DESCRIPTION
The µPA1809 is a switching device which can be driven directly by a 4.0 V power source.
This device features a low on-state resistance and excellent switching characteristics, and is suitable for applications such as DC/DC Converters and power management of notebook computers and so on.

FEATURES
• 4.0 V drive available
• Low on-state resistance
    RDS(on)1 = 21 mΩ MAX. (VGS = 10 V, ID = 4.0 A)
    RDS(on)2 = 29 mΩ MAX. (VGS = 4.5 V, ID = 4.0 A)
    RDS(on)3 = 32 mΩ MAX. (VGS = 4.0 V, ID = 4.0 A)
• Built-in G-S protection diode against ESD