MIC5237 Micrel Semiconductor, MIC5237 Datasheet
MIC5237
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MIC5237 Summary of contents
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... Key features include low ground current to help prolong battery life, reversed-battery protection, current limiting, over- temperature shutdown, and thermally efficient packaging. The MIC5237 is available in fixed output voltages only. For space-critical applications and improved performance, see the MIC5209 and MIC5219. For output current require- ments up to 750mA, see the MIC2937 ...
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... C to +125 C J Lead Temperature (soldering, 5 sec.) ....................... 260 C MIC5237 3 OUT 2 GND 1 IN MIC5237-x.xBT (TO-220-3) 3 OUT 2 GND 1 IN MIC5237-x.xBU (TO-263-3) are internally connected. TAB Operating Ratings Input Voltage (V ) ....................................... +2.5V to +16V IN Junction Temperature (T Package Thermal Resistance TO-220 ( ) ....................................................... 55 C/W JA TO-220 ( ) ......................................................... 3 C/W JC TO-263 ( ) ......................................................... 3 C/W ...
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... The maximum allowable power Exceeding the maximum allowable power dissipa Micrel Max Units ppm/ C 0.05 %/V 0.1 %/V 0 190 mV 280 mV 350 mV 450 mV 600 mV 700 mV 130 A 170 A 650 A 900 A 2 900 mA 1000 %/W nV/ Hz MIC5237 ...
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... MIC5237 Block Diagram V IN MIC5237 IN Bandgap Ref. Current Limit Thermal Shutdown MIC5237-x.x GND Fixed Regulator 4 Micrel OUT V OUT C OUT January 2000 ...
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... VOLTAGE DROP (V) 5 Micrel Power Supply Rejection Ratio -20 OUT -40 - 100mA -80 OUT OUT -100 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7 1k 10k 100k 1M 10M 10 100 FREQUENCY (Hz) Noise Performance 10 1 100mA 0.1 10mA 0. 1mA OUT 0.001 OUT electrolytic 0.0001 10 1k 10k 100k 1M 10M 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7 100 FREQUENCY (Hz) MIC5237 ...
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... For 2.5V applications output capacitor is recom- mended to reduce startup voltage overshoot. No-Load Stability The MIC5237 will remain stable and in regulation with no load (other than the internal voltage divider) unlike many other voltage regulators. This is especially important in CMOS RAM keep-alive applications. ...
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... TO-220 (T) 0.405 0.005 0.050 0.005 0.360 0.005 0.600 0.025 0.050 0.015 0.002 3-Lead TO-263 (U) 7 0.050 0.005 (1.27 0.13 0.100 0.020 (2.54 0.51) DIMENSIONS: INCH (MM) 0.176 0.005 0.050 0.005 SEATING PLANE 0.004 +0.004 –0.008 0.100 0.01 8 MAX Micrel MIC5237 ...
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... This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. MIC5237 + 1 (408) 944-0970 http://www ...