文档介绍：TPS79301-Q1, TPS79318-Q1, TPS79325-Q1
TPS79328-Q1, TPS793285-Q1, TPS79330-Q1
TPS79333-Q1, TPS793475-Q1
S162G –APRIL 2003–REVISED SEPTEMBER 2011
ULTRALOW-NOISE, HIGH-PSRR, FAST RF 200-mA
LOW-DROPOUT LINEAR REGULATORS
Check for Samples: TPS79301-Q1, TPS79318-Q1, TPS79325-Q1, TPS79328-Q1, TPS793285-Q1, TPS79330-Q1, TPS79333-Q1
1FEATURES APPLICATIONS
2• Qualified For Automotive Applications • VCOs
• 200-mA Low-Dropout Regulator With EN • RF
• Available in -V, -V, -V, -V, 3-V, • Bluetooth™
-V, -V, and Adjustable Options
• High PSRR (70 dB at 10 kHz) DBV PACKAGE
(TOP VIEW)
• Ultralow Noise (32 μV)
IN 1 5 OUT
• Fast Start-Up Time (50 μs)
2
• Stable With a -μF Ceramic Capacitor GND
• Excellent Load/Line Transient EN 3 4 BYPASS
• Very Low Dropout Voltage Fixed Option
(112 mV at Full Load, TPS79330)
DBV PACKAGE
• 5-Pin SOT23 (DBV) Package (TOP VIEW)
IN 1 6 OUT
GND 2 5 FB
EN 3 4 BYPASS
Adjustable Option
DESCRIPTION
The TPS793xx 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 -μF ceramic capacitor on the
output. The TPS793xx family uses an advanced, proprietary, BiCMOS fabrication process to yield extremely low
dropout voltages (., 112 mV at 200 mA, TPS79330). Each device achieves fast start-up times (approximately
50 μs with a -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 with a -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