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TPS70451 Datasheet(PDF) 11 Page - Texas Instruments |
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TPS70451 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 32 page TPS70445, TPS70448, TPS70451, TPS70458, TPS70402 DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS SLVS307B – SEPTEMBER 2000 – REVISED APRIL 2003 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TYPICAL CHARACTERISTICS Table of Graphs FIGURE VO Output voltage vs Output current 1, 2 VO Output voltage vs Junction temperature 3, 4 Ground current vs Junction temperature 5 PSRR Power supply rejection ratio vs Frequency 6 – 9 Output spectral noise density vs Frequency 10 – 13 zo Output impedance vs Frequency 14 – 17 Dropout voltage vs Temperature 18, 19 Dropout voltage vs Input voltage 20, 21 Load transient response 22, 23 Line transient response 24, 25 VO Output voltage vs Time (start-up) 26, 27 Equivalent series resistance (ESR) vs Output current 29 – 32 Figure 1 3.27 3.28 3.29 3.30 3.31 0 200 400 600 800 1000 IO – Output Current – mA TPS70451 OUTPUT VOLTAGE vs OUTPUT CURRENT VIN1 = 4.3 V TJ = 25°C VOUT1 3.32 3.33 Figure 2 1.785 1.79 1.795 1.8 1.805 0 500 1000 1500 2000 IO – Output Current – mA TPS70451 OUTPUT VOLTAGE vs OUTPUT CURRENT VIN2 = 2.8V TJ = 25°C VOUT2 1.81 1.815 |
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