TPS79230DBVTG4 Description
The TPS792xx family of low-dropout (LDO) low-power linear voltage regulators features a high power supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in a small outline, SOT23, package. Each device in the family is stable, with
a small 1-μF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout
voltages (e.g., 55 mV at 100 mA, TPS79230). 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 TPS79228 exhibits approximately 27 μVRMS of output voltage noise 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.
TPS79230DBVTG4 Features
100-mA Low-Dropout Regulator With EN
Available in 2.5-V, 2.8-V, 3-V, and Adj.
High PSRR (75 dB at 10 kHz)
Ultralow Noise (27 μV)
Fast Start-Up Time (50 μs)
Stable With Any 1-μF Ceramic Capacitor
Excellent Load/Line Transient
Very Low Dropout Voltage
(55 mV at Full Load, TPS79230)
5-Pin SOT23 (DBV) Package
TPS791xx Provides EN Options
TPS79230DBVTG4 Applications
Cellular and Cordless Telephones
VCOs
RF
Bluetooth, Wireless LAN
Handheld Organizers, PDA
