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TPS71H48QPWPLE Datasheet(PDF) 1 Page - Texas Instruments |
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TPS71H48QPWPLE Datasheet(HTML) 1 Page - Texas Instruments |
1 / 40 page TPS71H01Q, TPS71H33Q, TPS71H48Q, TPS71H50Q LOW-DROPOUT VOLTAGE REGULATORS SLVS152B – NOVEMBER 1996 – REVISED AUGUST 2002 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Available in 5-V, 4.85-V, and 3.3-V Fixed-Output and Adjustable Versions D Very Low-Dropout Voltage ...Maximum of 32 mV at IO = 100 mA (TPS71H50) D Very Low Quiescent Current – Independent of Load . . . 285 µA Typ D Extremely Low Sleep-State Current 0.5 µA Max D 2% Tolerance Over Specified Conditions For Fixed-Output Versions D Output Current Range of 0 mA to 500 mA D TSSOP Package Option Offers Reduced Component Height for Space-Critical Applications D Thermally Enhanced Surface-Mount Package D Power-Good (PG) Status Output description The TPS71Hxx integrated circuits are a family of micropower low-dropout (LDO) voltage regula- tors. An order of magnitude reduction in dropout voltage and quiescent current over conventional LDO performance is achieved by replacing the typical pnp pass transistor with a PMOS device. Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 32 mV at an output current of 100 mA for the TPS71H50) and is directly proportional to the output current (see Figure 1). Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and remains independent of output loading (typically 285 µA over the full range of output current, 0 mA to 500 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. The LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to 0.5 µA maximum at TJ = 25°C. 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. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright 2002, Texas Instruments Incorporated NC – No internal connection † SENSE – Fixed voltage options only (TPS71H33, TPS71H48, and TPS71H50) ‡ FB – Adjustable version only (TPS71H01) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 GND/HEATSINK GND/HEATSINK GND NC EN IN IN NC GND/HEATSINK GND/HEATSINK GND/HEATSINK GND/HEATSINK NC NC PG SENSE†/FB‡ OUT OUT GND/HEATSINK GND/HEATSINK PWP PACKAGE (TOP VIEW) Thermal Pad PWP PACKAGE (BOTTOM VIEW) |
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