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TPS76815-EP Datasheet(PDF) 16 Page - Texas Instruments |
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TPS76815-EP Datasheet(HTML) 16 Page - Texas Instruments |
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16 / 27 page  TPS76815EP, TPS76818EP, TPS76825EP, TPS76827EP TPS76828EP, TPS76830EP TPS76833EP, TPS76850EP, TPS76801EP FAST TRANSIENT RESPONSE 1A LOW DROPOUT VOLTAGE REGULATORS SGLS011B − MARCH 2003 − REVISED DECEMBER 2008 16 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION external capacitor requirements (continued) PG OUT OUT 7 6 5 IN IN EN GND 3 16 14 13 VI C1 0.1 µF PG VO 10 µF + TPS768xx Co 250 k Ω Figure 26. Typical Application Circuit (Fixed Versions) programming the TPS76801 adjustable LDO regulator The output voltage of the TPS76801 adjustable regulator is programmed using an external resistor divider as shown in Figure 27. The output voltage is calculated using: V O + V ref 1 ) R1 R2 (1) Where: Vref = 1.1834 V typ (the internal reference voltage) Resistors R1 and R2 should be chosen for approximately 50- µA divider current. Lower value resistors can be used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage currents at FB increase the output voltage error. The recommended design procedure is to choose R2 = 30.1 k Ω to set the divider current at 50 µA and then calculate R1 using: R1 + V O V ref * 1 R2 (2) OUTPUT VOLTAGE R1 R2 2.5 V 3.3 V 3.6 V 4.75 V UNIT 33.2 53.6 61.9 90.8 30.1 30.1 30.1 30.1 k Ω k Ω k Ω k Ω OUTPUT VOLTAGE PROGRAMMING GUIDE VO VI PG OUT FB / NC R1 R2 GND EN IN ≤ 0.9 V ≥ 1.7 V TPS76801 PG 0.1 µF 250 k Ω Figure 27. TPS76801 Adjustable LDO Regulator Programming |
Similar Part No. - TPS76815-EP_15 |
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Similar Description - TPS76815-EP_15 |
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