超低噪声，高PSRR ，快速射频1.5低压差线性稳压器 ULTRALOW-NOISE, HIGH PSRR, FAST RF 1.5 A LOW-DROPOUT LINEAR REGULATORS
DESCRIPON
The TPS786xx 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 small outline, SOT223-6 and DDPAK-5 packages. Each device in the family is stable, with a small 1-µF ceramic capacitor on the output. The family uses an advanced, roprietary BiCMOS fabrication process to yield extremely low dropout voltages for example, 390 mV at 1.5 A.
FEATURES
• 1.5-A Low-Dropout Regulator With Enable
• Available in Fixed and Adjustable 1.2-V to 5.5-V Output Versions
• High PSRR 49 dB at 10 kHz
• Ultralow Noise 48 µVRMS,
• Fast Start-Up Time 50 µs
• Stable With a 1-µF Ceramic Capacitor
• Excellent Load/Line Transient Response
• Very Low Dropout Voltage 390 mV at Full Load, TPS78630
• 6-Pin SOT223 and 5-Pin DDPAK Package
APPLICATIONS
• RF: VCOs, Receivers, ADCs
• Audio
• Bluetooth®
, Wireless LAN
• Cellular and Cordless Telephones
• Handheld Organizers, PDAs