Lastnosti
●High-Efficiency Synchronous Step-Down Converter With up to 95 percent Efficiency
●2.5-V to 6-V Input Voltage Range
●Adjustable Output Voltage Range From 0.7 V to V
●Fixed Output Voltage Options Available
●Up to 300-mA Output Current
●1-MHz Fixed-Frequency PWM Operation
●Highest Efficiency Over Wide Load Current Range Due to Power Save Mode
●15-µA Typical Quiescent Current
●Soft Start
●100 percent Duty Cycle Low-Dropout Operation
●Dynamic Output-Voltage Positioning
●Available in a 5-Pin SOT23 Package
Aplikacije
●PDAs and Pocket PCs
●Cellular Phones and Smart Phones
●Low Power DSP Supplies
●Digital Cameras
●Portable Media Players
●Portable Equipment
Opis
Naprave TPS6220x so družina visoko{1}}zmogljivih sinhronih- pretvornikov, ki so idealno primerni za prenosne sisteme, ki jih napajajo 1- Li-Ion ali 3-celične NiMH/NiCd baterije. Naprave so primerne tudi za delovanje iz standardne 3,3-V ali 5-V napetostne tirnice.
With an output voltage range of 6 V down to 0.7 V and up to 300 mA output current, the devices are ideal to power low voltage DSPs and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1 MHz. At light load currents, the part enters the power save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 µA; therefore, it achieves the highest efficiency over the entire load current range. The TPS6220x needs only three small external components. Together with the SOT23 package, a minimum system solution size is achieved. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors.
Priljubljena oznake: tps62203dbvr, Kitajska, dobavitelji, proizvajalci, veleprodaja, na zalogi
