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TPS7A3001-EP データシート(PDF) 4 Page - Texas Instruments |
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TPS7A3001-EP データシート(HTML) 4 Page - Texas Instruments |
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4 / 25 page  D D V ( V ) OUT IN V OUT(NOM) D D V ( I ) OUT OUT V OUT(NOM) TPS7A3001-EP SBVS174 – OCTOBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS (1) At TJ = –55°C to +125°C, |VIN| = |VOUT(NOM)| + 1.0V or |VIN| = 3.0V (whichever is greater), VEN = VIN, IOUT = 1mA, CIN = 2.2µF, COUT = 2.2µF, CNR/SS = 0nF, and the FB pin tied to OUT, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN Input voltage range –36.0 –3.0 V VREF Internal reference VNR/SS = VREF –1.22 –1.184 –1.142 V Output voltage range(2) |VIN| ≥ |VOUT(NOM)| + 1.0V –35.0 VREF V Nominal accuracy TJ = +25°C, |VIN| = |VOUT(NOM)| + 0.5V –1.5 +1.5 %VOUT VOUT |VOUT(NOM)| + 1.0V ≤ |VIN| ≤ 35V Overall accuracy –2.85 +2.85 %VOUT 1mA ≤ IOUT ≤ 200mA Line regulation TJ = +25°C, |VOUT(NOM)| + 1.0V ≤ |VIN| ≤ 35V 0.14 %VOUT Load regulation TJ = +25°C, 1mA ≤ IOUT ≤ 200mA 0.04 %VOUT VIN = 95% VOUT(NOM), IOUT = 100mA 216 mV |VDO| Dropout voltage VIN = 95% VOUT(NOM), IOUT = 200mA 325 600 mV ILIM Current limit VOUT = 90% VOUT(NOM) 220 330 500 mA IOUT = 0mA 55 100 μA IGND Ground current IOUT = 100mA 950 μA VEN = +0.4V 1.0 3.0 μA |ISHDN| Shutdown supply current VEN = –0.4V 1.0 3.0 μA I FB Feedback current(3) 14 100 nA VEN = |VIN| = |VOUT(NOM)| + 1.0V 0.48 1.0 μA |IEN| Enable current VIN = VEN = –35V 0.51 1.0 μA VIN = –35V, VEN = +15V 0.50 1.2 μA V+EN_HI Positive enable high-level voltage TJ = –55°C to +125°C +2.0 +15 V V+EN_LO Positive enable low- level voltage 0 +0.4 V V–EN_HI Negative enable high-level voltage VIN –2.0 V V–EN_LO Negative enable low- level voltage –0.4 0 V VIN = –3V, VOUT(NOM) = VREF, COUT = 10μF, 15.1 μVRMS CNR/SS = 10nF, BW = 10Hz to 100kHz VNOISE Output noise voltage VIN = –6.2V, VOUT(NOM) = –5V, COUT = 10μF, CNR/SS = CBYP (4) = 10nF, BW = 10Hz to 17.5 μVRMS 100kHz VIN = –6.2V, VOUT(NOM) = –5V, COUT = 10μF, PSRR Power-supply rejection ratio 72 dB CNR/SS = CBYP (4) = 10nF, f = 120Hz Shutdown, temperature increasing +170 °C TSD Thermal shutdown temperature Reset, temperature decreasing +150 °C Operating junction temperature TJ –55 +125 °C range (1) At operating conditions, VIN ≤ 0V, VOUT(NOM) ≤ VREF ≤ 0V. At regulation, VIN ≤ VOUT(NOM) – |VDO|. IOUT > 0 flows from OUT to IN. (2) To ensure stability at no load conditions, a current from the feedback resistive network equal to or greater than 5 μA is required. (3) IFB > 0 flows into the device. (4) CBYP refers to a bypass capacitor connected to the FB and OUT pins. 4 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated |
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