1.3 Electrical Parameters and Values
TA = 25°C with VIN = VEN = 5V; IOUT = 10 mA, VOUT = 1.8V. Bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted. See Note 1.
| Parameter | Sym. | Min. | Typ. | Max. | Units | Conditions |
|---|---|---|---|---|---|---|
| Supply Voltage Range | VIN | 3.0 | — | 5.5 | V | AVIN, PVIN pins |
| Undervoltage Lockout Threshold | VUVLO_TH | — | 2.85 | — | V | Turn-on |
| Undervoltage Lockout Hysteresis | VUVLO_HYS | — | 100 | — | mV | — |
| Quiescent Current | IQ | — | 1 | — | mA | IOUT = 0A, not switching, open loop |
| Turn-on Time | tON | — | 200 | 500 | μs | VOUT to 95% of nominal |
| Shutdown Current | ISD | — | 30 | 50 | μA | VEN = 0V |
| Feedback Voltage | VFB | 0.975 | 1 | 1.025 | V | ±2.5% |
| Feedback Current | IFB | — | 5 | — | nA | — |
| Dropout Voltage | VIN – VOUT | — | 0.85 | 1.2 | V | ILOAD = 2.2A; VOUT = 3V |
| Current Limit | ILIM | 3 | 5 | — | A | VFB = 0.9 × VNOM |
| Output Voltage Load Regulation | ΔVOUT/VOUT | — | 0.3 | 1 | % | VOUT = 1.8V, 10 mA to 2.2A |
| Output Voltage Line Regulation | ΔVOUT / (VOUT × ΔVIN) | — | 0.35 | 0.5 | %/V | VOUT = 1.8V, VIN from 3.0V to 5.5V |
| Output Ripple | ΔVOUT | — | 2 | — | mV | ILOAD = 1.5A, COUTLDO = 20 µF, COUTSW = 20 µF, LPF = 25 kΩ |
| Over-Temperature Shutdown | TSD | — | 150 | — | °C | — |
| Over-Temperature Shutdown Hysteresis | TSD_HYS | — | 15 | — | °C | — |
| Enable Input (see Note 2) | ||||||
| Enable Input Threshold | VIN(EN) | 0.90 | 1 | 1.1 | V | Regulator enable |
| Enable Hysteresis | HYSEN | 20 | 100 | 200 | mV | — |
| Enable Input Current | IEN | — | 0.03 | 1 | μA | — |
Notes:
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