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TPS7A4001 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS7A4001 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 17 page  D%VOUT DVIN D%VOUT DIOUT TPS7A4001 www.ti.com SBVS162A – MARCH 2011 – REVISED MARCH 2011 ELECTRICAL CHARACTERISTICS At TJ = –40°C to +125°C, VIN = VOUT(NOM) + 2.0V or VIN = 7.0V (whichever is greater), VEN = VIN, IOUT = 100µA, CIN = 1μF, COUT = 4.7μF, and FB tied to OUT, unless otherwise noted. TPS7A4001 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN Input voltage range 7.0 100.0 V VREF Internal reference TJ = +25°C, VFB = VREF, VIN = 9V, IOUT = 25mA 1.161 1.173 1.185 V Output voltage range(1) VIN ≥ VOUT(NOM) + 2.0V VREF 90 V Nominal accuracy TJ = +25°C, VIN = 9V, IOUT = 25mA –1.0 +1.0 %VOUT VOUT VOUT(NOM) + 2.0V ≤ VIN ≤ 24V (2) Overall accuracy –2.5 +2.5 %VOUT 100 µA ≤ IOUT ≤ 50mA Line regulation 7V ≤ VIN ≤ 100V 0.03 %VOUT Load regulation 100 µA ≤ IOUT ≤ 50mA 0.31 %VOUT VIN = 17V, VOUT(NOM) = 18V, IOUT = 20mA 290 mV VDO Dropout voltage VIN = 17V, VOUT(NOM) = 18V, IOUT = 50mA 0.78 1.3 V VOUT = 90% VOUT(NOM), VIN = 7.0V, TJ ≤ +85°C 51 117 200 mA ILIM Current limit VOUT = 90% VOUT(NOM), VIN = 9.0V 51 128 200 mA 7V ≤ VIN ≤ 100V, IOUT = 0mA 25 65 μA IGND Ground current IOUT = 50mA 25 μA ISHDN Shutdown supply current VEN = +0.4V 4.1 20 μA I FB Feedback current(3) –0.1 0.01 0.1 µA IEN Enable current 7V ≤ VIN ≤ 100V, VIN = VEN 0.02 1.0 μA VEN_HI Enable high-level voltage 1.5 VIN V VEN_LO Enable low- level voltage 0 0.4 V VIN = 12V, VOUT(NOM) = VREF, COUT = 10μF, 58 μVRMS BW = 10Hz to 100kHz VNOISE Output noise voltage VIN = 12V, VOUT(NOM) = 5V, COUT = 10μF, 73 μVRMS CBYP (4) = 10nF, BW = 10Hz to 100kHz VIN = 12V, VOUT(NOM) = 5V, COUT = 10μF, PSRR Power-supply rejection ratio 65 dB CBYP (4) = 10nF, f = 100Hz Shutdown, temperature increasing +170 °C TSD Thermal shutdown temperature Reset, temperature decreasing +150 °C Operating junction temperature TJ –40 +125 °C range (1) To ensure stability at no-load conditions, a current from the feedback resistive network greater than or equal to 10 μA is required. (2) Maximum input voltage is limited to 24V because of the package power dissipation limitations at full load (P ≈ (VIN – VOUT) × IOUT = (24V – VREF) × 50mA ≈ 1.14W). The device is capable of sourcing a maximum current of 50mA at higher input voltages as long as the power dissipated is within the thermal limits of the package plus any external heatsinking. (3) IFB > 0 flows out of the device. (4) CBYP refers to a bypass capacitor connected to the FB and OUT pins. Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS7A4001 |
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