MIC5363/4 High-PSRR, 300mA, Cap LDO in 1.2mm 1.2mm Thin MLF General Description Features The MIC5363/4 is an advanced, 300mA LDO ideal for 2.5V to 5.5V input voltage range powering general purpose portable devices requiring a 300mA output high power supply rejection ratio (PSRR). The MIC5363/4 High output accuracy : 2% integrates a high-performance, 300mA LDO into a tiny Low quiescent current : typically 38A 1.2mm x 1.2mm Thin MLF package. Stable with 1F ceramic capacitors The MIC5363/4 is designed to reject input noise and provide a low output noise regulator with fast transient High PSRR (70dB 1kHz) response to respond to any load change quickly. The Low dropout voltage : 225mV at 300mA MIC5364 also incorporates an active discharge feature Thermal-shutdown protection that switches a 30 NFET from VOUT to GND to Current-limit protection discharge output capacitors when the part is disabled. Active Output discharge circuit : MIC5364 The MIC5363/4 is available in fixed output voltages in 6-pin 1.2mm x 1.2mm Thin MLF package lead-free (RoHS-compliant) 6-pin 1.2mm x 1.2mm Thin MLF leadless package. Data sheets and support documentation can be found on Applications Micrels web site at: www.micrel.com. Mobile phones GPS, PMP, and DSC Battery-powered electronics Noise Sensitive Applications Typical Application Camera DSP Power Supply MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC5363/4 Ordering Information Marking Junction (1) (2) (3) Part Number Voltage Package Lead Finish Code Temperature Range MIC5363-1.2YMT 34 1.2 40C to +125 C 6-Pin 1.2 mm 1.2mm Thin MLF Pb-Free MIC5363-2.8YMT 3G 2.8 40C to +125 C 6-Pin 1.2 mm 1.2mm Thin MLF Pb-Free MIC5363-3.3YMT 3S 3.3 40C to +125 C 6-Pin 1.2 mm 1.2mm Thin MLF Pb-Free (4) MIC5364-1.2YMT 44 1.2 40C to +125 C 6-Pin 1.2 mm 1.2mm Thin MLF Pb-Free (4) MIC5364-2.8YMT 4X 2.8 40C to +125 C 6-Pin 1.2 mm 1.2mm Thin MLF Pb-Free (4) MIC5364-3.3YMT 4S 3.3 Pb-Free 40C to +125 C 6-Pin 1.2 mm 1.2mm Thin MLF Notes: 1. Other voltages available. Contact Micrel for details. 2. = Pin 1 identifier. 3. Green, RoHS-compliant. Level finish is NiPdAu. Mold compound is Halogen free. 4. MIC5364 offers Auto-Discharge function. Pin Configuration 6-Pin 1.2mm 1.2mm Thin MLF (MT) Pin Description Pin Number Pin Name Pin Function 1 N/C Not internally connected. 2 N/C Not internally connected. 3 GND Ground. 4 VIN Supply Input. Decouple with 1F ceramic capacitor. 5 VOUT Output Voltage. Decouple with 1F ceramic capacitor. 6 EN Enable Input. Active HIGH. Logic HIGH = ON, logic LOW = OFF. Do not leave floating. EP ePad Exposed Heatsink Pad. Connect to ground for best thermal performance. M9999-043012-A April 2012 2