MIC5295 Low Quiescent Current, 150mA LDO Regulator General Description Features The MIC5295 is a 150mA highly accurate, low dropout Wide input voltage range: 2.3V to 24V regulator with high input voltage and low ground current. Ultra low ground current: 18A This combination of high voltage and low ground current Low dropout voltage: 300mV at 150mA makes the MIC5295 ideal for USB and portable electronics High initial output accuracy: 1.0% applications, using 1-cell, 2-cell or 3-cell Li-Ion battery inputs. Stable with ceramic or tantalum capacitors Excellent line and load regulation specifications A Cap LDO design, the MIC5295 is stable with either a ceramic or tantalum output capacitor. It only requires a Reverse battery protection 2.2F capacitor for stability. Reverse leakage protection Features of the MIC5295 includes enable input, thermal Thermal shutdown and current limit protection shutdown, current limit, reverse battery protection, and PowerTO-252-5 (D-Pak)package reverse leakage protection. Adjustable output from 1.24V-20V Available in fixed and adjustable output voltage versions, the MIC5295 is offered in the TO-252-5 (D-Pak) 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 Ground Current vs. Input Voltage 100 90 80 70 60 10mA 50 40 100A 30 20 10 0 4 8 12 16 20 24 INPUT VOLTAGE (V) 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. MIC5295 Ordering Information Part Number Marking Code Voltage Junction Temp. Range Package MIC5295-3.0YD 5295-30Y 3.0V 40 to +125C 5-Pin TO-252 MIC5295-3.3YD 5295-33Y 3.3V 40 to +125C 5-Pin TO-252 MIC5295-5.0YD 5295-50Y 5.0V 40 to +125C 5-Pin TO-252 MIC5295YD 5295YD Adj 40 to +125C 5-Pin TO-252 Pin Configuration 5-Pin TO-252 Pin Description Pin Number Pin Name Pin Function 1 EN Enable (Input): Logic low = shutdown logic high = enable. Do not leave floating. 2 VIN Supply Input. 3 GND Ground. 4 VOUT Regulator Output. 5 NC(fixed) No Connect. ADJ(adj) Adjust (Input): Feedback input. Connect to resistive Voltage-divider network. M9999-110209-A November 2009 2