MIC61300-10YMME Microchip

MIC61300 Low Input Voltage, Single-Supply High-Current LDO General Description Features The Micrel MIC61300 is a 3A output, low input voltage, Single V rail: 1.1V to 3.6V IN single-supply regulator. This regulator operates over a Output voltage accuracy: 2.5% over temperature single input voltage range of 1.1V to 3.6V and offers an Typical dropout of 150mV at room temperature ultra-low dropout less than 350mV over the entire Maximum dropout of 350mV at full load over operating temperature range. temperature The MIC61300 is designed to drive digital circuits requiring Output voltage adjustable down to 0.5V low voltages at high currents such as DSPs, FPGAs, Soft-start control via external capacitor microcontrollers, etc. The regulator is available as a 1.0V fixed-output voltage option or as an adjustable-output Excellent line and load regulation voltage option. Logic controlled shutdown The MIC61300 is stable with a 47F, low-ESR ceramic Thermal-shutdown and current-limit protection output capacitor, and includes protection features such as 10-pin 3mm 3mm MLF package thermal shutdown, current limiting and logic enable. 10-pin ePad MSOP package The MIC61300 is offered in two different packages: a low- Junction temperature range from 40C to +125C profile, leadless 10-pin 3mm x 3mm MLF and a 10-pin ePad MSOP. The MIC61300 has an operating junction temperature range of 40C to +125C. Applications Data sheets and support documentation can be found on Point-of-load applications Micrels web site at: www.micrel.com. ASIC / Microprocessor power supply FPGA power supply Telecom / Networking cards Wireless infrastructure Typical Application Dropout Voltage vs. Output Current 200 V = 1.5V IN V = 0V FB 150 T = 25C A 100 50 0 0.0 1.0 2.0 3.0 OUTPUT CURRENT (A) 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. MIC61300 Ordering Information Part Number Top Mark Voltage Temperature Range Package Lead Finish MIC61300YMME 61300 Adjustable 40C to +125C ePad MSOP-10L Pb Free MIC61300-10YMME Z10J 1.0V 40C to +125C ePad MSOP-10L Pb Free MIC61300YML ZJ30 Adjustable 40C to +125C 3mmx3mm MLF-10L Pb Free MIC61300-10YML 10ZJ 1.0V 40C to +125C 3mmx3mm MLF-10L Pb Free Pin Configuration 10-Pin ePad MSOP (MME) 10-Pin 3mm x 3mm MLF (ML) Pin Description Pin Number Pin Name Pin Function 1, 2 IN Input Voltage. 3 GND Ground: Input and output return pin. 4 EN Enable: Active-high control input that allows turn-on/-off of the LDO. 5, 6 NC No external function. Tie to ground. Internal Charge Pump Circuit Output: Connect a 0.1F to 1F capacitor from CP pin-to-GND to 7 CP control the ramp rate of the output. Adjustable Regulator Feedback Input: Connect to the resistor voltage divider network that is FB placed from OUT pin to GND pin in order to set the output voltage. 8 Fixed-Output Voltage Sense Input: Apply a Kelvin connection from this pin of the fixed output at SENSE the point-of-load to sense the output voltage level. Regulator Output: The output voltage is set by the resistor divider connected from V to GND OUT 9, 10 OUT (with the divided connection tied to FB). A 47F ceramic capacitor with low ESR is required to maintain stability. See Applications Information. EP GND Connect to GND. M9999-101111-B October 2011 2