What are the 5-pin frequency-voltage conversion chips?

That patch is voltage-converted, and it is also in the mobile phone.

But LM33 1, the classical circuit index 1KHz/V, and the high-precision circuit can reach 100KHz.

But it is relatively old, and the retail price of the market is about 8\9 yuan /pcs.

I also recommend LM2576 as a five-pin power chip. The LM2576 series includes LM2576 (maximum input voltage 40V) and LM2576HV (maximum input voltage 60V). All series products are available in 3.3V(-3.3), 5V(-5.0), 12V(- 12), 15V(- 15) and adjustable (-ADJ) products. In addition, the chip also provides an external control pin for the working state.

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