The LA5754 by Sanyo Semicon Device is a Separately-Excited Step-Down Switching Regulator. Below is the official datasheet preview.
| Part number | LA5754 |
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| Manufacturer | Sanyo Semicon Device |
| File Size | 100.75 KB |
| Description | Separately-Excited Step-Down Switching Regulator |
| Datasheet |
 LA5754_SanyoSemiconDevice.pdf
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of Functional Settings 1.Start delay function The SS pin has the internally-connected 22µA (typ) constant-current supply.When the voltage of SS pin exceeds the threshold voltage, the regulator starts operation.As the threshold is 0.62V(typ), the start delay time can be calculated as follows: ex.For setting at 1µF Td = C × V 1µ × 0.62 = = 28.2 msec 22µ i 1.5V 2.Soft start function The internal PWM waveform has the voltage value as shown in the right.If down-conversion from the voltage of VIN
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