Features
Ø Up to 94% Efficiency
Ø Current Mode Operation for Excellent Line and Load Transient Response
Ø Low Quiescent Current: 200μA
Ø Up to 800mA Load Current
Ø Soft-start
Ø Output Voltage：0.6V～5.5V
Ø Automatic PWM/PFM Mode Switching
Ø No Schottky Diode Required
Ø 1.2MHz Constant Frequency Operation
Ø Short-Circuit Protection
Ø Shutdown Quiescent Current: < 1μA
Ø Low Profile SOT-23-5L Package (lead-free packaging is now available)
Typical Application Circuit
Description
The HX1001-AESA is 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 HX1001-AESA 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 1.2MHz switching frequency allows the using of tiny, low profile inductors and ceramic capacitors, which minimized overall solution footprint.
The HX1001-AESA converters are available in the industry standard SOT-23-5L power packages (or upon request).
Applications
Ø Digital cameras and MP3
Ø Palmtop computers / PDAs
Ø Cellular phones
Ø Wireless handsets and DSL modems
Ø PC cards
Ø Portable media players
联系我们：
地址：深圳市福田区振华路中航北苑大厦C栋18-C2
电话：0755-82773035 0755-82542659 （销售部）
传真：0755-82773035-8005
24小时手机：13538044409
QQ：569245126 / 505419454
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