30V N-channel switch for 12V rails
It is built for low-voltage DC-DC conversion, load switching, and battery management in the 5V to 12V range — the 30V Vdss gives headroom on a 12V rail without forcing a larger package.
On-resistance and gate charge — switching loss budget
Maximum Rds(on) is 19 mOhm at 4.5A drain current with 10V gate drive. That figure is specified at 25°C junction; at 150°C the on-resistance roughly doubles, so the conduction loss at full load and high ambient needs to be derated accordingly. Gate charge totals 6 nC at 4.5V Vgs. For a 500 kHz switching regulator, the gate drive current required is about 3 mA — well within the capability of a standard MOSFET driver. The low Qg keeps switching losses manageable at moderate frequencies. Input capacitance Ciss is 900 pF at 25V Vds. This sets the drive impedance requirement for clean turn-on without ringing; a gate resistor in the 10-22 Ohm range is typical for this capacitance level.
Package and thermal path
The part comes in an 8-lead PowerVDFN, supplier device package PowerFlat 3.3x3.3 mm. Without that thermal connection, the 2W (Ta) power dissipation limit applies; with a good board thermal design, the 50W (Tc) limit is reachable. Mounting is surface-mount only. The package is compatible with standard reflow profiles; no special bake is required if the moisture-sensitive level (MSL) rating on the reel label is observed.
Temperature range and operating environment
The 150°C ceiling allows the part to run hot in a compact design as long as the board-level thermal resistance keeps Tj below the absolute maximum. Gate-source voltage is rated ±22V maximum, so standard 12V gate drive signals are well within the safe operating area. The threshold voltage is 2.5V maximum at 250 µA drain current, meaning the part is fully enhanced by a 5V logic-level gate signal.
Lifecycle and sourcing
ROHS3 compliant.