MIC5235-1.5YM5-TR Microchip

MIC5235 Ultra-Low Quiescent Current, 150mA Cap LDO Regulator General Description Features The MIC5235 is a 150mA highly accurate, low dropout Wide input voltage range: 2.3V to 24V regulator with high input voltage and ultra-low ground Ultra low ground current: 18A current. This combination of high voltage and low ground Low dropout voltage: 310mV at 150mA current makes the MIC5235 ideal for USB and portable High output accuracy: 2.0% over temperature electronics applications, using 1-cell, 2-cell or 3-cell Li-Ion battery inputs. Cap: stable with ceramic or tantalum capacitors A Cap LDO design, the MIC5235 is stable with either Excellent line and load regulation specifications ceramic or tantalum output capacitor. It only requires a Zero shutdown current 2.2F capacitor for stability. Reverse battery protection Features of the MIC5235 includes enable input, thermal Reverse leakage protection shutdown, current limit, reverse battery protection, and Thermal shutdown and current limit protection reverse leakage protection. IttyBitty SOT-23-5 package Available in fixed and adjustable output voltage versions, Adjustable output from 1.24V-20V the MIC5235 is offered in the IttyBitty SOT-23-5 package with a junction temperature range of 40C to +125C. Applications USB power supply Cellular phones Keep-alive supply in notebook and portable computers Logic supply for high-voltage batteries Automotive electronics Battery powered systems Typical Application 40 35 MIC5235BM5 V V =1.8V IN OUT 15 30 I = 1mA OUT 2 I = 100A R C =2.2F 1 OUT OUT C =1.0F IN 25 34 ceramic 20 I =18A EN GND R 2 15 I =10A OUT 10 49 14 19 24 INPUT VOLTAGE (V) Ultra-Low Current Adjustable Regulator Application Ground Current vs. Input Voltage 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. MIC5235 Ordering Information Part Number Marking Codes Junction Voltage** Temp. Range Package Standard Pb-Free Standard Pb-Free* MIC5235-1.5BM5 MIC5235-1.5YM5 L215 L215 1.5V 40 to +125C 5-Pin SOT-23 MIC5235-1.8BM5 MIC5235-1.8YM5 L218 L218 1.8V 40 to +125C 5-Pin SOT-23 MIC5235-2.5BM5 MIC5235-2.5YM5 L225 L225 2.5V 40 to +125C 5-Pin SOT-23 MIC5235-2.7BM5 MIC5235-2.7YM5 L227 L227 2.7V 40 to +125C 5-Pin SOT-23 MIC5235-3.0BM5 MIC5235-3.0YM5 L230 L230 3.0V 40 to +125C 5-Pin SOT-23 MIC5235-3.3BM5 MIC5235-3.3YM5 L233 L233 3.3V 40 to +125C 5-Pin SOT-23 MIC5235-5.0BM5 MIC5235-5.0YM5 L250 L250 5.0V 40 to +125C 5-Pin SOT-23 MIC5235BM5 MIC5235YM5 L2AA L2AA Adj. 40 to +125C 5-Pin SOT-23 * Under bar symbol ( ) may not be to scale. ** Contact factory regarding availability for voltages not listed. Pin Configuration EN GND IN EN GND IN 3 2 1 3 2 1 L2xx L2xx L2xx L2xx 45 45 NC ADJ OUT OUT SOT-23-5 (Fixed) SOT-23-5 (Adjustable) Pin Description Pin Number Pin Name Pin Function 1 IN Supply Input. 2 GND Ground. 3 EN Enable (Input): Logic low = shutdown logic high = enable. 4 NC (fixed) No Connect. ADJ (adj.) Adjust (Input): Feedback input. Connect to resistive voltage-divider network. 5 OUT Regulator Output. M9999-051508 May 2008 2