FDS6994S

Transistor Polarity : N-Channel
Mounting Style : SMD/SMT
Packaging : Reel
Drain-Source Breakdown Voltage : 30 V
Maximum Operating Temperature : + 150 C
Configuration : Dual Dual Drain
Package / Case : SOIC-8 Narrow
Gate-Source Breakdown Voltage : +/- 16 V
Resistance Drain-Source RDS (on) : 0.015 Ohms
Continuous Drain Current : 6.9 A, 8.2 A


Features:

•  Q2:  Optimized to minimize conduction losses Includes SyncFET Schottky body diode 
   8.2A,  30V  = 15.0 mΩ @ VGS = 10V R_DS(on) 
                     = 17.5 mΩ @ VGS = 4.5V R_DS(on)
•  Q1:  Optimized for low switching losses Low gate charge (8.0 nC typical)
   6.9A,  30V  = 21.0 mΩ @ VGS = 10V RDS(on)
                     = 26.0 mΩ @ VGS = 4.5VRDS(on)


Pinout




Specifications

Symbol	Parameter	Q2	Q1	Units
VDSS	Drain-Source Voltage	30	30	V
VGSS	Gate-Source Voltage	±16	±16	V
ID	Drain Current - Continuous (Note 1a) - Pulsed	8.2	6.9	A
		30	20
PD	Power Dissipation for Dual Operation	2		W
	Power Dissipation for Single Operation (Note 1a) (Note 1b) (Note 1c)	1.6
		1
		0.9
TJ, TSTG	Operating and Storage Junction Temperature Range	-55 to +150		°C

Description

The FDS6994S 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. FDS6994S contains two unique  30V, N-channel, logic level, PowerTrench MOSFETs  designed to maximize power conversion efficiency.

The FDS6994S high-side switch (Q1) is designed with specific emphasis on reducing switching losses while the low-side switch (Q2) is optimized to reduce conduction losses.  Q2 also includes an integrated Schottky diode  using Fairchild's monolithic SyncFET technology.

Parameters:

Technical/Catalog Information	FDS6994S
Vendor	Fairchild Semiconductor
Category	Discrete Semiconductor Products
Mounting Type	Surface Mount
FET Polarity	2 N-Channel (Dual)
Drain to Source Voltage (Vdss)	30V
Current - Continuous Drain (Id) @ 25° C	6.9A, 8.2A
Rds On (Max) @ Id, Vgs	21 mOhm @ 6.9A, 10V
Input Capacitance (Ciss) @ Vds	800pF @ 15V
Power - Max	900mW
Packaging	Tape & Reel (TR)
Gate Charge (Qg) @ Vgs	12nC @ 5V
Package / Case	SO-8
FET Feature	Logic Level Gate
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	FDS6994S FDS6994S