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TPS73028YZQT Datasheet(PDF) 6 Page - Texas Instruments |
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TPS73028YZQT Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 15 page  www.ti.com 3 Time ( µs) 0 60 40 20 80 100 140 120 160 180 200 VIN = 3.8 V VOUT = 2.8 V IOUT = 200 mA COUT = 2.2 µF TJ = 25°C 1 2 0 0 2 CNR = 0.0047 µF CNR = 0.01 µF 4 CNR = 0.001 µF Time ( µs) 0 30 20 10 40 50 70 60 80 90 100 IOUT = 200 mA COUT = 2.2 µF CNR = 0.01 µF 0 -20 3.8 dv dt + 0.4 V µs 20 4.8 10 100 1 k 10 k 10 40 80 100 k 1 M 10 M Frequency (Hz) IOUT = 10 mA 50 0 VIN = 3.8 V COUT = 10 µF CNR = 0.01 µF IOUT = 200 mA 20 30 60 70 90 100 1s/div VIN VOUT VOUT = 3 V RL = 15 Ω 100 50 0 20 40 60 80 100 120 150 200 250 140 160 180 200 0 IOUT (mA) TJ = 125°C TJ = 25°C TJ = −55°C Time ( µs) 0 0 150 100 50 200 250 350 300 400 450 20 0 −20 100 500 VIN = 3.8 V COUT = 10 µF −40 200 300 di dt + 0.02A µs 1mA 0.01 0.1 10 100 0 0.02 0.04 0.06 0.08 0.20 IOUT (A) 1 Region of Instability Region of Stability COUT = 2.2 µF VIN = 5.5 V, VOUT ≥ 1.5 V TJ = −40°C to 125°C 0.01 0.1 10 100 0 0.02 0.04 0.06 0.08 0.20 IOUT (A) 1 Region of Instability Region of Stability COUT = 10 µF VIN = 5.5 V TJ = −40°C to 125°C TPS730xx SBVS054E – NOVEMBER 2004 – REVISED AUGUST 2005 TYPICAL CHARACTERISTICS (SOT23 PACKAGE) (continued) TPS73028 TPS73028 OUTPUT VOLTAGE, TPS73028 RIPPLE REJECTION ENABLE VOLTAGE LINE TRANSIENT RESPONSE vs vs FREQUENCY TIME (START-UP) Figure 8. Figure 9. Figure 10. TPS73028 POWER-UP / POWER-DOWN DROPOUT VOLTAGE LOAD TRANSIENT RESPONSE vs OUTPUT CURRENT Figure 11. Figure 12. Figure 13. TYPICAL REGIONS OF STABILITY TYPICAL REGIONS OF STABILITY EQUIVALENT SERIES RESISTANCE EQUIVALENT SERIES RESISTANCE (ESR) (ESR) vs vs OUTPUT CURRENT OUTPUT CURRENT Figure 14. Figure 15. 6 |
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