MIC5501/2/3/4 Single 300mA LDO in 1.0mm 1.0mm DFN Package General Description Features The MIC5501/2/3/4 is an advanced general-purpose LDO Input voltage range: 2.5V to 5.5V ideal for powering general-purpose portable devices. The Fixed output voltages from 1.0V to 3.3V MIC5501/2/3/4 family of products provides a high- 300mA guaranteed output current performance 300mA LDO in an ultra-small 1mm 1mm High output accuracy (2%) package. The MIC5502 and MIC5504 LDOs include an auto-discharge feature on the output that is activated when Low quiescent current: 38A the enable pin is low. The MIC5503 and MIC5504 have an Stable with 1F ceramic output capacitors internal pull-down resistor on the enable pin that disables Low dropout voltage: 160mV 300mA the output when the enable pin is left floating. This is ideal Output discharge circuit: MIC5502, MIC5504 for applications where the control signal is floating during Internal enable pull-down: MIC5503, MIC5504 processor boot up. Thermal-shutdown and current-limit protection Ideal for battery-powered applications, the MIC5501/2/3/4 offers 2% initial accuracy, low dropout voltage (160mV at 4-lead 1.0mm 1.0mm Thin DFN package 300mA), and low ground current (typically 38A). The MIC5504 5-pin SOT23 package MIC5501/2/3/4 can also be put into a zero-off-mode current state, drawing virtually no current when disabled. Applications The MIC5501/2/3/4 has an operating junction temperature range of 40C to 125C. Smartphones Datasheets and support documentation can be found on DSC, GPS, PMP, and PDAs . Micrels web site at: www.micrel.com Medical devices Portable electronics 5V systems Typical Application Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC5501/2/3/4 Ordering Information Marking Output Auto- EN Temperature (2,3) Part Number (1) Package Code Voltage Discharge Pull-Down Range (4) MIC5501-3.3YMT VS 3.3V NO NO 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5501-3.0YMT VP 3.0V NO NO 40C to +125C 4-Pin 1mm x 1mm Thin DFN (4) MIC5501-2.8YMT VM 2.8V NO NO 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5501-1.8YMT VG 1.8V NO NO 40C to +125C 4-Pin 1mm x 1mm Thin DFN (4) MIC5501-1.2YMT V4 1.2V NO NO 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5501-3.0YM5 VX 3.0V NO NO 40C to +125C 5-Pin SOT23 (4) MIC5502-3.3YMT XS 3.3V YES NO 40C to +125C 4-Pin 1mm x 1mm Thin DFN (4) MIC5502-3.0YMT XP 3.0V YES NO 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5502-2.8YMT XM 2.8V YES NO 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5502-1.8YMT XG 1.8V YES NO 40C to +125C 4-Pin 1mm x 1mm Thin DFN (4) MIC5502-1.2YMT X4 1.2V YES NO 40C to +125C 4-Pin 1mm x 1mm Thin DFN (4) MIC5503-3.3YMT SV 3.3V NO YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN (4) MIC5503-3.0YMT ZV 3.0V NO YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN (4) MIC5503-2.8YMT MV 2.8V NO YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5503-1.8YMT YV 1.8V NO YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN (4) MIC5503-1.2YMT XV 1.2V NO YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5504-3.3YMT SX 3.3V YES YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5504-3.1YMT TX 3.1V YES YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5504-3.0YMT PX 3.0V YES YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5504-2.8YMT MX 2.8V YES YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5504-2.5YMT UX 2.5V YES YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5504-2.2YMT UW 2.2V YES YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5504-1.8YMT GX 1.8V YES YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5504-1.2YMT ZX 1.2V YES YES 40C to +125C 4-Pin 1mm x 1mm Thin DFN MIC5504-3.3YM5 WXS 3.3V YES YES 40C to +125C 5-Pin SOT23 MIC5504-2.8YM5 WXM 2.8V YES YES 40C to +125C 5-Pin SOT23 MIC5504-2.5YM5 WXJ 2.5V YES YES 40C to +125C 5-Pin SOT23 MIC5504-1.8YM5 WXG 1.8V YES YES 40C to +125C 5-Pin SOT23 MIC5504-1.2YM5 WX4 1.2V YES YES 40C to +125C 5-Pin SOT23 Notes: 1. Other voltages 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. 4. Contact Micrel Marketing for availability. Revision 2.3 April 20, 2015 2