LM3490

LM3490 www.ti.com SNVS012E – JUNE 1999 – REVISED APRIL 2013 LM3490 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with LogicControlled ON/OFF Check for Samples: LM3490 FEATURES 1 2 3.3, 5, 12, and 15V Versions Available Logic-Controlled ON/OFF Packaged in the Tiny 5-Lead SOT-23 Package APPLICATIONS Tiny Alternative to LM78LXX Series and Similar Devices Tiny 5V±5% to 3.3V, 100 mA Converter Post Regulator for Switching DC/DC Converter Bias Supply for Analog Circuits KEY SPECIFICATIONS 30V Maximum Input for Operation 1.2V Specified Maximum Dropout over Full Load and Temperature Ranges 100 mA Specified Load Current ±5% Specified Output Voltage Tolerance over Full Load and Temperature Ranges −40 to +125°C Junction Temperature Range for Operation DESCRIPTION The LM3490 is an integrated linear voltage regulator. It features operation from an input as high as 30V and a specified maximum dropout of 1.2V at the full 100 mA load. Standard packaging for the LM3490 is the 5-lead SOT-23 package. A logic-controlled ON/OFF feature makes the LM3490 ideal for powering subsystems ON and OFF as needed. The 5, 12, and 15V members of the LM3490 series are intended as tiny alternatives to industry standard LM78LXX series and similar devices. The 1.2V quasi low dropout of LM3490 series devices makes them a nice fit in many applications where the 2 to 2.5V dropout of LM78LXX series devices precludes their (LM78LXX series devices) use. The LM3490 series features...