TPS79301DBVR Power Path Management IC LDO Voltage Regulators 200mA
Adj Hi PSRR 1 Features - 200-mA RF Low-Dropout Regulator With Enable
Available in Fixed-Voltage Versions from 1.8 V to 4.75 V and
Adjustable (1.22 V to 5.5 V) High PSRR (70 dB at 10 kHz) Low Noise (32 μVRMS, TPS79328) Fast Start-Up Time (50 μs) Stable With a 2.2-μF Ceramic Capacitor Excellent Load and Line Transient Response Very Low Dropout Voltage (112 mV at 200 mA, TPS79330) 5- and 6-Pin SOT23 (DBV) and NanoStar Wafer Chip Scale (YZQ)
Packages
2 Applications RF: VCOs, Receivers, ADCs Audio Cellular and Cordless Telephones Bluetooth®, Wireless LAN Handheld Organizers, PDAs
3 Description The TPS793 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 in NanoStarTM wafer chip scale and SOT23
packages. NanoStar packaging gives an ultrasmall footprint as well
as an ultralow profile and package weight, making these devices
ideal for portable applications such as handsets and PDAs. Each
device in the family is stable, with a small, 2.2-μF ceramic
capacitor on the output. The TPS793 family uses an advanced,
proprietary BiCMOS fabrication process to yield extremely low
dropout voltages (for example, 112 mV at 200 mA, TPS79330). Each
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
TPS79328 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. Device Information |
