供应移动电源800MA-1A*升压CE835*

?? INTRODU*ION  
The CE8353  is a CMOS PFM-control step-up
switching DC/DC converter. The VFM controller
allows the duty ratio to be automatically
switched according to the load, enabling
products with a low ripple over a wide range,
high efficiency, and high output current. With
the  CE8353, a step-up switching  DC/DC
converter  can be configured  by using an
external coil, capacitor, and diode. The built-in
MOSFET is turned off by a protection circuit
when the voltage at the LX pin exceeds the
limit to prevent it from being damaged. This
feature, along with the mini package and low
current consumption, makes the CE8353  ideal
for applications such as the power supply unit
of portable equipment.  
? FEATUR*
?  Low voltage operation: Startup at 0.9 V
@IOUT = 1 mA
?  Work frequency: 300KHz
?  External parts: Coil, capacitor, diode
?  Accuracy of &plu*n;2%
?  High efficiency：  87%（t*.）
?  Shutdown function
?  Low ripple, Low noise

? APPLICATIONS
?  Di*al cameras
?  Electronic notebooks and PDAs
?  Portable CD/MD players
?  Cameras, video equipment,
?  Communications equipment
?  Power supply for microcomputers