What are the differences between the new HT71XX-1 series of voltage regulators and the old HT71XX series that they replace?
Answer The old HT71XX series of voltage regulators have an output voltage tolerance of 5% whose smallest SMD package is the SOT89 type. The new HT71XX-1 series have an output voltage tolerance of 3% whose smallest SMD package is the SOT25 type. The functional features of the two series of devices are identical so the new devices can be used as direct replacements for the older devices.
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