TPS76428DBVR

低功耗低噪声150 mA低压降线性稳压器 LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS

The TPS764xx family of low-dropout LDO voltage regulators offers the benefits of a low noise, low-dropout voltage, low-power operation, and miniaturized package. Additionally, they feature low quiescent current when compared to conventional LDO regulators. Offered in 5-terminal small outline integrated-circuit SOT-23 package, the TPS764xx series devices are ideal for low-noise applications, cost-sensitive designs and applications where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual pnp pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low\x97typically 300 mV at 150 mA of load current TPS76433\x97and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is very low 140 uA maximum and is stable over the entire range of output load current 0 mA to 150 mA. Intended for use in portable systems such as laptops and cellular phones, the low-dropout voltage feature and low-power operation result in a significant increase in system battery operating life.

The TPS764xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA maximum at TJ = 25°C. The TPS764xx is offered in 2.5-V, 2.7-V, 2.8-V, 3.0-V, and 3.3-V fixed-voltages. View datasheet View product folder