HX1001降压芯片.pdf

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TE1839845898 HX1001 700mA Synchronous Buck DC/DC Converter 700mA Synchronous Buck DC/DC Converter Description Features Description Features  Up to 95% Efficiency The HX1001 is high efficiency synchronous,  Current Mode Operation for Excellent Line PWM step-down DC/DC converters working and Load Transient Response under an input voltage range from 2.5V to 5.5V.  Low Quiescent Current: 200A This feature makes the HX1001 suitable for  Low Switch on Resistance RDS(ON), Internal single Li-Lon battery-powered applications. 100% Switch: 0.35 duty cycle capability extends battery life in  Output Voltage :5.5V~0.6V portable devices, while the quiescent current is  Automatic PWM/PFM Mode Switching 200A with no load, and drops to 1A in  No Schottky Diode Required shutdown.  1.4MHz Fixed Frequency Switching  Short-Circuit Protection The internal synchronous switch is desired to  Shutdown Quiescent Current: 1A increase efficiency without an external Schottky  Low Profile SOT-23-5 Package (lead-free packaging is now available) diode. The 1.4 MHz fixed switching frequency allows the using of tiny, low profile inductors and Application

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