Features
?? ·Up to 95% Efficiency
?? ·Current Mode Operation for Excellent Line and Load Transient Response
?? ·Low Quiescent Current: 200μA
? ?·Output Voltage：0.6V～5.5V
? ?·Automatic PWM/PFM Mode Switching
? ?·No Schottky Diode Required
? ?·1.2MHz Constant Frequency Operation
? ?·Short-Circuit Protection
? ?·Shutdown Quiescent Current: < 1μA
? ?·Low Profile SOT-23-5L Package (lead-free packaging is now available)
Typical Application Circuit
Description
The HX1001 is high efficiency synchronous,PWM step-down DC/DC converters working under an input voltage range from 2.5V 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.
The internal synchronous switch is desired to increase efficiency without an external Schottky diode. The 1.2 MHz fixed switching frequency allows the using of tiny, low profile inductors and ceramic capacitors, which minimized overall solution footprint.
The HX1001 converters are available in the industry standard SOT-23-5L power packages (or upon request).
Applications
? ?·Digital cameras and MP3
? ?·Palmtop computers / PDAs
? ?·Cellular phones
? ?·Portable media players
? ?·Wireless handsets and DSL modems
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聯(lián)系我們：
地址：深圳市福田區(qū)振華路中航北苑大廈C棟18-C2
電話：0755-82773035 ? ?0755-82542659?（銷(xiāo)售部）
傳真：0755-82773035-8005
24小時(shí)手機(jī)：13538044409
QQ：569245126? /? 505419454
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? ? ? ? ??供好芯片，讓您造好產(chǎn)品!?
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