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MIC5248-1.2YM5 Datasheet(PDF) 3 Page - Micrel Semiconductor |
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MIC5248-1.2YM5 Datasheet(HTML) 3 Page - Micrel Semiconductor |
3 / 12 page MIC5248 Micrel November 2002 3 MIC5248 Electrical Characteristics V IN = 2.7V, VEN = VIN; IOUT = 100µA; 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 I OUT = 100µA –33 % –44 % ∆V LNR Line Regulation V IN = 2.7V to 6V –0.3 0 0.3 %/V ∆V LDR Load Regulation I OUT = 0.1mA to 150mA, Note 4 4.0 5.0 % I Q Quiescent Current V EN ≤ 0.4V (shutdown) 0.45 1 µA I GND Ground Pin Current, Note 5 I OUT = 0mA; VIN = 6.0V 100 150 µA I OUT = 150mA; VIN = 6.0V 100 150 µA PSRR Power Supply Rejection f = 120Hz, C OUT = 4.7µF, IOUT = 150mA 60 dB I LIM Current Limit V OUT = 0V 160 350 mA Enable Input V IL Enable Input Logic-Low Voltage V IN = 5.5V, regulator shutdown 0.4 V V IH Enable Input Logic-High Voltage V IN = 5.5V, regulator enabled 1.6 V I EN Enable Input Current V IL ≤ 0.4V; VIN = 5.5V 0.01 µA V IH ≥ 1.6V; VIN = 5.5V 0.01 µA Thermal Protection Thermal Shutdown Temperature 150 °C Thermal Shutdown Hysteresis 10 °C Power Good, Note 6 V PG Low Threshold % of V OUT (PG ON) 89.5 % High Threshold % of V OUT (PG OFF) 96.5 % V OL PG Output Logic-Low Voltage I L = 100µA, fault condition 0.02 0.1 V I PG Power Good Leakage Current power good off, V PG = 5.5V 0.01 µA V PG Delay Delay Time to Power Good See “Timing Diagram” 15 ms 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. Devices are ESD sensitive. Handling precautions recommended. Note 4. 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 5. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin current. Note 6. The power good is a function of the output voltage being 5% low and the detection of one of the following: overcurrent, over-temperature or dropout. See “Applications Information” section for additional information. Absolute Maximum Ratings (Note 1) Supply Input Voltage (V IN) .................................. 0V to +7V Enable Input Voltage (V EN) .................................. 0V to VIN Flag Output Voltage (V PG) ................................... 0V to VIN Junction Temperature (T J) ...................................... +150°C Storage Temperature ............................... –65 °C to +150°C Lead Temperature (soldering, 5 sec.) ....................... 260 °C ESD, Note 3 Operating Ratings (Note 2) Input Voltage (V IN) ......................................... +2.7V to +6V Enable Input Voltage (V EN) .................................. 0V to VIN Flag Output Voltage (V PG) ................................... 0V to VIN Junction Temperature (T J) ....................... –40°C to +125°C Thermal Resistance SOT-23 (θ JA) ...................................................... 235°C/W |
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