MIC5019 Datasheet, PDF (1/12 Pages) Micrel Semiconductor – Ultra-Small High-Side N-Channel MOSFET Driver with Integrated Charge Pump

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 N-
Channel 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 77µA
of supply current and less than 1µA 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
+125°C junction temperature range.
Application Diagram
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
• 150µA (typical) supply current at VDD = 5V
• <1µA shutdown supply current
• –40˚C to +125˚C Junction Temperature Range
Applications
• Load Switch
• Solenoid Drivers
• Motor Drivers
Low-Voltage High-Side Power Switch
Low-Side Power Switch
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
July 2012
Preliminary and Confidential - Micrel