FDQ7238AS Datasheet, PDF (1/9 Pages) Fairchild Semiconductor – Dual Notebook Power Supply N-Channel PowerTrench in SO-14 Package

June 2005
FDQ7238AS
Dual Notebook Power Supply N-Channel PowerTrench^® in SO-14 Package
General Description
The FDQ7238AS is designed to replace two single SO-
8 MOSFETs in DC to DC power supplies. The 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 using
Fairchild’s SyncFET ^TM technology. The FDQ7238AS
includes a patented combination of a MOSFET
monolithically integrated with a Schottky diode.
Features
• Q2: 14 A, 30V. R_DS(on) = 8.7 mΩ @ V_GS = 10V
R_DS(on) = 10.5 mΩ @ V_GS = 4.5V
• Q1: 11 A, 30V. R_DS(on) = 13.2 mΩ @ V_GS = 10V
R_DS(on) = 16 mΩ @ V_GS = 4.5V
SO-14
pin 1
S2
S2
S2
G1G2
Vin
Absolute Maximum Ratings T_A = 25°C unless otherwise noted
Symbol
V_DSS
V_GSS
I_D
P_D
T_J, T_STG
Parameter
Drain-Source Voltage
Gate-Source Voltage
Drain Current - Continuous
- Pulsed
Power Dissipation for Single Operation
(Note 1a)
(Note 1a & 1b)
(Note 1c & 1d)
Operating and Storage Junction Temperature Range
Thermal Characteristics
R_θJA
Thermal Resistance, Junction-to-Ambient (Note 1a & 1b)
(Note 1c & 1d)
Package Marking and Ordering Information
Device Marking
FDQ7238AS
FDQ7238AS
FDQ7238AS
Device
FDQ7238AS
FDQ7238AS_NL (Note 3)
FDQ7238AS_NF40 (Note 4)
Reel Size
13”
13”
13”
©2005 Fairchild Semiconductor Corporation
Q2
Q1
30
30
±20
±20
14
11
50
50
2.4
1.8
1.3
1.1
−55 to +150
52
68
94
118
Units
V
V
A
W
°C
°C/W
Tape width
16mm
16mm
16mm
Quantity
2500 units
2500 units
2500 units
FDQ7238AS Rev A(X)