SM72238TDX-3.3

SM72238 SolarMagic Micropower Voltage Regulators May 9, 2011 SM72238 SolarMagic Micropower Voltage Regulator General Description The SM72238 is a micropower voltage regulator with very low quiescent current (75μA typ.) and very low dropout voltage (typ. 40mV at light loads and 380mV at 100mA). It is ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the SM72238 increases only slightly in dropout, prolonging battery life. The SM72238 is available in the surface-mount D-Pak package. Careful design of the SM72238 has minimized all contributions to the error budget. This includes a tight initial tolerance (.5% typ.), extremely good load and line regulation (.05% typ.) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference. Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Renewable Energy Grade High accuracy output voltage Guaranteed 100mA output current Extremely low quiescent current Low dropout voltage Extremely tight load and line regulation Very low temperature coefficient Use as Regulator or Reference Needs minimum capacitance for stability Current and Thermal Limiting Stable with low-ESR output capacitors (10mΩ to 6Ω) Block Diagram and Typical Applications SM72238 30141325 © 2011 National Semiconductor Corporation 301413 www.national.com SM72238 Connection Diagrams TO-252 (D-Pak) 30141370 Front View Ordering Information Package TO-252 (DPAK) TO-252 (DPAK) TO-252 (DPAK) Temperature Range -40