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HX1009,双路高效PWM降压DC/DC

HX1009】双路高效PWM降压DC/DC

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HX1009 详细介绍
相关商品: RT8020APQW PAM2301 MP1484 XM5063 XM5064
The HX1009-AMH is a dual high efficiency synchronous, PWM step-down DC/DC converters working under an input voltage range of 2.5V to 5.5V. This feature makes the 
HX1009-AMH suitable for single Li-lon battery-powered applications. 100% duty cycle capability extends battery life in portable devices, while the quiescent current is 190μA with no load, and drops to < 1μA in shutdown.  The internal synchronous switch is desired to increase efficiency without an external Schottky diode. The 1.43 MHz fixed switching frequency allows the using of tiny, low profile inductors and ceramic capacitors, which minimized overall solution footprint. 
The HX1009-AMH converters are available in the industry standard DFN3*3-12L Packages. 
 
HX1009技术特性
•  Up to 90% Efficiency 
•  Current Mode Operation for Excellent and Load Transient Response 
•  Low Quiescent Current (one channel):
•  Up to 900mA Load Current 
•  Output Voltage:0.6V~5.5V 
•  Automatic PWM/PFM Mode Switching
•  No Schottky Diode Required 
•  1.43MHz Fixed Frequency Switching 
•  Short-Circuit Protection 
•  Shutdown Quiescent Current: < 1μA 
•  DFN3*3-12L Package   
 
HX1009应用领域
•  Digital cameras and MP3 
•  Palmtop computers / PDAs 
•  Cellular phones 
•  Wireless handsets and DSL modems 
•  PC cards 

•  Portable media players  


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