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TPS79518DCQR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS79518DCQR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 23 page www.ti.com FEATURES DESCRIPTION APPLICATIONS 0 10 20 30 40 50 60 70 80 1 10 100 1k 10k 100k 1M 10M TPS79530 RIPPLEREJECTION vs FREQUENCY VIN =4V COUT =10 mF CNR =0.01 mF IOUT =1mA IOUT =500mA Frequency (Hz) Frequency(Hz) 0 0.1 0.2 0.3 0.4 0.5 100 1k 10k 100k IOUT =1mA VIN =5.5V COUT =2.2 mF CNR =0.1 mF IOUT =0.5A TPS79530 OUTPUT SPECTRALNOISEDENSITY vs FREQUENCY 1 2 3 4 5 DCQ PACKAGE SOT223-6 (TOPVIEW) NR/FB OUT GND IN EN 6 GND EN NC GND NR/FB 8 7 6 5 IN IN OUT OUT 1 2 3 4 DRB PACKAGE 3mm x 3mm SON (TOP VIEW) TPS795xx SLVS350G – OCTOBER 2002 – REVISED JULY 2006 ULTRALOW-NOISE, HIGH-PSRR, FAST, RF, 500-mA LOW-DROPOUT LINEAR REGULATORS • 500-mA Low-Dropout Regulator With Enable The TPS795xx family of low-dropout (LDO), low-power linear voltage regulators features high • Available in Fixed and Adjustable (1.2-V to power-supply rejection ratio (PSRR), ultralow noise, 5.5-V) Versions fast start-up, and excellent line and load transient • High PSRR (50 dB at 10 kHz) responses in small outline, SOT223-6 and 3 x 3 SON • Ultralow Noise (33 µV RMS, TPS79530) packages. Each device in the family is stable with a small 1- µF ceramic capacitor on the output. The • Fast Start-Up Time (50 µs) family uses an advanced, proprietary BiCMOS • Stable With a 1- µF Ceramic Capacitor fabrication process to yield extremely low dropout • Excellent Load/Line Transient Response voltages (for example, 110 mV at 500 mA). Each device achieves fast start-up times (approximately 50 • Very Low Dropout Voltage (110 mV at Full µs with a 0.001-µF bypass capacitor) while Load, TPS79530) consuming very low quiescent current (265 µA, • 6-Pin SOT223 and 3 × 3 SON Packages typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS79530 exhibits approximately 33 • RF: VCOs, Receivers, ADCs µV RMS of output voltage noise at 3.0 V output with a 0.1- µF bypass capacitor. Applications with analog • Audio components that are noise-sensitive, such as • Bluetooth ®, Wireless LAN portable RF electronics, benefit from the high-PSRR • Cellular and Cordless Telephones and low-noise features, as well as from the fast • Handheld Organizers, PDAs response time. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Bluetooth is a registered trademark of Bluetooth SIG, Inc. All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2002–2006, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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