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.
All trademarks are the property of their respective owners.
|Iout (Max) (A)|
|Vin (Max) (V)|
|Vin (Min) (V)|
|Vout (Max) (V)|
|Vout (Min) (V)|
|Fixed output options (V)|
|Regulated outputs (#)|
|Operating temperature range (C)|
|Thermal Resistance θJA (°C/W)|
|Approx. price (US$)|
|Output capacitor type|
|PSRR @ 100 KHz (dB)|
|Vdo (Typ) (mV)|
|Iq (Typ) (mA)|
|Package size: mm2:W x L (PKG)|
HTSSOP | 20
SOIC | 8
|-40 to 125|
|1.19 | 1ku|
20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)