Si4866DY
Vishay Siliconix
N-Channel Reduced Q g , Fast Switching MOSFET
PRODUCT SUMMARY
FEATURES
V DS (V)
12
R DS(on) ( Ω )
0.0055 at V GS = 4.5 V
0.008 at V GS = 2.5 V
I D (A)
17
14
? Halogen-free According to IEC 61249-2-21
Available
? TrenchFET ? Power MOSFETs
? PWM Optimized for High Efficiency
? Low Output Voltage
? 100 % R g Tested
APPLICATIONS
? Synchronous Rectifier
? Point-of-Load Synchronous Buck Converter
D
SO-8
S
1
8
D
S
S
G
2
3
4
7
6
5
D
D
D
G
Top View
Ordering Information: Si4866DY-T1-E3 (Lead Pb)-free)
Si4866DY-T1-GE3 (Lead Pb)-free and Halogen-free)
ABSOLUTE MAXIMUM RATINGS T A = 25 °C, unless otherwise noted
S
N-Channel MOSFET
Parameter
Drain-Source Voltage
Gate-Source Voltage
Symbol
V DS
V GS
10 s
12
±8
Steady State
Unit
V
Continuous Drain Current (T J = 150 °C) a
Pulsed Drain Current
T A = 25 °C
T A = 70 °C
I D
I DM
17
14
± 50
11
8
A
Continuous Source Current (Diode Conduction) a
I S
2.7
1.40
Maximum Power Dissipation a
Operating Junction and Storage Temperature Range
T A = 25 °C
T A = 70 °C
P D
T J , T stg
3.0
2.0
- 55 to 150
1.6
1.0
W
°C
THERMAL RESISTANCE RATINGS
Parameter
Symbol
Typical
Maximum
Unit
Maximum Junction-to-Ambient (MOSFET) a
Maximum Junction-to-Foot (Drain)
t ≤ 10 s
Steady State
Steady State
R thJA
R thJF
34
67
15
41
80
19
°C/W
Notes:
a. Surface Mounted on 1" x 1" FR4 board.
Document Number: 71699
S09-0228-Rev. D, 09-Feb-09
www.vishay.com
1
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