch frequency and capacitors. With an input voltage range of 1.9V to • Up to 95% DC/DC Efficiency 3.9V the device supports Li-primary battery • Open Drain Status Output STAT chemistries such as Li-SOCl2, Li-SO2, Li-MnO2 and also two cell alkaline batteries. • Output Peak Current up to 100mA • Fixed Output Voltages 1.9V, 2.05V, 2.1V, 2.3V The TPS62730 features an Ultra Low Power bypass mode with typical 30nA current consumption to • Small External Output Filter Components support sleep and low power modes of TI's CC2540 2.2 μH/ 2.2μF Bluetooth Low Energy and CC430 System-On-Chip • Optimized For Low Output Ripple Voltage solutions. In this bypass mode, the output capacitor • Small 1 × 1.5 × 0.6mm3 SON Package of the DC/DC converter is connected via an integrated typ. 2.1 Ω Bypass switch to the battery. • 12 mm2 Minimum Solution Size In DC/DC operation mode the device provides a fixed APPLICATIONS output voltage to the system. With a switch frequency up to 3MHz, the TPS62730 features low output ripple • CC2540 Bluetooth™ Low Energy voltage and low noise even with a small 2.2uF output System-On-Chip Solution capacitor. The automatic transition into bypass mode • Low Power Wireless Applications during DC/DC operation prevents an increase of output ripple voltage and noise once the DC/DC • RF4CE, Metering converter operates close to 100% duty cycle. The device automatically enters bypass mode once the battery voltage falls below the transition threshold VIT BYP . The TPS62730 is available in a 1 × 1.5mm 2 6 pin QFN package. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 Bluetooth is a trademark of Bluetooth SIG. UNLESS OTHERWISE NOTED this document contains Copyright © 2011–2012, Texas Instruments Incorporated PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Similar Part No. - TPS62730_12 |
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Similar Description - TPS62730_12 |
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