TPS79730 Datasheet | Texas Instruments

Product Folder Sample & Buy Technical Documents Tools & Software Support & munity TPS79718, TPS797285, TPS79730, TPS79733 SLVS332J - MARCH 2001 - REVISED DECEMBER 2016 TPS797xx Ultra-Low IQ, 50-m A Low-Dropout Linear Regulators With Power Good Output in SC70 Package 1 Features - 1 50-m A Low-Dropout Regulator - Ultra-Low 1.2-µA Quiescent Current at 10 m A - 5-Pin SC70 (DCK) Package - Integrated Power Good Output - Stable With Any Capacitor Greater Than 0.47 µF - Typical Dropout Voltage of 105 m V at 10 m A (TPS79733) - Over-Current Limitation - Operating Junction Temperature Range of - 40°C to 85°C 2 Applications - Battery-Powered Microcontrollers and Microprocessors 3 Description The TPS797xx family of low-dropout voltage regulators (LDOs) offers the benefits of low-dropout voltage and ultra-low-power operation. The device is stable with any capacitor greater than 0.47-µF. Therefore, implementations of this device require very little board space due to the miniaturized packaging and potentially small output capacitor. In addition, the family includes an integrated open drain active-high power good (PG) output. Intended for use in microcontroller-based, battery-powered applications, the TPS797xx family low dropout and ultra-low-power operation result in a significant increase in system battery operating life. The small packaging minimizes consumption of board space. The device is enabled when the applied voltage exceeds the minimum input voltage. The usual PNP pass transistor has been replaced by a PMOS pass element.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, 105 m V at 10-m A of load current), and is directly proportional to the load current. The quiescent current is ultra-low (1.2-µA, typically) and is stable over the entire range of output load current (0 m A to 50 m A). When properly configured with a pullup resistor, the PG output can implement a power-on reset or low-battery indicator. Device...