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TPS5120EVM-151 Datasheet(PDF) 9 Page - Texas Instruments |
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TPS5120EVM-151 Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 20 page  TPS5120 DUAL OUTPUT, TWOPHASE SYNCHRONOUS BUCK DC/DC CONTROLLER SLVS278E – AUGUST 2000 – REVISED MARCH 2003 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended free-air temperature range, VCC = 7 V (unless otherwise noted) reference voltage PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Vref Reference voltage 0.85 V TA = 25°C, I = 50 µA –1% 1% Vref(tol) Reference voltage tolerance TA = –20°C to 85°C, I = 50 µA –1.5% 1.5% Vref(tol) Reference voltage tolerance TA = –40°C to 85°C, I = 50 µA –2% 2% R(egin) Line regulation VCC = 4.5 V to 28 V, I = 50 µA 0.05 3 mV R(egl) Load regulation I = 0.1 µA to 1 mA 0.15 5 mV oscillator PARAMETER TEST CONDITIONS MIN TYP MAX UNIT fosc Frequency PWM mode, CT = 44 pF, TA = 25 °C 300 kHz V High le el o tp t oltage DC 1 1.1 1.2 V VOH High level output voltage fosc = 300 kHz 1.17 V V Lo le el o tp t oltage DC 0.4 0.5 0.6 V VOL Low level output voltage fosc = 300 kHz 0.43 V error amplifier PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIO Input offset voltage TA = 25°C 2 10 mV Open-loop voltage gain 50 dB Unity-gain bandwidth 2.5 MHz I(snk) Output sink current VO = 1 V 0.3 0.7 mA I(src) Output source current VO = 1 V 0.2 0.9 mA skip comparator PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Vhys Hysteresis window SKIP mode 9 mV duty control PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DUTY Maximum duty cycle 300 kHz, VI = 0 V 83% control PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V High le el inp t oltage STBY1, STBY2 2.2 V VIH High-level input voltage PWM/SKIP, 5V_STBY 2.2 V V Lo le el inp t oltage STBY1, STBY2 0.3 V VIL Low-level input voltage PWM/SKIP, 5V_STBY 0.3 V 5-V internal switch PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V(TO_H) Threshold 4.2 4.8 V V(TO_L) Threshold 4.1 4.7 V Vhys Hysteresis 30 200 mV |
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