LF2802A
RF Power MOSFET Transistor
2 W, 500 - 1000 MHz, 28 V
Rev. V1
Features
N-Channel enhancement mode device
DMOS structure
Lower capacitances for broadband operation
Common source configuration
Lower noise floor
Applications
Package Outline
Broadband linear operation
500 MHz to 1400 MHz
RoHS Compliant
Absolute Maximum Ratings @ 25°C
Symbol
Rating
Units
Drain-Source Voltage
Parameter
VDS
65
V
Gate-Source Voltage
VGS
20
V
Drain-Source Current
IDS
0.7
A
Power Dissipation
PD
8
W
Junction Temperature
TJ
200
°C
Storage Temperature
TSTG
-55 to +150
°C
LETTER
DIM.
Thermal Resistance
θJC
21.8
°C/W
A
20.70
B
14.35
C
Typical Device Impedance
F (MHz)
ZIN (Ω)
ZLOAD (Ω)
500
10.0 - j41.5
40.0 +j53.0
1000
4.2 - j12.0
11.85 + j33.0
1400
3.5 - j1.0
7.5 + j23.3
VDD = 28V, IDQ = 25mA, POUT = 2.0 W
ZIN is the series equivalent input impedance of the device from
gate to source.
ZLOAD is the optimum series equivalent load impedance as
measured from drain to ground.
MILLIMETERS
MIN
MAX
MIN
INCHES
MAX
20.96
.815
.825
14.61
.565
.575
13.72
14.22
.540
.560
D
6.27
6.53
.247
.257
E
6.22
6.48
.245
.255
F
6.22
6.48
.245
.255
G
H
1.14
2.92
1.40
3.18
.045
.115
.055
.125
J
1.40
1.65
.055
.065
K
1.96
2.46
.077
.097
L
M
3.61
.08
4.37
.15
.142
.003
.172
.006
Electrical Characteristics @ 25°C
1
Parameter
Symbol
Min
Max
Units
Test Conditions
Drain-Source Breakdown Voltage
BVDSS
65
-
V
VGS = 0.0 V , IDS = 1.0 mA
Drain-Source Leakage Current
IDSS
-
0.5
mA
VGS = 28.0 V , VGS = 0.0 V
Gate-Source Leakage Current
IGSS
-
0.5
µA
VGS = 20.0 V , VDS = 0.0 V
Gate Threshold Voltage
VGS(TH)
2.0
6.0
V
VDS = 10.0 V , IDS = 5.0 mA
Forward Transconductance
GM
40
-
mS
VDS = 28.0 V , IDS = 50.0 mA , Δ VGS = 1.0V, 80 μs Pulse
Input Capacitance
CISS
-
3.5
pF
VDS = 28.0 V , F = 1.0 MHz
Output Capacitance
COSS
-
3.75
pF
VDS = 28.0 V , F = 1.0 MHz
Reverse Capacitance
CRSS
-
1.2
pF
VDS = 28.0 V , F = 1.0 MHz
Power Gain
GP
10
-
dB
VDD = 28.0 V, IDQ = 25 mA, POUT = 2.0 W F =1.0 GHz
Drain Efficiency
ŋD
40
-
%
VDD = 28.0 V, IDQ = 25 mA, POUT = 2.0 W F =1.0 GHz
Load Mismatch Tolerance
VSWR-T
-
20:1
-
VDD = 28.0 V, IDQ = 25 mA, POUT = 2.0 W F =1.0 GHz
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
LF2802A
RF Power MOSFET Transistor
2 W, 500 - 1000 MHz, 28 V
Rev. V1
Typical Broadband Performance Curves
CAPACITANCES VS VOLTAGE
F =1.0MHz
3
4
POWER OUTPUT (W)
CAPACITANCE (pF)
5
COSS
3
CISS
2
1
POWER OUTPUT VS VOLTAGE
F =1.0GHz PIN=2.0 W IDQ=25 mA
CRSS
2
1
0
0
5
10
15
20
25
5
30
10
GAIN VS FREQUENCY
VDD=28 V IDQ=25.0 mA POUT=2.0 W
EFFICIENCY (%)
GAIN (dB)
25
10
5
35
700
1000
45
42
39
36
500
0
1400
750
1000
1250
FREQUENCY (MHz)
FREQUENCY (MHz)
POWER OUTPUT VS POWER INPUT
VDD =28 V IDQ =25.0 mA
POWER OUTPUT (W)
4
3
1000 MHz
500MHz
1400 MHz
2
1
0
0
0.05
0.1
0.2
0.3
0.4
0.5
POWER INPUT (W)
2
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
30
EFFICIENCY VS FREQUENCY
VDD =28 V IDQ =25.0 mA Pout =2.0 W
48
15
500
20
VDS (V)
VPS (v)
20
15
1400
LF2802A
RF Power MOSFET Transistor
2 W, 500 - 1000 MHz, 28 V
Rev. V1
TEST FIXTURE CIRCUIT DIMENSIONS
TEST FIXTURE ASSEMBLY
3
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
LF2802A
RF Power MOSFET Transistor
2 W, 500 - 1000 MHz, 28 V
Rev. V1
M/A-COM Technology Solutions Inc. All rights reserved.
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4
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support