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TPS63020 Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS63020 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 29 page V IN L1 VIN VINA EN PS/SYNC GND L2 VOUT FB PGND L 1 1µH C 2 C 3 2.5 V to 5.5V V OUT 3.3V2A TPS63020 PG Power Good Output C 1 2X10µF 0.1µF 4X22µF 1M 180k R 1 R 2 1M R 3 !"# $%$&'( )*+ ,-)!) . ,-) )*+ ,-)!) . ,-) )*+ ,-)!) . ,-) )*+ ,-)!) . ,-) Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS63020, TPS63021 SLVS916D – JULY 2010 – REVISED OCTOBER 2015 TPS6302x High Efficiency Single Inductor Buck-Boost Converter With 4-A Switches 1 Features 3 Description The TPS6302x devices provide a power supply 1 • Input Voltage Range: 1.8 V to 5.5 V solution for products powered by either a two-cell or • Fixed and Adjustable Output Voltage Options from three-cell alkaline, NiCd or NiMH battery, or a one- 1.2 V to 5.5 V cell Li-ion or Li-polymer battery. Output currents can • Up to 96% Efficiency go as high as 3 A while using a single-cell Li-ion or Li-polymer battery, and discharge it down to 2.5 V or • 3-A Output Current at 3.3 V in Step Down Mode lower. The buck-boost converter is based on a fixed (VIN = 3.6 V to 5.5 V) frequency, pulse width modulation (PWM) controller • More than 2-A Output Current at 3.3 V in Boost using synchronous rectification to obtain maximum Mode (VIN > 2.5 V) efficiency. At low load currents, the converter enters • Automatic Transition Between Step Down and power save mode to maintain high efficiency over a wide load current range. The power save mode can Boost Mode be disabled, forcing the converter to operate at a • Dynamic Input Current Limit fixed switching frequency. The maximum average • Device Quiescent Current less than 50 μA current in the switches is limited to a typical value of • Power Save Mode for Improved Efficiency at Low 4 A. The output voltage is programmable using an external resistor divider, or is fixed internally on the Output Power chip. The converter can be disabled to minimize • Forced Fixed Frequency Operation at 2.4 MHz battery drain. During shutdown, the load is and Synchronization Possible disconnected from the battery. • Smart Power Good Output The TPS6302x devices operate over a free air • Load Disconnect During Shutdown temperature range of –40°C to 85°C. The devices are • Overtemperature Protection packaged in a 14-pin VSON package measuring 3mm × 4mm (DSJ). • Overvoltage Protection • Available in a 3mm × 4mm 14-Pin VSON Package Device Information(1) (DSJ) OUTPUT VOLTAGE PART NUMBER PACKAGE DC/DC 2 Applications TPS63020 Adjustable VSON (14) • All Two-Cell and Three-Cell Alkaline, NiCd or TPS63021 3.3 V NiMH or Single-Cell Li Battery Powered Products (1) For all available packages, see the orderable addendum at • Ultra Mobile PCs and Mobile Internet Devices the end of the datasheet. • Digital Media Players Efficiency vs Output Current • Digital Still Cameras (DSC) and Camcorders • Mobile Phones and Smart Phones • Personal Medical Products • Industrial Metering Equipment • High Power LEDs SPACE Typical Application Schematic 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Numéro de pièce similaire - TPS63020_15 |
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Description similaire - TPS63020_15 |
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