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RMish.2
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2022-05-19
2023-06-14
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We design a buck converter on L4971D and expected output 3.3V but only get 0.65V with 48VDC Input.we tune OSC pin resistor up to 5K then output is 3.3V but when input decreases below 35VDC then output again 0.65 to 1.2V.
2022-05-19
R3 = zero ohm C5, R4 = DNM
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