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TPPM0303D Scheda tecnica(PDF) 1 Page - Texas Instruments |
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TPPM0303D Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 10 page TPPM0303 250-mA LOW-DROPOUT REGULATOR WITH AUXILIARY POWER MANAGEMENT SLVS364 – FEBRUARY 2001 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Automatic Input Voltage Source Selection D Glitch-Free Regulated Output D 5-V Input Voltage Source Detector With Hysteresis D 250-mA Load Current Capability With 5-V or 3.3-V Input Source D Low rDS(on) Auxiliary Switch description The TPPM0303 is a low-dropout regulator with auxiliary power management that provides a constant 3.3-V supply at the output capable of driving a 250-mA load. The TPPM0303 provides a regulated power output for systems that have multiple input sources and require a constant voltage source with a low-dropout voltage. This is a single output, multiple input, intelligent power source selection device with a low-dropout regulator for either 5VCC or 5VAUX inputs, and a low-resistance bypass switch for the 3.3VAUX input. Transitions may occur from one input supply to another without generating a glitch outside of the specification range on the 3.3-V output. The device has an incorporated reverse-blocking scheme to prevent excess leakage from the input terminals in the event that the output voltage is greater than the input voltage. The input voltage is prioritized in the following order: 5VCC, 5VAUX, and 3.3VAUX. Copyright © 2001, Texas Instruments Incorporated 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. 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. 1 2 3 4 8 7 6 5 5VAUX 5VCC 3.3VOUT 3.3VAUX NC GND NC NC D PACKAGE (TOP VIEW) |
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