TPS78625DCQR

超低噪声，高PSRR ，快速射频， 1.5 -A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, TPS78630

• 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