9v pp3 battery question

How can i get 5v for my circuit from a 9v pp3 battery??

How much current does the circuit need? An 78L05 will probably do it, or maybe a voltage divider.

Im unsure of the current requirements........ the circuit is quite simple, it will just be an encoder chip with an infra red led attached for transmission

carlosthejackle2001 said:

Im unsure of the current requirements........ the circuit is quite simple, it will just be an encoder chip with an infra red led attached for transmission

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A 78L05 should be fine, but ensure that you have a good size electrolytic on the supply to the LED - these are often pulsed at high currents (often over an amp), and rely on a good short term power source - if the capacitor is too small the 78L05 could current limit.