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MIC5205-3.8BM5 Datasheet(PDF) 3 Page - Micrel Semiconductor |
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MIC5205-3.8BM5 Datasheet(HTML) 3 Page - Micrel Semiconductor |
3 / 12 page MIC5205 Micrel June 2000 3 MIC5205 Electrical Characteristics V IN = VOUT + 1V; IL = 100µA; CL = 1.0µF; VEN ≥ 2.0V; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C; unless noted. Symbol Parameter Conditions Min Typical Max Units V O Output Voltage Accuracy variation from specified V OUT –11 % –22 % ∆V O/∆T Output Voltage Note 4 40 ppm/ °C Temperature Coefficient ∆V O/VO Line Regulation V IN = VOUT + 1V to 16V 0.004 0.012 % / V 0.05 % / V ∆V O/VO Load Regulation I L = 0.1mA to 150mA, Note 5 0.02 0.2 % 0.5 % V IN – VO Dropout Voltage, Note 6 I L = 100µA10 50 mV 70 mV I L = 50mA 110 150 mV 230 mV I L = 100mA 140 250 mV 300 mV I L = 150mA 165 275 mV 350 mV I GND Quiescent Current V EN ≤ 0.4V (shutdown) 0.01 1 µA V EN ≤ 0.18V (shutdown) 5 µA I GND Ground Pin Current, Note 7 V EN ≥ 2.0V, IL = 100µA80 125 µA 150 µA I L = 50mA 350 600 µA 800 µA I L = 100mA 600 1000 µA 1500 µA I L = 150mA 1300 1900 µA 2500 µA PSRR Ripple Rejection frequency = 100Hz, I L = 100µA75 dB I LIMIT Current Limit V OUT = 0V 320 500 mA ∆V O/∆PD Thermal Regulation Note 8 0.05 %/W e no Output Noise I L = 50mA, CL = 2.2µF, 260 nV/ Hz 470pF from BYP to GND ENABLE Input V IL Enable Input Logic-Low Voltage regulator shutdown 0.4 V 0.18 V V IH Enable Input Logic-High Voltage regulator enabled 2.0 V I IL Enable Input Current V IL ≤ 0.4V 0.01 –1 µA V IL ≤ 0.18V –2 µA I IH V IH ≥ 2.0V 2 5 20 µA V IH ≥ 2.0V 25 µA Note 1. Exceeding the absolute maximum rating may damage the device. Note 2. The device is not guaranteed to function outside its operating rating. Note 3: The maximum allowable power dissipation at any T A (ambient temperature) is PD(max) = (TJ(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 JA of the MIC5205- xxBM5 (all versions) is 220 °C/W mounted on a PC board (see “Thermal Considerations” section for further details). Note 4: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note 5: 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 150mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification. Note 6: 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 7: 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 8: 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 150mA load pulse at V IN = 16V for t = 10ms. |
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