MB39A105
■BLOCK DIAGRAM
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| VCC | SCPOD |
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| 3 | 4 |
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−INE | 1 | VREF |
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| Error Amp | PWM |
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| − |
| + Comp. | Drive |
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| + |
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| − | Nch | 5 | OUT |
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| (0.5 V ± 1%) |
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FB | 8 |
| VREF |
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| IO = 400 mA |
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| (0.7 V) | 6 | GND | ||
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| SCP |
| at VCC = 3.3 V | |||
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| Comp. | + | (0.3 V) |
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| − |
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| (0.9 V) |
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CSCP | 2 |
| + | S | Q |
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| (1.0 V) | − |
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| RT Current |
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| R |
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| OSC |
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| UVLO |
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| bias | Power |
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| VREF | ON/OFF |
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| VREF | CTL |
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| L : UVLO release |
| (1.27 V) |
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| ±10% |
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| 7 |
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| RT |
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4
