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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| Part number | 立即下单 | Output options | Iout (Max) (A) | Vin (Max) (V) | Vin (Min) (V) | Vout (Max) (V) | Vout (Min) (V) | Fixed output options (V) | Package Group | Features | Regulated outputs (#) | Operating temperature range (C) | Thermal resistance θJA (°C/W) | Noise (uVrms) | Approx. price (US$) | Rating | PSRR @ 100 KHz (dB) | Accuracy (%) | Dropout voltage (Vdo) (Typ) (mV) | Iq (Typ) (mA) | Package size: mm2:W x L (PKG) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TPS768 |
|
Adjustable Output
Fixed Output |
1 | 10 | 2.7 | 5.5 | 1.2 |
1.5
1.8 2.5 2.7 2.8 3 3.3 5 |
HTSSOP | 20
SOIC | 8 |
Enable
Power Good |
1 | -40 to 125 | 33 | 55 | 1.19 | 1ku | Catalog | 29 | 2 | 230 | 0.08 |
20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) |
