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TPS71725DCKRG4 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS71725DCKRG4 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 43 page 6 TPS717 SBVS068I – FEBRUARY 2006 – REVISED JANUARY 2016 www.ti.com Product Folder Links: TPS717 Submit Documentation Feedback Copyright © 2006–2016, Texas Instruments Incorporated (1) Minimum VIN = VOUT + VDO or 2.5 V, whichever is greater. (2) Does not include external resistor tolerances. (3) VDO is not measured for devices with VOUT(nom) < 2.6 V because the minimum VIN is 2.5 V. (4) Maximum VEN(high) = VIN + 0.3 or 6.5 V, whichever is smaller. 6.5 Electrical Characteristics Over operating temperature range (TJ = –40°C to 125°C), VIN = VOUT(nom) + 0.5 V or 2.5 V, whichever is greater; IOUT = 0.5 mA, VEN = VIN, COUT = 1.0 μF, CNR = 0.01 μF, unless otherwise noted. For TPS71701, VOUT = 2.8 V. Typical values are at TJ = 25°C. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN Input voltage range(1) 2.5 6.5 V VFB Feedback pin voltage (TPS71701) IOUT = 5 mA –2% 0.793 2% V VOUT Output voltage range (TPS717xx) 0.9 5.0 V (TPS71701) 0.9 6.5 – VDO VOUT Output accuracy Nominal TJ = 25°C ±2.5 mV Output accuracy (VOUT < 1.0 V) Over VIN, IOUT, temperature(2) VOUT + 0.5 V ≤ VIN ≤ 6.5 V 0 mA ≤ IOUT ≤ 150 mA –30 30 Output accuracy (VOUT ≥ 1.0 V) Over VIN, IOUT, temperature(2) VOUT + 0.5 V ≤ VIN ≤ 6.5 V 0 mA ≤ IOUT ≤ 150 mA –3.0% 3.0% ΔVOUT(ΔVIN) Line regulation(1) VOUT(nom) + 0.5 V ≤ VIN ≤ 6.5 V, IOUT = 5 mA 125 µV/V ΔVOUT(ΔIOUT) Load regulation 0 mA ≤ IOUT ≤ 150 mA 70 µV/mA VDO Dropout voltage(3) (VIN = VOUT(nom) – 0.1 V) IOUT = 150 mA 170 300 mV ILIM (fixed) Output current limit (fixed output) VOUT = 0.9 × VOUT(nom) 200 325 575 mA ILIM (adjustable) Output current limit (TPS71701) VOUT = 0.9 × VOUT(nom) 200 325 575 mA IGND Ground pin current IOUT = 0.1 mA 45 80 μA IOUT = 150 mA 100 ISHDN Shutdown current (IGND) VEN ≤ 0.4 V, TJ = –40°C to 85°C 2.5 V ≤ VIN < 4.5 V 0.20 1.5 μA 4.5 V ≤ VIN ≤ 6.5 V 0.90 IFB Feedback pin current (TPS71701) 0.02 1.0 μA PSRR Power-supply rejection ratio VIN = 3.8 V, VOUT = 2.8 V, IOUT = 150 mA f = 100 Hz 70 dB f = 1 kHz 70 f = 10 kHz 67 f = 100 kHz 67 f = 1 MHz 45 Vn Output noise voltage BW = 100 Hz to 100 kHz, VIN = 3.8 V, VOUT = 2.8 V, IOUT = 10 mA CNR = none 95 × VOUT μVRMS/V CNR = 0.001 μF 25 × VOUT CNR = 0.01 μF 12.5 × VOUT CNR = 0.1 μF 11.5 × VOUT tSTR Startup time VOUT = 90% VOUT(nom), RL = 19 Ω, COUT = 1 μF 0.9 V ≤ VOUT ≤ 1.6V, CNR = 0.001 μF 0.700 ms 1.6 V < VOUT < VMAX, CNR = 0.01 μF 0.160 VEN(high) Enable high (enabled) VIN ≤ 5.5 V 1.2 6.5(4) V 5.5 V < VIN ≤ 6.5 V 1.25 6.5 VEN(low) Enable low (shutdown) 0 0.4 V IEN(high) Enable pin current, enabled EN = 6.5 V 0.02 1.0 μA UVLO Undervoltage lockout VIN rising 2.45 2.49 V Hysteresis VIN falling 150 mV Tsd Thermal shutdown temperature Shutdown, temperature increasing 160 °C Reset, temperature decreasing 140 TJ Operating junction temperature –40 125 °C |
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