EC3293 Datasheet, PDF (1/11 Pages) E-CMOS Corporation – 3A, 18V, Synchronous Step-down DC/DC Converter

3A, 18V, Synchronous Step-down DC/DC Converter ^EC3293
General Description
Features
The EC3293 is a high-frequency, synchronous, rectified,
step-down, switch-mode converter with internal power
MOSFETs. It offers a very compact solution to achieve
a 3A continuous output current over a wide input supply
range, with excellent load and line regulation.
The EC3293 has synchronous-mode operation for higher
efficiency over the output current-load range.
Current-mode operation provides fast transient response
and eases loop stabilization.
Protection features include over-current protection and
thermal shutdown.
The EC3293 requires a minimal number of readily
available, standard external components and is available
in a space-saving SOP-8L(Exposed Pad) package.
● 4.75V to 18V input voltage
● Output adjustable from 0.923V to 15V
● Output current up to 3A
● Integrated 105mΩ/85mΩ power MOSFET switches
● Shutdown current 3μA typical
● Efficiency up to 95%
● Programmable switching frequency up to 1.5MHz
● Internal soft start
● Over current protection and Hiccup
● Over temperature protection
● RoHS Compliant and 100% Lead (Pb) Free
Applications
● Distributed power systems
● Networking systems
● FPGA, DSP, ASIC power supplies
● Notebook computers
● Green electronics or appliance
Pin Assignments
Pin Description
Pin
Symbol
1
BOOT
2
IN
3
SW
4
GND
5
FB
6
COMP
7
EN
8
FREQ
Description
High-side Gate drive boost input.
Power Input
Power Switching Output.
Ground.
Feedback input.
Compensation node
Enable Input.
Switching Frequency Program Input.
E-CMOS Corp. (www.ecmos.com.tw)
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3L03N-Rev.P001