MIC5225-5.0YM5-TR Microchip

MIC5225 Ultra-Low Quiescent Current 150mA Cap Low Dropout Regulator General Description Features The MIC5225 is a 150mA highly accurate, low dropout Wide input voltage range: 2.3V to 16V regulator with high input voltage and ultra-low ground High output accuracy of 2.0% over temperature current. This combination of high voltage and low ground Guaranteed 150mA output current makes the MIC5225 ideal for a wide variety of Very low ground current: 29A applications including USB and portable electronics applications, using 1-cell, 2-cell or 3-cell Li-Ion battery Low dropout voltage of 310mV at 150mA inputs. Cap: Stable with ceramic or tantalum capacitors A Cap LDO design, the MIC5225 is stable with either a Excellent line and load regulation specifications ceramic or tantalum output capacitor. It only requires a Reverse battery protection 2.2F capacitor for stability. Reverse leakage protection Features of the MIC5225 includes enable input, thermal Zero shutdown current shutdown, current limit, reverse battery protection, and Thermal shutdown and current limit protection reverse leakage protection. IttyBitty SOT23-5 Package Available in fixed and adjustable output voltage versions, the MIC5225 is offered in the IttyBitty SOT23-5 package with a junction temperature range of 40C to +125C. Applications Data sheets and support documentation can be found on Cellular phones Micrels web site at www.micrel.com. Keep alive supply in notebook and portable computers Battery-powered equipment Consumer/personal electronics High-efficiency linear power supplies Automotive electronics Typical Application Ground Pin Current vs. Input Voltage MIC5225YM5 40 V V = 1.8V IN OUT 15 38 2 36 R I = 1mA OUT 1 C = 1.0F 34 IN C = 2.2F OUT 34 32 ceramic I = 100A OUT OFF ON 30 EN R 2 I = 18A 28 GND I = 10A 26 OUT 24 22 20 4 6 8 10 12 14 16 Ultra-Low Current Adjustable Regulator Application INPUT VOLTAGE (V) IttyBitty is a registered 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. MIC5225 Ordering Information Part Number Marking* Voltage** Junction Temp. Range Package Lead Finish MIC5225-1.5YM5 QT15 1.5V 40 to +125C 5-Pin SOT23 Pb-Free MIC5225-1.8YM5 QT18 1.8V 40 to +125C 5-Pin SOT23 Pb-Free MIC5225-2.5YM5 QT25 2.5V 40 to +125C 5-Pin SOT23 Pb-Free MIC5225-2.7YM5 QT27 2.7V 40 to +125C 5-Pin SOT23 Pb-Free MIC5225-3.0YM5 QT30 3.0V 40 to +125C 5-Pin SOT23 Pb-Free MIC5225-3.3YM5 QT33 3.3V 40 to +125C 5-Pin SOT23 Pb-Free MIC5225-5.0YM5 QT50 5.0V 40 to +125C 5-Pin SOT23 Pb-Free MIC5225YM5 QTAA Adj. 40 to +125C 5-Pin SOT23 Pb-Free * Under bar symbol ( ) may not be to scale. ** For other voltage options available. Contact Micrel Marketing for details. Pin Configuration EN GND IN 3 2 1 45 NC/ADJ OUT 5-Pin SOT23 (M5) Pin Description Pin Number Pin Name Pin Function 1 IN Supply Input. 2 GND Ground. 3 EN Enable (Input): Logic Low or Open = Shutdown Logic High = Enable. NC (Fixed) No Connect. 4 ADJ (Adjust) Adjust (Input): Feedback input. Connect to resistive voltage-divider network. 5 OUT Regulator Output. M9999-072908-A July 2008 2