MIC5512/14 Single 300mA LDO in 1.6mm 1.6mm Thin DFN Package General Description Features The MIC5512/14 is an advanced general-purpose LDO Input voltage range: 2.5V to 5.5V ideal for powering general-purpose portable devices. The Fixed output voltage range: 1.0V to 3.3V MIC5512/14 family of products provides a high- 300mA guaranteed output current performance 300mA LDO in an ultra-small 1.6mm x 1% initial output accuracy 1.6mm Thin DFN package. The MIC5512 and MIC5514 LDOs include an auto-discharge feature on the output that Stable with 1F ceramic output capacitors is activated when the enable pin is low. The MIC5514 have Low dropout voltage: 160mV 300mA an internal pull down resistor on the enable pin that will Output discharge circuit disable the output when the enable pin is left floating, this Internal enable pull down resistor (MIC5514) is ideal for applications where the control signal is floating Available in ultra-small 6-pin 1.6mm 1.6mm Thin DFN during processor boot up. package Ideal for battery-powered applications, the MIC5512/14 offers a typical 1% initial accuracy, low dropout voltage Applications (160mV at 300mA), and low ground current (typically Smart phones 38A). The MIC5512/14 can also be put into a zero-off- mode current state, drawing virtually no current when DSCs, GPS, PMPs, and PDAs disabled. Medical devices The MIC5512/14 has an operating junction temperature Portable electronics range of 40C to 125C. 5V systems Datasheets and support documentation are available on Micrels web site at: www.micrel.com. Typical Application Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC5512/14 Ordering Information EN Marking Output Auto- Temperature (2,3) Part Number Package (1) Code Voltage Discharge Range Pull-down MIC5512-1.2YMT 7E 1.2V YES NO 40C to +125C 6-Pin 1.6mm x 1.6mm Thin DFN MIC5512-1.8YMT 7D 1.8V YES NO 40C to +125C 6-Pin 1.6mm x 1.6mm Thin DFN MIC5512-2.8YMT 7C 2.8V YES NO 40C to +125C 6-Pin 1.6mm x 1.6mm Thin DFN MIC5512-3.3YMT 7A 3.3V YES NO 40C to +125C 6-Pin 1.6mm x 1.6mm Thin DFN MIC5514-1.2YMT B8 1.2V YES YES 40C to +125C 6-Pin 1.6mm x 1.6mm Thin DFN MIC5514-1.8YMT B7 1.8V YES YES 40C to +125C 6-Pin 1.6mm x 1.6mm Thin DFN MIC5514-2.8YMT A9 2.8V YES YES 40C to +125C 6-Pin 1.6mm x 1.6mm Thin DFN MIC5514-3.0YMT A8 3.0V YES YES 40C to +125C 6-Pin 1.6mm x 1.6mm Thin DFN MIC5514-3.3YMT A7 3.3V YES YES 40C to +125C 6-Pin 1.6mm x 1.6mm Thin DFN Notes: 1. Other voltages are available. Contact Micrel for details. 2. Thin DFN = Pin 1 identifier. 3. Thin DFN is a GREEN RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. Pin Configuration 6-Pin 1.6mm 1.6mm Thin DFN (MT) (Top View) Pin Description Pin Number Pin Name Pin Function Enable Input: Active High. High = ON Low = OFF. MIC5512 do not leave floating. MIC5514 has an 1 EN internal 4M pull down resistor and will disable VOUT when EN is floating. 2, 5 NC Not Connected. 3 VIN Input Supply. Output Voltage. When disabled the MIC5512/14 switches in an internal 25 load to discharge the 4 VOUT external capacitors. 6 GND Ground. EP ePad Exposed Heatsink Pad. Connect to GND for best performance. Revision 1.1 April 8, 2013 2