MIC5314-FCYMT-TR Microchip

MIC5314 Low Voltage Dual 300mA LDO with Power on Reset General Description Features The MIC5314 is a high performance, dual low input 300mA output current for each LDO voltage, low dropout regulator with Power On Reset Dual low voltage regulator inputs: 1.7V to 5.5V (POR). Major features include two 300mA LDOs, input Low output voltage range: 0.8V to 2.0V voltage down to 1.7V, ultra low drop out of 85mV at full Ultra-low dropout voltage of 85mV 300mA load, and Power On Reset. Each LDO has its own low voltage input for system flexibility. The low input voltages Power On Reset output with adjustable delay and low drop out operation provides high efficiency by Stable with 1F ceramic output capacitors reducing the input to output voltage step which minimizes Very fast transient response the regulator power loss. An adjustable delay time POR Thermal shutdown and current limit protection output is provided for the second regulator for design Tiny 12-pin 2.5mm x 2.5mm Thin MLF package flexibility. Ideal for battery operated applications the MIC5314 offers 1% accuracy and low ground current to increase light load Applications efficiency. The MIC5314 can also be put into a zero-off- Mobile Phones mode current state, drawing virtually no current when disabled. GPS and Navigation Devices The MIC5314 is available in fixed output voltages in the Portable Media Players 12-pin 2.5mm x 2.5mm Thin MLF leadless package. Digital still and video cameras Data sheets and support documentation can be found on PDAs Micrels web site at: www.micrel.com. Portable electronics Typical Application VI/O MIC5314-xxYMT MIC23031-1.8YMT VBAT DC-to-DC VIN1 VOUT1 VCORE1 Converter VIN2 VBIAS VOUT2 VCORE2 POR2 /RST CIN CBIAS 1F 1F EN1 CBYP 1F 1F EN2 CSET2 Processor 10nF GND MLF and MicroLeadFrame 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. MIC5314 Ordering Information (1) (2) (3) Part Number Manufacturing Marking Voltage Junction Temp. Package Part Number Range MIC5314-1.5/1.0YMT MIC5314-FCYMT QFRC 1.5V/1.0V 40C to +125C 12-Pin 2.5mm x 2.5mm Thin MLF MIC5314-1.5/1.1YMT MIC5314-F3YMT QFR3 1.5V/1.1V 40C to +125C 12-Pin 2.5mm x 2.5mm Thin MLF MIC5314-1.5/1.2YMT MIC5314-F4YMT QFR4 1.5V/1.2V 40C to +125C 12-Pin 2.5mm x 2.5mm Thin MLF MIC5314-1.5/1.3YMT MIC5314-F5YMT QFR5 1.5V/1.3V 40C to +125C 12-Pin 2.5mm x 2.5mm Thin MLF MIC5314-1.5/1.4YMT MIC5314-F6YMT QFR6 1.5V/1.4V 40C to +125C 12-Pin 2.5mm x 2.5mm Thin MLF MIC5314-1.5/1.5YMT MIC5314-FFYMT QFRF 1.5V/1.5V 40C to +125C 12-Pin 2.5mm x 2.5mm Thin MLF MIC5314-1.8/1.2YMT MIC5314-G4YMT QGR4 1.8V/1.2V 40C to +125C 12-Pin 2.5mm x 2.5mm Thin MLF MIC5314-1.8/1.8YMT MIC5314-GGYMT QGRG 1.8V/1.8V 40C to +125C 12-Pin 2.5mm x 2.5mm Thin MLF Notes: 1. Pin 1 identifier = . 2. For other voltage option, contact Micrel Marketing for details 3. MLF is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. Pin Configuration VIN1 1 12 VOUT1 VIN2 2 11 VOUT2 VBIAS 3 10 NC EN1 4 9 CBYP EN2 5 8 GND CSET2 6 7 POR2 12-Pin 2.5mm 2.5mm Thin MLF (MT) Pin Description Pin Number Pin Name Pin Function 1 VIN1 Voltage Input for LDO1. 2 VIN2 Voltage Input for LDO2. 3 VBIAS Bias Input Voltage. 4 EN1 Enable Input for LDO1. Active High Input. Logic High = On Logic Low = Off Do not leave floating. 5 EN2 Enable Input for LDO2. Active High Input. Logic High = On Logic Low = Off Do not leave floating. 6 CSET2 Delay Set Input for POR2. Connect an external capacitor to GND to set the delay for POR2. When left open, there is no delay. Do not ground this pin. 7 POR2 Power-on Reset for LDO2. 8 GND Ground. 9 CBYP Bypass: Connect a capacitor to ground to improve output noise and PSRR. 10 NC No Connect. Not internally connected. 11 VOUT2 Output of regulator 2. 12 VOUT1 Output of regulator 1. M9999-070208-A July 2008 2