This device is designed to have a fast transient response and be stable with 10 µF capacitors. This combination provides high performance at a reasonable cost.
Since the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV at an output current of 1 A for the TPS76850) and is directly proportional to the output current. Additionally, because the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 85 µA over the full range of output current, 0 mA to 1 A). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a shutdown mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C.
Power good (PG) is an active high output, which can be used to implement a power-on reset or a low-battery indicator.
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| Output options | Adjustable Output, Fixed Output |
| Iout (max) (A) | 1 |
| Vin (max) (V) | 10 |
| Vin (min) (V) | 2.7 |
| Vout (max) (V) | 5.5 |
| Vout (min) (V) | 1.2 |
| Fixed output options (V) | 1.5, 1.8, 2.5, 2.7, 2.8, 3, 3.3, 5 |
| Noise (µVrms) | 55 |
| Iq (typ) (mA) | 0.08 |
| Thermal resistance θJA (°C/W) | 33, 37.9, 113.6 |
| Rating | Catalog |
| Load capacitance (min) (µF) | 10 |
| Regulated outputs (#) | 1 |
| Features | Enable, Power good |
| Accuracy (%) | 2 |
| PSRR at 100 KHz (dB) | 29 |
| Dropout voltage (Vdo) (typ) (mV) | 230 |
| Operating temperature range (°C) | -40 to 125 |
| HTSSOP (PWP) | 20 | 41.6 mm² 6.5 x 6.4 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
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