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| C1 | C2 | C3 | R8 |
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| APPLICATION | |
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| 0.1 | ∝F 4.7 ∝F4.7 ∝F | 100 kΩ |
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| Q1 |
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| EXAMPLE |
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| 3 |
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R5 | R6 |
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| VCC |
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| L1 |
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43 kΩ 330 kΩ −INE |
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A |
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| 6.8 ∝H |
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R7 | VREF |
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| PWM |
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| Error Amp |
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22 kΩ |
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| R4 |
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| OUT | D1 |
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| Nch |
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| 51 kΩ |
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| (0.5 V ± 1%) | − |
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| 5 | Q2 |
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| C9 |
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| 0.1 ∝F | 8 |
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| IO = 400 mA |
| GND | 4.7 ∝F | 4.7 ∝F 4.7 | ∝F 0.1 | ∝F |
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| (0.7 V) |
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| + | (0.3 V) |
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| − |
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| (0.9 V) |
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VIN | CSCP | 2 |
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C8 |
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(1.8 V to |
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0.22 ∝F |
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6.0 V) |
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| UVLO |
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| Power |
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| VREF | VREF | ON/OFF |
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| CTL |
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| L : UVLO release | ±10% |
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| 7 | RT |
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| R1 |
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| MB39A105 |
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| ON/OFF CTL |
| 7.5 kΩ |
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| Q3 |
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| (L : OFF, H : ON) | R11 |
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| 100 kΩ |
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17 |
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