The PD55025 is a common source N-Channel,
enhancement-mode lateral Field-Effect RF power
transistor. It is designed for high gain, broad band
commercial and industrial applications. It operates
at 12 V in common source mode at frequencies of
up to 1 GHz. PD 55025 boasts the excellent gain,
linearity and reliability of ST’s latest LDMOS
technology mounted in the first true SMD pla stic
RF power package, PowerSO-10RF . PD55025’s
superior linearity performance makes it an ideal
solution for car mobile radio.
The LdmoST
PowerSO-10RF
(formed lead)
ORDER CODE
PD55025
Plastic FAMILY
BRANDING
PD55025
The PowerSO-10 plastic package, designed to
offer high reliability, is the first ST JEDEC
approved, high power SM D package. I t has b een
specially optimized for RF needs and offers
excellent RF performances and ease of assembly.
TYPICAL PERFORMANCE
Drain Efficiency vs Output Power
(PD55025S)
Input Return Loss vs Output Power
70
60
50
40
Nd (%)
30
20
10
0
0 1020304050
500 MHz
480, 520 MHz
Pout (W)
Vdd = 12.5 V
Idq = 200 mA
Output Power vs Bias Curent
40
35
30
25
20
Pout (W)
15
10
5
0
0200400600800100 01200
Idq (m A)
480 MHz
520 MHz
Vdd = 12.5 V
Pin = 0.85 W
500 MHz
0
-5
-10
-15
-20
RL (dB)
-25
-30
-35
-40
0 1020304050
480 MHz
500 MHz
520 MHz
Pout (W)
Vdd = 12.5 V
Idq = 200 mA
Drain Efficiency vs Bias Current
60
50
40
30
Nd (%)
20
10
0
020040060080010001200
Idq ( m A)
500 MHz
520 MHz
Vdd = 12.5 V
Pin = 0 . 85 W
480 MH z
Output Power vs Supply Voltage
35
30
25
20
Pout (W)
15
10
5
0
5 7 9 1113151719
Vdd ( V)
4/13
520 MHz
480 MHz
500 MHz
I dq = 200 mA
Pin = 0.85 W
Drain Efficiency vs Supply Voltage
70
60
50
40
Nd (%)
30
20
10
0
681012141618
500 MHz
500 MHz
520 MHz
Vdd (V)
Idq = 200 mA
Pin = 0.85 W
Page 5
TYPICAL PERFORMANCE
g
)
(PD55025S)
Output Power vs Gate-Source Voltage
PD55025 - PD55025S
Output Power vs Input Power (f = 175 MHz)
30
25
20
15
Pout (W)
500 MHz
10
5
0
01234
480 MHz
520 MHz
V
s (V
Vdd = 12.5 V
Pin = 0.85 W
Power Gain vs Output Power (f = 175 MHz)
30
25
20
45
40
35
30
25
Pout (W)
20
15
10
5
0
00.511.522.5
Pin (W)
Vdd = 12.5 V
I dq = 200 mA
Drain Efficiency vs Output Power (f = 175 MHz)
80
70
60
50
15
Gp (W)
10
5
0
0 1020304050
Pout (W)
Vdd = 12.5 V
Idq = 200 mA
Input Return Loss vs Output Power (f = 175 MHz)
0
-5
-10
-15
RL (dB)
-20
-25
Vdd = 12.5 V
Idq = 200 mA
40
Nd (%)
30
20
10
0
0 1020304050
Pout (W)
Vdd = 12.5 V
Idq = 200 m A
-30
0 1020304050
Pout (W)
5/13
Page 6
PD55025 - PD55025S
500 MHz TEST CIRCUIT SCHEMATIC (ENGINEERING)
VGG
B1
B2
+
+
C10
RF
INPUT
C9
C1
R3
C8
Z2
Z1Z3
C2
C3
R2
R1
C4
C5
C7
Z4
C6
DUT
C19
L1
Z6
Z5
C12
Z7
C11
C18C17C16
Z9
C14
C15
Z8
C13
N2
OUTPUT
RF
500 MHz TEST CIRCUIT COMPONENT PART LIST
COMPONENTDESCRIPTIO N
B1,B2FERRITE BEAD
C1,C13300 pF, 100 mil CHIP CAPACITOR
C2,C3,C4,C12,C13,C141 to 20 pF TRIMMER CAPACITOR
C639 pF ATC 100B SURFACE MOUNT CERAMIC CHIP CAPACITOR
C7, C19120 pF 100 mil CHIP CAPACITOR
C10, C1610 µF, 50 V ELECTROLYTIC CAPACITOR
C9, C170.1 mF, 100 mil CHIP CAP
C8, C181.000 pF 100 mil CHIP CAP
C5, C1133 pF, 100 mil CHIP CAP
L156 nH, 7 TURN, COILCRAFT
N1, N2TYPE N FLANGE MOUNT
R115 Ω, 1 W CHIP RESISTOR
R21 KΩ, 1 W CHIP RESISTOR
R333 KΩ, 1 W CHIP RESISTOR
Z1 0.471” X 0.080” MICROSTRIP
Z21.082” X 0.080” MICROSTRIP
Z30.372” X 0.080” MICROSTRIP
Z4,Z50.260” X 0.223” MICROSTRIP
Z60.050” X 0.080” MICROSTRIP
Z70.551” X 0.080” MICROSTRIP
Z80.825” X 0.080” MICROSTRIP
Z90.489” X 0.080” MICROSTRIP
Note (1): Resin protrusions not included (max value: 0.15 mm per side)
MIN.TYP .MAXMIN.TYP .MAX
mmInch
12/13
CRITICAL DIMENSIONS:
- Stand-off (A1)
- Overall width (L)
Page 13
PD55025 - PD55025S
p
Information furnished is believed to be ac curate and reliable. Howev er, STMicroel ectronics assumes no resp onsibility for t he consequ ences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implic ation or otherwise under any pat ent or pat ent rights of STMicroelectron i cs. Specifications mentioned in this publicatio n are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as cri tical comp onents in life support devi ces or systems wi thout express written approval of STM i croelect ronics.
The ST log o i s registered trademark of STMicro el ectronics
2003 STMicroelectronics - All Right s Reserved
All other names are the property of their respective ow ners.
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htt
://www.st.com
13/13
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