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MIC2940A-3.3WT Datasheet(PDF) 3 Page - Micrel Semiconductor |
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MIC2940A-3.3WT Datasheet(HTML) 3 Page - Micrel Semiconductor |
3 / 11 page Micrel, Inc. MIC2940A/2941A July 2007 3 M9999-071307 Absolute Maximum Ratings If Military/Aerospace specified devices are required, contact your local Micrel representative/distributor for availability and specifications Power Dissipation (Note 1) .......................Internally Limited Lead Temperature (soldering, 5 sec.)........................ 260°C Storage Temperature ................................–65°C to +150°C Operating Junction Temperature ..............–40°C to +125°C TO-220 ( θJC) ........................................................2°C/W TO-263 ( θJC) ........................................................2°C/W Input Supply Voltage ...................................... –20V to +60V Operating Input Supply Voltage .......................... 2V † to 26V Adjust Input Voltage (Notes 9 and 10) ......... –1.5V to +26V Shutdown Input Voltage................................ –0.3V to +30V Error Comparator Output Voltage ................. –0.3V to +30V † Across the full operating temperature, the minimum input voltage range for full output current is 4.3V to 26V. Output will remain in-regulation at lower output voltages and low current loads down to an input of 2V at 25°C. Electrical Characteristics Limits in standard typeface are for TJ = 25°C and limits in boldface apply over the full operating temperature range. Unless otherwise specified, VIN = VOUT + 1V, IL = 1000mA, CL = 10µF. The MIC2941A is programmed to output 5V and has VSHUTDOWN 0.6V. Symbol Parameter Condition Min Typ Max Units VO Output Voltage Accuracy 5 mA ≤ IL ≤ 1A –1 –2 –2.5 1 2 2.5 % % % ∆VO ∆T Output Voltage Temperature Coefficient (Note 2) 20 100 ppm/°C Line Regulation IO = 10mA, (VOUT + 1V) ≤ VIN ≤ 26V 0.06 0.50 % ∆VO VO Load Regulation IL = 5mA to 1.25A IL = 5mA to 1A (Note 3) 0.04 0.16 0.20 % % VIN – VO Dropout Voltage (Note 4) IL = 5mA IL = 250mA IL = 1000mA IL = 1250mA 60 200 350 400 150 180 250 320 450 600 600 mV mV mV mV mV mV mV IGND Ground Pin Current (Note 5) IL = 5mA IL = 250mA IL = 1000mA IL = 1250mA 240 3 22 35 500 4.5 6 35 45 70 µA mA mA mA mA mA IGNDDO Ground Pin Current at Dropout (Note 5) VIN = 0.5V less than designed VOUT (VOUT 3.3) IL = 5mA 330 600 µA ILIMIT Current Limit VOUT = 0V (Note 6) 1.6 3.5 A ∆VO ∆PD Thermal Regulation (Note 7) 0.05 0.2 %/W en Output Noise Voltage (10Hz to 100kHz) IL = 100mA CL = 10µF CL = 33µF 400 260 µVRMS µVRMS |
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