TPS79625-Q1 Datasheet | Texas Instruments

TPS796xx-Q1 .ti. SBVS154 - MARCH 2012 Ultralow-Noise, High-PSRR, Fast, RF, 1-A LOW-DROPOUT LINEAR REGULATORS Check for Samples: TPS796xx-Q1 Features - 23 Qualified for Automotive Applications - AEC-Q100 Test Guidance With the Following Results: - Device Temperature Grade 1: - 40°C to 125°C Ambient Operating Temperature Range - Device HBM ESD Classification Level H2 - Device CDM ESD Classification Level C3A - 1-A Low-Dropout Regulator With Enable - Available in Fixed and Adjustable (1.2 V to 5.5 V) Versions - High PSRR (53 d B at 10 k Hz) - Ultralow-Noise (40 μVRMS, TPS79630-Q1) - Fast Start-Up Time (50 μs) - Stable With a 1-μF Ceramic Capacitor - Excellent Load/Line Transient Response - Very Low Dropout Voltage (250 m V at Full Load, TPS79630-Q1) - SOT223-6 Package APPLICATIONS - RF: VCOs, Receivers, ADCs - Audio - Bluetooth™, Wireless LAN DESCRIPTION The TPS796xx-Q1 family of low-dropout (LDO), lowpower, linear voltage regulators Features high powersupply rejection ratio (PSRR), ultralow-noise, fast start-up, and excellent line and load transient responses in a small-outline SOT223-6 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 (for example, 250 m V at 1 A). Each device achieves fast start-up times (approximately 50 μs with a 0.001-μF bypass capacitor) while consuming very low quiescent current (265 μA typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 μA. The TPS79630-Q1 exhibits approximately 40 μVRMS of output voltage noise at 3-V output, with a 0.1-μF bypass capacitor. Applications with analog ponents that are noisesensitive, such as portable RF electronics, benefit from the high-PSRR, low-noise Features and the fast response...