EC3293B Datasheet, PDF (1/11 Pages) E-CMOS Corporation – 3A, 18V, 500KHz, Synchronous Step Down DC/DC Converter

3A, 18V, 500KHz,
Synchronous Step Down DC/DC Converter
EC3293B
General Description
The EC3293B 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 EC3293B 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 EC3293B requires a minimal number of readily available, standard external components and is available in
a space-saving TSOT23-6L package.
Features
● 4.5V to 18V input voltage
● Output adjustable from 0.6V to 15V
● Output current up to 3A
● Integrated 85mΩ/45mΩ power MOSFET switches
● Shutdown current 3μA typical
● Efficiency up to 95%
● Fixed frequency 500KHz
● 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
Top View
TSOT23-6L
BOOT 1
6 SW
GND 2
5 IN
FB 3
4 EN
E-CMOS Corp. (www.ecmos.com.tw)
1/11
5G01N-Rev. F002