HX1001数据手册连接器互连器件的线对板规格书PDF

描述 Description

The HX1001 is high efficiency synchronous, PWM step-down DC/DC converters working under an input voltage range from 2.2V to 5.5V. This feature makes the HX1001 suitable for single Li-Lon battery-powered applications. 100% duty cycle capability extends battery life in portable devices, while the quiescent current is 200μA with no load, and drops to <1μA in shutdown.\r
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The internal synchronous switch is desired to increase efficiency without an external Schottky diode. The 1.0MHz/1.4MHz switching frequency allows the using of tiny, low profile inductors and ceramic capacitors, which minimized overall solution footprint.\r
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The HX1001 converters are available in the industry standard TSOT/SOT-23-5L power packages (or upon request).

特性 Features

· Up to 95% Efficiency\r
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· Current Mode Operation for Excellent Line and Load Transient Response\r
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· 700mA Output Current\r
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· Low Quiescent Current: 200μA\r
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· Output Voltage: 0.6V ～ 5.5V\r
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· Automatic PWM/PFM Mode Switching\r
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· No Schottky Diode Required\r
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· Frequency Operation: 1.0MHz for Fixed Output Voltage and 1.4MHz for Adjustable Output Voltage\r
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· Short-Circuit Protection\r
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· Shutdown Quiescent Current: <1μA\r
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· Low Profile TSOT/ SOT-23-5L Package (lead-free packaging is now available)

应用 Application

· Digital cameras and MP3\r
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· Palmtop computers / PDAs\r
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· Cellular phones\r
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· Wireless handsets and DSL modems\r
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· Portable media players\r
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· PC cards