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TPS79633 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS79633 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 18 page www.ti.com FEATURES DESCRIPTION APPLICATIONS 1 KTT (DDPAK) PACKAGE (TOP VIEW) 2 3 4 5 EN IN GND OUT 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Frequency (Hz) 100 10k 100k 1k IOUT = 1 mA TPS79630 OUTPUT SPECTRAL NOISE DENSITY vs FREQUENCY IOUT = 1.5 A VIN = 5.5 V COUT = 2.2 µF CNR = 0.1 µF 0 10 20 30 40 50 60 70 80 Frequency (Hz) 1 10k 10M 1k IOUT = 1 mA TPS79630 RIPPLE REJECTION vs FREQUENCY IOUT = 1 A VIN = 4 V COUT = 10 µF CNR = 0.01 µF 10 100 100k 1M EN NC GND NR 8 7 6 5 IN IN OUT OUT 1 2 3 4 DRB PACKAGE 3 x 3 SON (TOP VIEW) NR/FB 1 2 3 4 5 DCQ PACKAGE SOT223-6 (TOP VIEW) NR/FB OUT GND IN EN 6 GND TPS79601, TPS79618, TPS79625 TPS79628, TPS79630, TPS79633 SLVS351D – SEPTEMBER 2002 – REVISED OCTOBER 2004 ULTRALOW-NOISE, HIGH PSRR, FAST RF 1-A LOW-DROPOUT LINEAR REGULATORS • 1-A Low-Dropout Regulator With Enable The TPS796xx family of low-dropout (LDO) low-power linear voltage regulators features high • Available in 1.8-V, 2.5-V, 2.8-V, 3-V, 3.3-V, and power supply rejection ratio (PSRR), ultralow-noise, Adjustable (1.2-V to 5.5-V) fast start-up, and excellent line and load transient • High PSRR (53 dB at 10 kHz) responses in small outline, 3 x 3 SON, SOT223-6, • Ultralow-Noise (40 µVRMS, TPS79630) and 5-pin DDPAK packages. Each device in the family is stable with a small 1-µF ceramic capacitor • Fast Start-Up Time (50 µs) on the output. The family uses an advanced, pro- • Stable With a 1-µF Ceramic Capacitor prietary BiCMOS fabrication process to yield ex- • Excellent Load/Line Transient Response tremely low dropout voltages (e.g., 250 mV at 1 A). Each device achieves fast start-up times • Very Low Dropout Voltage (250 mV at Full (approximately 50 µs with a 0.001-µF bypass capaci- Load, TPS79630) tor) while consuming very low quiescent current • 3 x 3 SON, 6-Pin SOT223-6, and (265 µA typical). Moreover, when the device is placed 5-Pin DDPAK Packages in standby mode, the supply current is reduced to less than 1 µA. The TPS79630 exhibits approximately 40 µVRMS of output voltage noise at 3.0-V output, with • RF: VCOs, Receivers, ADCs a 0.1-µF bypass capacitor. Applications with analog components that are noise sensitive, such as portable • Audio RF electronics, benefit from the high PSRR, low • Bluetooth™, Wireless LAN noise features, and the fast response time. • Cellular and Cordless Telephones • Handheld Organizers, PDAs 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 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 © 2002–2004, 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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