LM117 3.3V PDF

Buy LMMP – TEXAS INSTRUMENTS – Fixed LDO Voltage Regulator, 15V in, V Dropout, V/mA out, SOT at Farnell element order. The ohm resistor is only required for the V version of the LD to maintain minimum regulation, with a 10 mA minimum load. This is the basic LDV33 voltage regulator, a low drop positive regulator with a V fixed output voltage. This fixed regulator provides a great amount.

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voltage – Resistors values to use with LM – Electrical Engineering Stack Exchange

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. I am using ldv33 with Vin as 4.

I am actually getting this 33.3v without using any capacitors or resistors.

The datasheet has suggested to use two capacitors, 0. I can understand the usage of capacitors but not sure about the resistor used here. Could someone tell that if there is any advantage of using the resistor here? When I remove the resistor and leave the capacitors, it does go back to 3.

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The ohm resistor is only required for the 1.

It’s unneeded for the 3. See the V O spec on the datasheet, for the 3.

The datasheet has a spec section for multiple output voltages. That said.33v ohm resistor is only a 27 mA load at 3. Try a larger load like mA and check to see if the voltage is still within range. Make sure your capacitors are as close to the LDO as possible.

You may need a larger input capacitor depending on how far away your power supply is. If it’s not within range at a higher load up to mA it may be bad. And this is for the ST branded LD, other brands may have different requirements or specs. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Home 33.3v Tags Users Unanswered.

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3.3V Regulator Board Using LM1117-3.3V IC

LDv33 to get 3. When I follow the circuit, I am getting Vout as 3. When I remove the resistor, I am getting the expected Vout 3. There’s no resistor in your schematic. Sign up or log in Sign up using Google.

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Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policy lm1177, and that your continued use of the website is subject to these policies.