Showing posts with label 5v. Show all posts
Showing posts with label 5v. Show all posts
Friday, January 10, 2014
Build a 3V Battery To 5V Dc Dc Converter Circuits Diagram
Build a 3V Battery To 5V Dc/Dc Converter Circuits Diagram. A common power-supply requirement involves converting a 2.4- or 3-V battery voltage to a 5-V logic supply. This circuit converts 3 V to 5 V at 40 mA with 85% efficiency. When Ic (pin 6) is driven low, the output voltage will be the battery voltage minus the drop across diode Dl.
The optional circuitry that uses CI, R3, and R4 lowers the oscillator frequency when the battery voltage falls to 2.0 V. This lower frequency maintains the output-power capability of the circuit by increasing the peak inductor current, which compensates for the reduced battery voltage.
3V Battery To 5V Dc/Dc Converter Circuits Diagram
Thursday, December 19, 2013
5V Power Supply Using LTM8021
This 5v power supply circuit is designed using the LTM8021 and will provide a maximum current up to 500mA. Almost all required parts are included in the LTM8021 package. This 5v power supply circuit based on the LTM8021 operate over a input voltage range between 3V and 36V .The LTM8021 supports an output voltage range of 0.8V to 5V, set by a single resistor. Only an output and bulk input capacitor are needed to finish the design.
5V Power Supply Circuit diagram
5V Power Supply Circuit diagram
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