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TPS74301KTWRG3 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS74301KTWRG3 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 27 page www.ti.com ELECTRICAL CHARACTERISTICS TPS74301 SBVS065E – DECEMBER 2005 – REVISED MAY 2007 At V EN = 1.1V, VIN = VOUT + 0.3V, CIN = CBIAS = 0.1µF, COUT = 10µF, IOUT = 50mA, VBIAS = 5.0V, and TJ = –40°C to +125°C, unless otherwise noted. Typical values are at T J = +25°C. TPS74301 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN Input voltage range VOUT + VDO 5.5 V VBIAS Bias pin voltage range 2.375 5.25 V VREF Internal reference (Adj.) TJ = +25°C 0.796 0.8 0.804 V Output voltage range VIN = 5V, IOUT = 1.5A, VBIAS = 5V VREF 3.6 V VOUT Accuracy(1) 2.375V ≤ V BIAS ≤ 5.25V, 50mA ≤ IOUT ≤ 1.5A –1 ±0.2 1 % VOUT (NOM) + 0.3 ≤ VIN ≤ 5.5V, QFN 0.0005 0.05 VOUT/VIN Line regulation %/V VOUT (NOM) + 0.3 ≤ VIN ≤ 5.5V, DDPAK 0.0005 0.06 0mA ≤ I OUT ≤ 50mA 0.013 %/mA VOUT/IOUT Load regulation 50mA ≤ I OUT ≤ 1.5A 0.04 %/A IOUT = 1.5A, VBIAS – VOUT (NOM) ≥ 1.62V, QFN 55 100 VIN dropout voltage(2) mV VDO IOUT = 1.5A, VBIAS – VOUT (NOM) ≥ 1.62V, DDPAK 60 120 VBIAS dropout voltage(2) IOUT = 1.5A, VIN = VBIAS 1.4 V ICL Current limit VOUT = 80% × VOUT (NOM) 1.8 4 A IBIAS Bias pin current IOUT = 0mA to 1.5A 2 4 mA Shutdown supply current ISHDN VEN ≤ 0.4V 1 100 µA (VIN) IFB Feedback pin current(3) IOUT = 50mA to 1.5A –250 68 250 nA 1kHz, IOUT = 1.5A, VIN = 1.8V, VOUT = 1.5V 73 Power-supply rejection dB (VIN to VOUT) 800kHz, IOUT = 1.5A, VIN = 1.8V, VOUT = 1.5V 42 PSRR 1kHz, IOUT = 1.5A, VIN = 1.8V, VOUT = 1.5V 67 Power-supply rejection dB (VBIAS to VOUT) 800kHz, IOUT = 1.5A, VIN = 1.8V, VOUT = 1.5V 50 Noise Output noise voltage 100Hz to 100kHz, IOUT = 1.5A 25 × V OUT µV RMS %VOUT droop during load VTRAN IOUT = 50mA to 1.5A at 1A/µs, COUT = none 3.5 %VOUT transient tSTR Minimum startup time VTRACK > 0.8V 40 µs TACC Track pin accuracy 0.2V ≤ V TRACK≤ 0.7V, VOUT = 0.8V –60 60 mV ITR Track pin current VTRACK = 0.4V 0.1 1 µA VEN, HI Enable input high level 1.1 5.5 V VEN, LO Enable input low level 0 0.4 V VEN, HYS Enable pin hysteresis 50 mV VEN, DG Enable pin deglitch time 20 µs IEN Enable pin current VEN = 5V 0.1 1 µA VIT PG trip threshold VOUT decreasing 86.5 90 93.5 %VOUT VHYS PG trip hysteresis 3 %VOUT VPG, LO PG output low voltage IPG = 1mA (sinking), VOUT < VIT 0.3 V IPG, LKG PG leakage current VPG = 5.25V, VOUT > VIT 0.3 1 µA Operating junction TJ –40 +125 °C temperature Shutdown, temperature increasing +155 Thermal shutdown TSD °C temperature Reset, temperature decreasing +140 (1) Adjustable devices tested at 0.8V; external resistor tolerance is not taken into account. (2) Dropout is defined as the voltage from the input to VOUT when VOUT is 2% below nominal. (3) IFB current flow is out of the device. 3 Submit Documentation Feedback |
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