MIC5019YFT TR Microchip

MIC5019 Ultra-Small High-Side N-Channel MOSFET Driver with Integrated Charge Pump General Description Features The MIC5019 is a high-side MOSFET driver with integrated charge pump designed to switch an N- 4-pin 1.2mm x 1.2mm Thin QFN Package Channel enhancement type MOSFET control signal in +2.7V to +9V supply voltage range high-side or lowside applications. 16V gate drive at VDD = 9V The MIC5019 operates from a 2.7V to 9V supply, and 8V gate drive at VDD = 2.7V generates gate voltages of 9.2V from a 3V supply, and 16V from a 9V supply. The device consumes a low 77A Operates in low and high side configurations of supply current and less than 1A of supply current in 150A (typical) supply current at VDD = 5V shutdown mode. <1A shutdown supply current In high side configurations, the source voltage of the 40C to +125C Junction Temperature Range MOSFET approaches the supply voltage when switched on. To keep the MOSFET turned on, the MIC5019s output drives the MOSFET gate voltage higher than the Applications supply voltage. Load Switch The MIC5019 is available in an ultra-small 4-pin 1.2mm Solenoid Drivers x 1.2mm Thin QFN Package and is rated for 40C to +125C junction temperature range. Motor Drivers Application Diagram Low-Voltage High-Side Power Switch Low-Side Power Switch Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC5019 Ordering Information Part Number Marking Package Junction Temperature Range Lead Finish MIC5019YFT H9 4-pin 1.2mm x 1.2mm Thin QFN -40C to +125C Pb-Free Note: Thin QFN pin 1 identifier = Pin Configuration 1.2mm x 1.2mm Thin QFN (FT) (TOP View) Pin Description Pin Pin Name Pin Function Number 1 VDD Supply Voltage: +2.7V to +9V supply. 2 GND Ground. Control Input: Logic high drives the gate output above the supply voltage. Logic low forces the 3 IN gate output near ground. Do not leave this pin floating. 4 OUT Gate Output: Connection to gate of external MOSFET. July 2012 2