MIC5316-GGCYMT-TR Microchip

MIC5316 Low Voltage Dual 300mA LDO with Power on Reset and Voltage Select General Description Features The MIC5316 is a high performance, dual low input 300mA output current for each LDO voltage, low dropout regulator with Power On Reset (POR) Dual low voltage regulator inputs: 1.7V to 5.5V and voltage select. Major features include two 300mA Low output voltage range: 0.8V to 2.0V LDOs, input voltage down to 1.7V, ultra low drop out of Ultra-low dropout voltage of 85mV 300mA 85mV at full load, Power on Reset, and voltage select. Each LDO has its own low voltage input for system Voltage select function flexibility. The low input voltages and low drop out Power On Reset output with adjustable delay operation provides high efficiency by reducing the input to Stable with 1F ceramic output capacitors output voltage step which minimizes the regulator power Very fast transient response loss. Voltage select is incorporated into the second output, Thermal shutdown and current limit protection which reduces the output voltage to further save power while in stand-by mode. An adjustable delay time POR Tiny 12-pin 2.5mm x 2.5mm Thin MLF package output is provided for the second regulator for design flexibility. Applications Ideal for battery operated applications the MIC5316 offers 1% accuracy and low ground current to increase light load Mobile Phones efficiency. The MIC5316 can also be put into a zero-off- GPS and Navigation Devices mode current state, drawing virtually no current when Portable Media Players disabled. Digital still and video cameras The MIC5316 is available in fixed output voltages in the PDAs 12-pin 2.5mm x 2.5mm Thin MLF leadless package. Portable electronics Data sheets and support documentation can be found on Micrels web site at: www.micrel.com. Typical Application VI/O MIC5316-xxyYMT MIC23031-1.8YMT VBAT DC-to-DC VIN1 VOUT1 VCORE1 Converter VIN2 VCORE2 VBIAS VOUT2 /VSC2 POR2 CIN CBIAS 1F 1F EN1 CBYP 1F 1F CSET2 EN2 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. MIC5316 Ordering Information (1) (2) (2) (3) Part Number Manufacturing Marking VOUT1 VOUT2 Junction Package Part Number Temp. Range 12-Pin 2.5mm x 2.5mm MIC5316-1.5/1.2/1.0YMT MIC5316-F4CYMT QSF4C 1.5V 1.2V/1.0V 40C to +125C Thin MLF 12-Pin 2.5mm x 2.5mm MIC5316-1.5/1.3/1.0YMT MIC5316-F5CYMT QSF5C 1.5V 1.3V/1.0V 40C to +125C Thin MLF 12-Pin 2.5mm x 2.5mm MIC5316-1.8/1.6/1.1YMT MIC5316-GW3YMT QSGW3 1.8V 1.6V/1.1V 40C to +125C Thin MLF 12-Pin 2.5mm x 2.5mm MIC5316-1.8/1.8/1.0YMT MIC5316-GGCYMT QSGGC 1.8V 1.8V/1.0V 40C to +125C 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 /VSC2 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 /VSC2 Voltage Select Input for LDO2. Active Low Input. Logic High = Full Output Voltage Logic Low = Low Output Voltage. Do not leave floating. 11 VOUT2 Output of regulator 2. 12 VOUT1 Output of regulator 1. M9999-070208-A July 2008 2