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TPS74801DRCR Datasheet(PDF) 3 Page - Texas Instruments |
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TPS74801DRCR Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 19 page  www.ti.com ELECTRICAL CHARACTERISTICS TPS74801 SBVS074 – JANUARY 2007 At V EN = 1.1V, VIN = VOUT + 0.3V, CBIAS = 0.1µF, CIN = COUT = 10µF, CNR = , IOUT = 50mA, VBIAS = 5.0V, and TJ = –40°C to +125 °C, unless otherwise noted. Typical values are at T J = +25°C. TPS74801 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN Input voltage range VOUT + VDO 5.5 V VBIAS Bias pin voltage range 2.7 5.5 V VREF Internal reference (Adj.) TJ = +25°C 0.796 0.8 0.804 V Output voltage range VIN = 5V, IOUT = 1.5A VREF 3.6 V VOUT 2.97V ≤ V BIAS ≤ 5.5V, Accuracy(1) –2 ±0.5 2 % 50mA ≤ I OUT ≤ 1.5A VOUT/VIN Line regulation VOUT (NOM) + 0.3 ≤ VIN ≤ 5.5V 0.03 %/V VOUT/IOUT Load regulation 50mA ≤ I OUT ≤ 1.5A 0.09 %/A IOUT = 1.5A, VBIAS – VOUT (NOM) ≥ 3.25V 60 165 mV VDO VIN dropout voltage(2) IOUT = 1.5A, VIN = VBIAS 1.31 1.6 V ICL Current limit VOUT = 80% × VOUT (NOM) 2.0 5.5 A IBIAS Bias pin current 1 2 mA Shutdown supply current ISHDN VEN ≤ 0.4V 1 50 µA (IGND) IFB Feedback pin current –1 150 1 µA 1kHz, IOUT = 1.5A, 60 VIN = 1.8V, VOUT = 1.5V Power-supply rejection dB (VIN to VOUT) 300kHz, IOUT = 1.5A, 30 VIN = 1.8V, VOUT = 1.5V PSRR 1kHz, IOUT = 1.5A, 50 VIN = 1.8V, VOUT = 1.5V Power-supply rejection dB (VBIAS to VOUT) 300kHz, IOUT = 1.5A, 30 VIN = 1.8V, VOUT = 1.5V 100Hz to 100kHz, Noise Output noise voltage 25 × V OUT µV RMS IOUT = 1.5A, CSS = 0.001µF tSTR Minimum startup time RLOAD for IOUT = 1.0A, CSS = open 200 µs ISS Soft-start charging current VSS = 0.4V 440 nA 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 85 90 94 %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 0.1 1 µA Operating junction TJ –40 +125 °C temperature Shutdown, temperature increasing +165 Thermal shutdown TSD °C temperature Reset, temperature decreasing +140 (1) Adjustable devices tested at 0.8V; resistor tolerance is not taken into account. (2) Dropout is defined as the voltage from VIN to VOUT when VOUT is 3% below nominal. 3 Submit Documentation Feedback |
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