Single Output LDO, 200mA, Adj.(1.5 To 5.5V), High PSRR, Low Noise

The TPS730xx family of low-dropout (LDO) low-power Linear Voltage Regulators features high power-supply rejection ratio (PSRR), ultralow-noise, fast start-up, and excellent line and load transient responses a small SOT23 package. NanoStar packaging gives an ultrasmall footprint as well as an ultralow profile and package weight, making it ideal for portable applications such as handsets and PDAs. Each device in the family is stable, with a small 2.2F ceramic capacitor on the output. The TPS730xx family uses an advanced, proprietary BiCMOS fabrication process to yield low dropout voltages (e.g., 120mV at 200mA, TPS73030 . Each device achieves fast start-up times (approximately 50s with a 0.001F bypass capacitor) while consuming low quiescent current (170A typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1A. The TPS73018 exhibits approximately 23VRMS of output voltage noise at 2.8V output with a 0.01F bypass capacitor. Applications with Analog components that are noise-sensitive, such as portable RF electronics, benefit from the high PSRR and low-noise features as well as the fast response time.
By Texas Instruments