TPS79325DBVR

Product Summary

The TPS79325DBVR low-dropout (LDO) low-power linear voltage regulator features high power-supply rejection ratio (PSRR), ultralow-noise, fast start-up, and excellent line and load transient responses in NanoStar wafer chip scale and SOT23 packages. 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. The TPS79325DBVR in the family is stable, with a small 2.2-μF ceramic capacitor on the output. The TPS79325DBVR uses an advanced. proprietary BiCMOS fabrication process to yield extremely low dropout voltages (e.g., 112 mV at 200 mA, TPS79330). The device achieves fast start-up times (approximately 50 μs with a 0.001-μF bypass capacitor) while consuming very low quiescent current (170 μA typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 μA. The TPS79325DBVR exhibits approximately 32 μVRMS of output voltage noise at 2.8-V output with a 0.1-μF 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.

Parametrics

TPS79325DBVR absolute maximum ratings: (1)VIN range -0.3 V to 6 V; (2)VEN range -0.3 V to VIN + 0.3 V; (3)VOUT range -0.3 V to 6 V; (4)Peak output current Internally limited; (5)ESD rating, HBM 2 kV; (6)ESD rating, CDM 500 V; (7)Continuous total power dissipation See Dissipation Ratings Table; (8)Junction temperature range, DBV package -40℃ to 150℃; (9)Junction temperature range, YEQ package -40℃ to 125℃; (10)Storage temperature range, Tstg -65℃ to 150℃.

Features

TPS79325DBVR features: (1)200mA RF Low-Dropout Regulator With Enable; (2)Available in 1.8-V, 2.5-V, 2.8-V, 2.85-V, 3-V, 3.3-V, 4.75-V, and Adjustable (1.22-V to 5.5-V); (3)High PSRR (70 dB at 10 kHz); (4)Ultralow-Noise (32 μVRMS, TPS79328); (5)Fast Start-Up Time (50 μs); (6)Stable With a 2.2-μF Ceramic Capacitor; (7)Excellent Load/Line Transient Response; (8)Very Low Dropout Voltage (112 mV at Full exLoad, TPS79330); (9)5- and 6-Pin SOT23 (DBV) and NanoStar Wafer Chip Scale (YEQ) Packages.

Diagrams