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The FDS6986AS is designed to replace two single SO- 8 MOSFETs and Schottky diode in synchronous DC:DC power supplies that provide various peripheral voltages for notebook computers and other battery powered electronic devices. FDS6986AS contains two unique 30V, N-channel, logic level, PowerTrench MOSFETs designed to maximize power conversion efficiency.
The high-side switch (Q1) is designed with specific emphasis on reducing switching losses while the lowside switch (Q2) is optimized to reduce conduction losses. Q2 also includes an integrated Schottky diode using Fairchild's monolithic SyncFET technology.
FDS6986AS Maximum Ratings
Symbol
Parameter
Q2
Q1
Units
VDSS
Drain-Source Voltage
30
30
V
VGSS
Gate-Source Voltage
±20
±16
V
ID
Drain Current - Continuous (Note 1a) - Pulsed
7.9
6.5
30
20
PD
Power Dissipation for Dual Operation
2
A
Power Dissipation for Single Operation (Note 1a) (Note 1b) (Note 1c)