MIC5019
Ultra-Small High-Side N-Channel MOSFET Driver
with Integrated Charge Pump General Description
The MIC5019 is a high-side MOSFET driver with
integrated charge pump designed to switch an NChannel enhancement type MOSFET control signal in
high-side or low–side applications.
The MIC5019 operates from a 2.7V to 9V supply, and
generates gate voltages of 9.2V from a 3V supply, and
16V from a 9V supply. The device consumes a low 77ВµA
of supply current and less than 1ВµA of supply current in
shutdown mode.
In high side configurations, the source voltage of the
MOSFET approaches the supply voltage when switched
on. To keep the MOSFET turned on, the MIC5019’s
output drives the MOSFET gate voltage higher than the
supply voltage.
The MIC5019 is available in an ultra-small 4-pin 1.2mm
x 1.2mm Thin QFN Package and is rated for –40°C to
+125В°C junction temperature range. Features 4-pin 1.2mm x 1.2mm Thin QFN Package
+2.7V to +9V supply voltage range
16V gate drive at VDD = 9V
8V gate drive at VDD = 2.7V
Operates in low and high side configurations …
