High Efficiency 16V, 500kHz Synchronous Step-Down Converter
l Wide 4.5V to 16V Operating Input Range
l Low RDS(ON) Internal Power MOSFETs
l Low Quiescent Current
l Fast Load Transient Response
l Fixed 500kHz Switching Frequency
l Build-in soft start function
l Output Adjustable from 0.8 V to 5V
-Output Over-Voltage Protection
-Output Under-Voltage Protection
-Input Over-Voltage Protection
l Available in FC-TSOT-23-6 Package
l Lead Free and Green Devices Available (RoHS
APW7318 is a high efficiency synchronous buck converter
with integrated 60m/37mΩ of upper/lower power
MOSFET. The APW7318 design with a COT-mode
control scheme, can convert wide input voltage of 4.5V to
16V to the output voltage adjustable from 0.8V to 5V to
provide excellent output voltage regulation.
The APW7318 is equipped with an automatic PFM/PWM
mode operation. At light load, the IC operates in the PFM
mode to reduce the switching losses. The APW7318
provides very high efficiency over light to heavy loads with
loading-modulated switching frequencies.
The APW7318 is also equipped with Power-on-reset,
softstart, and whole protections (over-temperature,
over-voltage, under-voltage, over-current and input
over-voltage) into a single package.
This device, available in FC-TSOT-23-6 package,
provides a very compact system solution external
components and PCB area.
Simplified Application Circuit
l LCD TVs
l LCD Monitors
l Networking Systems
l Distributed Power Systems
Copyright©ANPEC Electronic Corp.
Rev. A.7 – Apr, 2018