MIC5200 Micrel, Inc. MIC5200 100mA Low-Dropout Regulator Features General Description The MIC5200 is an efcient linear voltage regulator with High output voltage accuracy very low dropout voltage (typically 17mV at light loads and Variety of output voltages 200mV at 100mA), and very low ground current (1mA at Guaranteed 100mA output 100mA output), offering better than 1% initial accuracy with Low quiescent current a logic compatible ON/OFF switching input. Designed espe- Low dropout voltage cially for hand-held battery powered devices, the MIC5200 Extremely tight load and line regulation is switched by a CMOS or TTL compatible logic signal. The Very low temperature coefcient ENABLE control may be tied directly to V if unneeded. Current and thermal limiting IN When disabled, power consumption drops nearly to zero. Zero OFF mode current The ground current of the MIC5200 increases only slightly in Logic-controlled electronic shutdown dropout, further prolonging battery life. Key MIC5200 features Available in 8-lead SOIC, MM8 8-lead MSOP, include protection against reversed battery, current limiting, and SOT-223 packages and over-temperature shutdown. Applications The MIC5200 is available in several xed voltages and ac- Cellular Telephones curacy congurations. Other options are available contact Laptop, Notebook, and Palmtop Computers Micrel for details. Battery Powered Equipment PCMCIA V and V Regulation/Switching CC PP Bar Code Scanners SMPS Post-Regulator/ DC to DC Modules High Efciency Linear Power Supplies Typical Application MIC5200-3.3 Output 1F Enable Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 MIC5200 Micrel, Inc. Ordering Information Part Number Voltage Accuracy Junction Temp. Range* Package Standard Pb-Free MIC5200-3.0BM MIC5200-3.0YM 3.0 1% -40C to +125C 8-Pin SOIC MIC5200-3.3BM MIC5200-3.3YM 3.3 1% -40C to +125C 8-Pin SOIC MIC5200-4.8BM MIC5200-4.8YM 4.8 1% -40C to +125C 8-Pin SOIC MIC5200-5.0BM MIC5200-5.0YM 5.0 1% -40C to +125C 8-Pin SOIC MIC5200-3.3BMM MIC5200-3.3YMM 3.3 1% -40C to +125C 8-Pin MSOP MIC5200-5.0BMM MIC5200-5.0YMM 5.0 1% -40C to +125C 8-Pin MSOP MIC5200-3.0BS MIC5200-3.0YS 3.0 1% -40C to +125C 3-lead SOT-223 MIC5200-3.3BS MIC5200-3.3YS 3.3 1% -40C to +125C 3-lead SOT-223 MIC5200-4.8BS MIC5200-4.8YS 4.8 1% -40C to +125C 3-lead SOT-223 MIC5200-5.0BS MIC5200-5.0YS 5.0 1% -40C to +125C 3-lead SOT-223 * Other voltage options available. Contact Micrel Marketing for information. Pin Conguration OUT IN OUT IN NC NC GND EN 1 2 3 MIC5200-x.xBM IN GND OUT (SOIC-8) MIC5200-x.xBM MIC5200-x.xBS (MSOP-8) (SOT-223) EN may be tied directly to V IN Pin Description Pin Number Pin Number Pin Name Pin Function SOT-223 SO-8, MSOP-8 3 1, 2 OUT Output: Pins 1 and 2 must be externally connected together. 3, 6 NC (not internally connected): Connect to ground plane for lowest thermal resis- tance. 2, TAB 4 GND Ground: Ground pin and TAB are internally connected. 5 EN Enable/Shutdown (Input): TTL compatible input. High = enabled low = shutdown. 1 7, 8 IN Supply Input: Pins 7 and 8 must be extenally connected together. April 2005 2 M9999-040805