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MIC5237-2.5BT Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC5237-2.5BT Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 8 page January 2000 1 MIC5237 MIC5237 Micrel Typical Application MIC5237 500mA Low-Dropout Regulator Preliminary Information General Description The MIC5237 is a general-purpose low-dropout regulator capable of 500mA output current with better than 3% output voltage accuracy. Using Micrel’s proprietary Super ßeta PNP™ process with a PNP pass element, these regu- lators feature less than 300mV dropout voltage and typically 8mA ground current at full load. Designed for applications that require moderate current over a broad input voltage range, including hand-held and battery- powered devices, the MIC5237 is intended for applications that can tolerate moderate voltage drop at higher current. 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. Features • Guaranteed 500mA output over the full operating temperature range • Low 300mV typical dropout voltage at full load • Extremely tight load and line regulation • Current and thermal limiting • Reversed-battery protection • TO-220 and TO-263 packages • Low temperature coefficient • No-load stability • Low-noise output Applications • Portable and laptop computers • Desktop computer • Battery chargers • SMPS post-regulator/dc-to-dc modules • Consumer and personal electronics Ordering Information Part Number Voltage Junct. Temp. Range Package MIC5237-2.5BT 2.5V –40 °C to +125°C TO-220 MIC5237-2.5BU 2.5V –40 °C to +125°C TO-263 MIC5237-3.3BT 3.3V –40 °C to +125°C TO-220 MIC5237-3.3BU 3.3V –40 °C to +125°C TO-263 MIC5237-5.0BT 5.0V –40 °C to +125°C TO-220 MIC5237-5.0BU 5.0V –40 °C to +125°C TO-263 MIC5237-5.0 IN OUT GND 1.0µF 1.0µF tantalum VIN ≥5.6V VOUT 5.0V ±3% Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com |
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