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TPS62273DRVT Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS62273DRVT Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 23 page 1 FEATURES DESCRIPTION APPLICATIONS V 0.9V/1.15V upto400mA OUT VIN GND EN FB TPS62270DRV VSEL L 2.2 H m SW C 10 F OUT m 0.9V 1.15V V =2Vto6V IN C 4.7 F IN m GND C OUT U 1 C IN V OUT V IN L 1 Totalarea 21.5mm² 6.5mm TPS62270 TPS62273 www.ti.com................................................................................................................................................... SLVS799B – NOVEMBER 2007 – REVISED JUNE 2008 2.25 MHz 400-mA Step Down Converter With Selectable VOUT • High Efficiency Step Down Converter • Output Current up to 400 mA The TPS62270 device is a high efficiency synchronous step down DC-DC converter optimized • V IN Range From 2V to 6V for Li-Ion Batteries for battery powered portable applications. It provides With Extended Voltage Range up to 400 mA output current from a single Li-Ion cell. • 2.25 MHz Fixed Frequency Operation With an input voltage range of 2.0 V to 6 V the device • Pin-Selectable Fixed Output Voltage supports Li-Ion batteries with extended voltage range, • Power Save Mode for Highest Efficiency and is ideal to power portable applications like mobile phones and other portable equipment. • Automatic transition between PFM and PWM Mode The TPS62270 operates at 2.25 MHz fixed switching • Voltage Positioning in PFM Mode frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the • Typical 15-µA Quiescent Current entire load current range. The Power Save Mode is • 100% Duty Cycle for Lowest Dropout optimized for low output voltage ripple. • Available in 2×2×0,8 mm SON Package With the VSEL pin, two different fixed output voltages • Allows <1 mm Solution Height can be selected. This function features a dynamic voltage scaling for low power processor cores. In the shutdown mode, the current consumption is • Low Power Processor Supply reduced to less than 1 µA. TPS62270 allows the use • Cell Phones, Smart-phones of small inductors and capacitors to achieve a small • Navigation Systems solution size. • Low Power DSP Supply The TPS62270 is available in a 2 mm × 2 mm, 6-pin • Portable Media Players SON package. • Digital Cameras 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. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2008, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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