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Actual Size (3,00 mm x 3,00 mm)
TPS79201, TPS79225
Actual Size (3,00 mm x 3,00 mm)
TPS79228, TPS79230
SL...
www.ti.com
Actual Size (3,00 mm x 3,00 mm)
TPS79201, TPS79225
Actual Size (3,00 mm x 3,00 mm)
TPS79228, TPS79230
SLVS337B – MARCH 2001 – REVISED MAY 2002
ULTRALOW-NOISE, HIGH PSRR, FAST RF 100-mA LOW-DROPOUT LINEAR REGULATORS
FEATURES
D 100-mA Low-Dropout Regulator With EN D Available in 2.5-V, 2.8-V, 3-V, and Adj. D High PSRR (75 dB at 10 kHz) D Ultralow Noise (27 µV) D Fast Start-Up Time (50 µs) D Stable With Any 1-µF Ceramic Capacitor D Excellent Load/Line Transient D Very Low Dropout
Voltage
(55 mV at Full Load, TPS79230)
D 5-Pin SOT23 (DBV) Package D TPS791xx Provides EN Options
APPLICATIONS
D Cellular and Cordless Telephones D VCOs D RF D Bluetooth, Wireless LAN D Handheld Organizers, PDA
DESCRIPTION
The TPS792xx 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 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 Bi
CMOS 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 µVR...