The 2A step-down DC switching power supply made of efficient switch controller LT1148-5

Published:2011/6/15 7:11:00 Author:Borg | Keyword: step-down, power supply, switch controller | From:SeekIC

In the figure is a 2A step-down DC switching power supply made of efficient switch controller LT1148-5. The power supply circuit in fixed with MOSFET as the controlled power switch element, which replaces the external Schottky subsequent flow diode, so the voltage drop and the power consumption can be reduced further, and the switching efficiency of the power supply is increased. In the figure, if the input voltage is 6V, the loading current ranges from 20mA to 1.8A, the switching efficiency is over 95%, and the diode D functions as the protector.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/The_2A_step_down_DC_switching_power_supply_made_of_efficient_switch_controller_LT1148_5.html

Print this Page | Comments | Reading(3)