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TPS54110 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS54110 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 30 page  TPS54110 www.ti.com SLVS500C – DECEMBER 2003 – REVISED FEBRUARY 2011 ELECTRICAL CHARACTERISTICS TJ = –40°C to 125°C, VIN = 3 V to 6 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VOLTAGE, VIN VIN input voltage range 3 6 V fs = 350 kHz, SYNC ≤ 0.8 V, RT open 4.5 8.5 fs = 550 kHz, Phase pin open, Quiescent current 5.8 9.6 mA SYNC ≥ 2.5 V, RT open, Shutdown, SS/ENA = 0 V 1 1.4 UNDER VOLTAGE LOCK OUT Start threshold voltage, UVLO 2.95 3 V Stop threshold voltage, UVLO 2.70 2.80 Hysteresis voltage, UVLO 0.12 V Rising and falling edge deglitch, 2.5 µs UVLO(1) BIAS VOLTAGE Output voltage, VBIAS I(VBIAS) = 0 2.70 2.80 2.90 V VO Output current, VBIAS(2) 100 µA CUMULATIVE REFERENCE Vref Accuracy 0.882 0.891 0.900 V REGULATION IL = 0.75 A, fs = 350 kHz, TJ = 85°C 0.05 Line regulation(1)(3) %/V IL = 0.75 A, fs = 550 kHz, TJ = 85°C 0.05 IL = 0 A to 1.5 A, fs = 350 kHz, TJ = 85°C 0.01 Load regulation(1)(3) %/A IL = 0 A to 1.5 A fs = 550 kHz, TJ = 85°C 0.01 OSCILLATOR SYNC ≤ 0.8 V, RT open 280 350 420 Internally set free-running kHz frequency range SYNC ≥ 2.5 V, RT open 440 550 660 RT = 180 k Ω (1% resistor to AGND)(1) 252 280 308 Externally set free-running RT = 100 k Ω (1% resistor to AGND) 460 500 540 kHz frequency range RT = 68 k Ω (1% resistor to AGND)(1) 663 700 762 High-level threshold voltage, 2.5 V SYNC Low-level threshold voltage, 0.8 V SYNC Pulse duration, SYNC(1) 50 ns Frequency range, SYNC(1) 330 700 kHz Ramp valley(1) 0.75 V Ramp amplitude (peak-to-peak)(1) 1 V Minimum controllable on time(1) 200 ns Maximum duty cycle 90 % (1) Specified by design (2) Static resistive loads only (3) Specified by the circuit used in Figure 9. © 2003–2011, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS54110 |
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