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TPS54316PWP Datasheet(PDF) 3 Page - Texas Instruments |
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TPS54316PWP Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 22 page  TPS54311, TPS54312 TPS54313, TPS54314 TPS54315, TPS54316 SLVS416B − FEBRUARY 2002 − REVISED APRIL 2005 www.ti.com 3 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, FSEL = 0.8 V, RT open 6.2 9.6 Quiescent current fs = 550 kHz, Phase pin open FSEL ≥ 2.5 V, RT open, 8.4 12.8 mA 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 V Hysteresis voltage, UVLO 0.14 0.16 V Rising and falling edge deglitch, UVLO(1) 2.5 µs BIAS VOLTAGE Output voltage, VBIAS I(VBIAS) = 0 2.70 2.80 2.90 V Output current, VBIAS(2) 100 µA OUTPUT VOLTAGE TPS54311 TJ = 25°C, VIN = 5 V 0.9 V TPS54311 3 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% TPS54312 TJ = 25°C, VIN = 5 V 1.2 V TPS54312 3 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% TPS54313 TJ = 25°C, VIN = 5 V 1.5 V V Output voltage TPS54313 3 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% VO Output voltage TPS54314 TJ = 25°C, VIN = 5 V 1.8 V TPS54314 3 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% TPS54315 TJ = 25°C, VIN = 5 V 2.5 V TPS54315 3 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% TPS54316 TJ = 25°C, VIN = 5 V 3.3 V TPS54316 3 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% REGULATION Line regulation(1) (3) IL = 1.5 A, 350 ≤ fs ≤ 550 kHz, TJ = 85°C 0.21 %/V Load regulation (1) (3) IL = 0 A to 3 A, 350 ≤ fs ≤ 550 kHz, TJ = 85°C 0.21 %/A OSCILLATOR Internally set free-running frequency FSEL ≤ 0.8 V, RT open 280 350 420 kHz Internally set free running frequency range FSEL ≥ 2.5 V, RT open 440 550 660 kHz Externally set free running frequency RT = 180 kΩ (1% resistor to AGND)(1) 252 280 308 Externally set free-running frequency range RT = 100 kΩ (1% resistor to AGND) 460 500 540 kHz range RT = 68 kΩ (1% resistor to AGND)(1) 663 700 762 kHz High-level threshold voltage at FSEL 2.5 V Low-level threshold voltage at FSEL 0.8 V 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 10. |
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