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MIC5200-3.3BS Datasheet(PDF) 3 Page - Micrel Semiconductor |
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MIC5200-3.3BS Datasheet(HTML) 3 Page - Micrel Semiconductor |
3 / 6 page MIC5200 Micrel 3-125 July 1998 3 Electrical Characteristics Limits in standard typeface are for T J = 25°C and limits in boldface apply over the junction temperature range of –40°C to +125°C. Unless otherwise specified, V IN = VOUT + 1V, IL = 1mA, CL = 3.3µF, and VENABLE ≥ 2.0V Symbol Parameter Conditions Min Typical Max Units V O Output Voltage Variation from specified V OUT –1 1 % Accuracy –2 2 ∆V O Output Voltage (Note 2) 40 150 ppm/ °C ∆T Temperature Coef. ∆V O Line Regulation V IN = VOUT + 1 V to 26V 0.004 0.10 % V IN 0.40 ∆V O Load Regulation I L = 0.1mA to 100mA (Note 3) 0.04 0.16 % V OUT 0.30 V IN – VO Dropout Voltage I L = 100µA17 mV (Note 4) I L = 20mA 130 I L = 30mA 150 I L = 50mA 190 I L = 100mA 230 350 I GND Quiescent Current V ENABLE ≤ 0.7V (Shutdown) 0.01 10 µA I GND Ground Pin Current V ENABLE ≥ 2.0V, IL = 100µA 130 µA I L = 20mA 270 350 I L = 30mA 330 I L = 50mA 500 I L = 100mA 1000 1500 PSRR Ripple Rejection 70 dB I GNDDO Ground Pin V IN = 0.5V less than specified VOUT 270 330 µA Current at Dropout I L = 100µA (Note 5) I LIMIT Current Limit V OUT = 0V 100 250 mA ∆V O Thermal Regulation (Note 6) 0.05 %/W ∆P D e n Output Noise 100 µV ENABLE Input Input Voltage Level V IL Logic Low OFF 0.7 V Logic High ON 2.0 I IL ENABLE Input Current V IL ≤ 0.7V 0.01 1 µA I IH V IH ≥ 2.0V 15 50 Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its rated operating conditions. The maximum allowable power dissipation is a function of the maximum junction temperature, T J (MAX), the junction-to-ambient thermal resistance, θJA, and the ambient temperature, T A. The maximum allowable power dissipation at any ambient temperature is calculated using: P(MAX) = (T J(MAX) –TA) ÷ θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. The θ JC of the MIC5200-xxBS is 15°C/W and θJA for the MIC5200BM is 160°C/W mounted on a PC board (see “Thermal Considerations” section for further details). Note 2: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note 3: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 0.1mA to 100mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification. Note 4: Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. Note 5: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of the load current plus the ground pin current. Note 6: Thermal regulation is defined as the change in output voltage at a time t after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 100mA load pulse at V IN = 26V for t = 10ms. |
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