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MIC5201BM Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC5201BM Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 12 page July 1998 1 MIC5201 MIC5201 Micrel MIC5201 200mA Low-Dropout Voltage Regulator General Description The MIC5201 is an efficient linear voltage regulator with very low dropout voltage (typically 17mV at light loads and 200mV at 100mA), and very low ground current (1mA at 100mA output), offering better than 1% initial accuracy with a logic compatible on-off switching input. Designed especially for hand-held battery powered devices, the MIC5201 can be switched by a CMOS or TTL compatible enable signal. This enable control may be connected directly to V IN if unneeded. When disabled, power consumption drops nearly to zero. The ground current of the MIC5201 increases only slightly in dropout, further prolonging battery life. Key MIC5201 features include current limiting, overtemperature shutdown, and protection against reversed battery. The MIC5201 is available in several fixed voltages and accuracy configurations. It features the same pinout as the LT1121 with better performance. Other options are available; contact Micrel for details. Typical Application ENABLE SHUTDOWN MIC5201-3.3 IN OUT GND 1µF VOUT 3.3V EN Features • High output voltage accuracy • Variety of output voltages • Guaranteed 200mA output • Low quiescent current • Low dropout voltage • Extremely tight load and line regulation • Very low temperature coefficient • Current and thermal limiting • Reversed-battery protection • Load-dump protection (fixed voltage versions) • Zero off-mode current • Logic-controlled electronic enable • Available in SO-8 and SOT-223 packages Applications • Cellular telephones • Laptop, notebook, and palmtop computers • Battery powered equipment • PCMCIA V CC and VPP regulation/switching • Bar code scanners • SMPS post-regulator/ dc-to-dc modules • High-efficiency linear power supplies Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com MM8 is a trademark of Micrel, Inc. Ordering Information Part Number Voltage Junction Temp. Range* Package MIC5201BM Adj –40 °C to +125°C SO-8 MIC5201-3.0BM 3.0 –40 °C to +125°C SO-8 MIC5201-3.3BM 3.3 –40 °C to +125°C SO-8 MIC5201-5.0BM 5.0 –40 °C to +125°C SO-8 MIC5201-3.0BS 3.0 –40 °C to +125°C SOT-223 MIC5201-3.3BS 3.3 –40 °C to +125°C SOT-223 MIC5201-4.8BS 4.85 –40 °C to +125°C SOT-223 MIC5201-5.0BS 5.0 –40 °C to +125°C SOT-223 Other voltages available. Contact Micrel for details. * Junction Temperature. |
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