TPS77018 Datasheet | Texas Instruments

n The TPS770xx family of low-dropout (LDO) voltage regulators offers the benefits of low dropout voltage, ultralow-power operation, and miniaturized packaging. These regulators feature low dropout voltages and ultralow quiescent current pared to conventional LDO regulators. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS770xx series devices are ideal for micropower operations and where board space is at a premium. Ground Current - µ A DBV PACKAGE (TOP VIEW) NC/FB TPS77033 GROUND CURRENT vs FREE-AIR TEMPERATURE VI = 4.3 V 21 CO = 4.7 µF IO = 50 m A IO = 0 m A A bination of new circuit design and process 16 innovation has enabled the usual PNP pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element - 60 - 40 - 20 0 20 40 60 80 100 120 140 behaves as a low-value resistor, the dropout - Free-Air Temperature - °C voltage is very low - typically 35 m V at 50 m A of load current (TPS77050) - and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 µA maximum) and is stable over the entire range of output load current (0 m A to 50 m A). Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life. The TPS770xx also Features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 µA typical at TJ = 25°C. The TPS770xx is offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V fixed-voltage versions and in a variable version (programmable over the range of 1.2 V to 5.5 V). Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the...