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TPS72018YZUR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS72018YZUR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page 1 FEATURES DESCRIPTION APPLICATIONS BIAS IN EN GND OUT C3 B2 A3 C1 A1 TPS720xx YZUPACKAGE 1,33mmx0,96mmWCSP-5 (TOPVIEW) IN GND BIAS 6 5 4 OUT NC EN 1 2 3 Thermal Pad TPS720xx DRVPACKAGE 2mmx2mmSON-6 (TOPVIEW) TPS720xx V EN V BATT IN EN OUT GND V CORE 2.2 F Ceramic m 1.3V 1.8V Standalone dc/dc Converter orPMU BIAS TPS720xx www.ti.com ................................................................................................................................................ SBVS100C – JUNE 2008 – REVISED SEPTEMBER 2008 350mA, Ultra-Low VIN, RF Low-Dropout Linear Regulator with Bias Pin 2 • 350mA High-Performance LDO The TPS720xx family of dual rail, low-dropout linear regulators (LDOs) offers outstanding ac performance • Low Quiescent Current: 38µA (PSRR, load and line transient response), while • Excellent Load Transient Response: consuming a very low quiescent current of 38 µA. ±15mV for ILOAD = 0mA to 350mA in 1µs The VBIAS rail that powers the control circuit of the • Excellent Line Transient Response: LDO draws very low current (on the order of the ΔVOUT = ±2mV for ΔVBIAS = ±600mV in 1µs quiescent current of the LDO) and can be connected ΔVOUT = ±200µV for ΔVIN = ±400mV in 1µs to any power supply that is equal to or greater than • Low Noise: 48µV RMS (10Hz to 100kHz) 1.4V above the output voltage. The main power path is through VIN, which can be a lower voltage than • 80dB V IN PSRR (10Hz to 10kHz) VBIAS; it can be as low as VOUT + VDO, increasing the • 70dB V BIAS PSRR (10Hz to 10kHz) efficiency of the solution in many power-sensitive • Fast Start-Up Time: 140µs applications. For example, VIN can be an output of a • Built-In Soft-Start with Monotonic V OUT Rise high-efficiency, dc-dc step-down regulator. and Startup Current Limited to 100mA + ILOAD The TPS720xx supports a novel feature in which the • Over-Current and Thermal Protection output of the LDO regulates under light loads when the IN pin is left floating. The light-load drive current • Low Dropout: 110mV at I LOAD = 350mA is sourced from VBIAS under this condition. This • Stable with 2.2µF Output Capacitor feature is particularly useful in power-saving • Available in 1,33mm x 0,96mm WCSP-5 and applications where the dc/dc converter connected to 2mm x 2mm SON-6 Packages the IN pin is disabled but the LDO is still required to regulate the voltage to a light load. The TPS720xx is stable with ceramic capacitors and • Digital Cameras uses an advanced BICMOS fabrication process that • Cellular Camera Phones yields a dropout of 110mV at a 350mA output load. The TPS720xx has the unique feature of providing a • Wireless LAN monotonic VOUT rise (overshoot limited to 3%) with • Handheld Products VIN inrush current limited to 100mA + ILOAD with an output capacitor of 2.2 µF. The TPS720xx uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over load, line, process, and temperature extremes. An ultra-small wafer chip-scale package (WCSP) makes the TPS720xx ideal for handheld applications. The TPS720xx is also available in a SON-8 package. This family of devices is fully specified over the temperature range of TJ = –40°C to +125°C. 1 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. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008, 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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