5V | Electronic Project Circuits

Posts Tagged ‘5V’

LM2673 -5V 3A Switching Voltage Regulator

This is the DC switching regultor Voltage 5V at current 3A. It is make for digital circuit.
The important part of the circuit is LM2673, it is 3A Step-Down Voltage Regulator with Adjustable Current Limit.
The LM2673 is Simple and easy to design with using off-the-shelf external components.

please see circuit diagram and read more source.
http://www.national.com/pf/LM/LM2673.html

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Be the first to comment - What do you think? Posted by admin - May 20, 2008 at 5:45 pm

Categories: Power supply, Switching power supply Tags: 5V, dc converter step down voltage, LM2673, Switching power supply

5VDC Switching regulator from 9V battery by LT1073-5

When i want 5V switching regulator (mini project),so i am used input is 9V battery.
The good circuit for work is the IC LT1073-5 (see detail in www.linear.com), it out put 100mA current.
The zener diode is 1N5818,L1 = 100uH
Detail more please see in image.

Be the first to comment - What do you think? Posted by admin - May 19, 2008 at 9:52 am

Categories: DC converter, Switching power supply Tags: 5V, dc converter step down voltage, Switching power supply

5 volts from the Mains by LM2595T-5.0

Sometimes we would like to hide certain equipment to prevent cluttering up our living room or any interior in general. A number of devices lend themselves to be built into a wall adapter. Think of a remote-control extender, for example.All these devices need a power supply and we would prefer to use the mains so that no external connections are required for the power supply.The power supply in this article is intended for exactly these situations, namely converting the mains voltage to a 5-V power supply voltage. The accompanying PCB fits exactly in a round wall socket enclosure.
part
R1 = 10k
R2 = 39k
R3,R4 = 150k
R5 = 33
Capacitors:
C1 = 220ÂµF 63V radial
C2 = 120ÂµF 25V radial
C3 = 100nF
Semiconductors:
B1 = B250C1500, round case
D1 = zener diode 39V, 0.5W
D2 = MBR745
IC1 = LM2595T-5.0
T1 = BC547B
T2 = IRF730 or BUZ41A
Miscellaneous:
F1 = fuse, 100 mAT (slow), with PCB mount holder and cap
K1 = 2-way PCB terminal block, lead pitch 7.5mm
L1 = 100ÂµH choke
PCB, available via The PCBShop