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Partname: | STK740-471 |
Description: | 3.3V/5A Single Output Separate Excitation Chopper Regulator |
Manufacturer: | SANYO Electric Co., Ltd. |
Datasheet: | PDF (134K). Click here to download *) |
The STK740-441 is a separate-excitation step-down chopper regulator hybrid IC for the secondstage circuit and optimal as a 3.3V local power supply for use in logic circuit that includes both 5V and 3.3V systems. This IC incorporates in the package all the necessary circuits for a chopper regulator including power switch, error amplifier, soft start, shutdown type output short protection, low-voltage malfunction prevention, on/off, and snubber circuits. Therefore, external components required are input and output capacitors and choke coil only and this allows this IC to be used to construct a large-current (5A) chopper regulator as if a 3-pin regulator were used. |
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