MIC5206 150mA Low-Noise LDO Regulator General Description Features The MIC5206 is an efficient linear voltage regulator with Error flag indicates undervoltage fault very low dropout voltage (typically 17mV at light loads and High output voltage accuracy 165mV at 150mA), and very low ground current (600A at Guaranteed 150mA output 100mA output), with better than 1% initial accuracy. It has Ultra-low-noise output (8-pin versions) a logic compatible enable/shutdown control input and an internal undervoltage monitor. Low quiescent current Low dropout voltage Designed especially for hand-held, battery-powered devices, the MIC5206 can be switched by a CMOS or TTL Extremely tight load and line regulation compatible logic signal. When disabled, power Very low temperature coefficient consumption drops nearly to zero. Dropout ground current Current and thermal limiting is minimized to prolong battery life. Reversed-battery protection Key features include an undervoltage monitor with an error Zero off-mode current flag output, a reference bypass pin to improve its already Logic-controlled electronic enable low-noise performance (8-pin versions only), reversed- battery protection, current limiting, and overtemperature shutdown. Applications The MIC5206 is available in several fixed voltages in a tiny Cellular telephones SOT-23-5 package. It features a pinout, similar to the Laptop, notebook, and palmtop computers LP2980, but has significantly better performance. Fixed Battery-powered equipment and adjustable output voltage versions, featuring the PCMCIA V and V regulation/switching reference bypass option, are available in the 8-pin Micrel CC PP Mini 8 8-pin MSOP (micro small-outline package). Consumer/personal electronics SMPS post-regulator/dc-to-dc modules For low-dropout regulators that are stable with ceramic output capacitors, see the Cap MIC5245/6/7 family. High-efficiency linear power supplies Data sheets and support documentation can be found on Micrels web site at www.micrel.com. Typical Application SOT-23-5 Fixed Voltage Application Adjustable Voltage Application Micrel Mini 8 is a trademark of Micrel, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC5206 Ordering Information Part Number Standard Marking Pb-Free Marking Voltage* Junction Temp. Range Package MIC5206-2.5BM5 LD25 MIC5206-2.5YM5 LD25 2.5V 40 to +125C 5-Pin SOT-23 MIC5206-2.7BM5 LD27 MIC5206-2.7YM5 LD27 2.7V 40 to +125C 5-Pin SOT-23 MIC5206-3.0BM5 LD30 MIC5206-3.0YM5 LD30 3.0V 40 to +125C 5-Pin SOT-23 MIC5206-3.2BM5 LD32 MIC5206-3.2YM5 LD32 3.2V 40 to +125C 5-Pin SOT-23 MIC5206-3.3BM5 LD33 MIC5206-3.3YM5 LD33 3.3V 40 to +125C 5-Pin SOT-23 MIC5206-3.6BM5 LD36 MIC5206-3.6YM5 LD36 3.6V 40 to +125C 5-Pin SOT-23 MIC5206-3.8BM5 LD38 MIC5206-3.8YM5 LD38 3.8V 40 to +125C 5-Pin SOT-23 MIC5206-4.0BM5 LD40 MIC5206-4.0YM5 LD40 4.0V 40 to +125C 5-Pin SOT-23 MIC5206-5.0BM5 LD50 MIC5206-5.0YM5 LD50 5.0V 40 to +125C 5-Pin SOT-23 MIC5206BMM MIC5206YMM ADJ 40 to +125C 8-Pin MSOP MIC5206-3.0BMM MIC5206-3.0YMM 3.0V 40 to +125C 8-Pin MSOP MIC5206-3.3BMM MIC5206-3.3YMM 3.3V 40 to +125C 8-Pin MSOP MIC5206-3.6BMM MIC5206-3.6YMM 3.6V 40 to +125C 8-Pin MSOP MIC5206-3.8BMM MIC5206-3.8YMM 3.8V 40 to +125C 8-Pin MSOP MIC5206-4.0BMM MIC5206-4.0YMM 4.0V 40 to +125C 8-Pin MSOP MIC5206-5.0BMM MIC5206-5.0YMM 5.0V 40 to +125C 8-Pin MSOP * Other voltages available. Contact Micrel for details. M9999-051506 May 2006 2 (408) 955-1690