fitipower integrated technology lnc.
FP6733
PWM Controlled, Step-up DC/DC Converter in Tiny Package
Description
The ...
fitipower integrated technology lnc.
FP6733
PWM Controlled, Step-up DC/DC Converter in Tiny Package
Description
The FP6733 is a high efficiency PWM DC/DC
step-up converter with internal compensated current
mode controller. The output voltage is set by using
two external resistors. The 550kHz switching
frequency
minimizes the size of external
components. Both internal 1A switch and driver for
driving external power device (NMOS or
NPN) are
provided.
The FP6733 starts up below 1V input voltage with 1mA load. Due to built-in automatic PWM/PFM switch-over function, the FP6733 is able to get high efficiency during both light and heavy load. External
transistor pin is available to accommodate high output current applications.
The FP6733 is available in SOT-23-6 and TSOT-23-6 packages.
Features
0.9V (Typ.) Low Start-up Input Voltage at 1mA Load
High Switching Frequency at 550kHz Provide Flexibility for Using Internal and External
Power Switches Automatic PFM Mode at Light Load Low Ripple and High Efficiency Excellent Line/Load Regulation Chip Enable Control Function Current Limit Protection Thermal Overload Protection Space Saving Packages: SOT-23-6 and
TSOT-23-6
Applications
PDA MP3 DSC RF Tag Wireless Equipment Portable Equipment
Pin Assignments
S6 Package (SOT-23-6) FB VDD LX
654 (Marking)
123
CE EXT GND S9 Package (TSOT-23-6)
FB VDD LX
654 (Marking)
123
CE EXT GND Figure1. Pin Assignment of FP6733
Ordering Information
FP6733□□□
TR...