TPS79015 Datasheet | Texas Instruments

description The TPS790xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, ultralow-power operation, low-output noise, and miniaturized packaging. These regulators feature low-dropout voltages and ultralow quiescent current pared to conventional LDO regulators. An internal resistor, in conjunction with an external bypass capacitor, creates a low-pass filter to reduce the noise. The TPS79030 exhibits only 56 µVRMS of output voltage noise using 0.01 µF bypass and 10 µF output capacitors. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS790xx series devices are ideal for micropower operations, low output noise, and where board space is limited. The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low, typically 57 m V at 50 m A of load current (TPS79030), and is directly proportional to the load current. The quiescent current is ultralow (17 µA typically) 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 ultralowpower operation result in a significant increase in system battery operating life. Ground Current - µA DBV PACKAGE (TOP VIEW) IN 1 5 OUT EN 3 4 BYPASS TPS79030 GROUND CURRENT vs JUNCTION TEMPERATURE 22 VI = 4 V 21 Co = 4.7 µF IO = 50 m A 19 IO = 1 m A 18 - 40 - 25 - 10 5 20 35 50 65 80 95 110 125 TJ - Junction Temperature - °C 1200 1000 TPS78930 OUTPUT SPECTRAL NOISE DENSITY vs FREQUENCY VI = 4 V Co = 4.7 µF C(byp) = 0.1 µF IO = 50 m A 400 IO = 1 m A Output Spectral Noise Densityµ- V/ Hz 0 100 1k 10k 100k f - Frequency - Hz Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto...