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| E2Q0035-27-X3 electronic components This version: Jan. 1998 Previous version: Jun. 1996 KGF1637 electronic components KGF1637 Power FET (Plastic Package Type) GENERAL DESCRIPTION The KGF1637, housed in a SOT-89 type plastic-mold package, is a discrete GaAs power FET that features high efficiency and high output power. The KGF1637 specifications are guaranteed to a fixed matching circuit for 3.4 V and 850 MHz; external impedance-matching circuits are also required. Because of its high efficiency more than 70 %, high output power (more than 31.5 dBm), and plastic package, the KGF1637 is ideal as a transmitter-final-stage amplifier for personal handy phones, such as 3-V analog cellular phones. FEATURES * High output power: 31.5 dBm (min.) * High efficiency: 70% (typ.) * Specifications guaranteed to a fixed matching circuit for 3.4 V and 850 MHz * Low thermal resistance: 20C/W (typ.) * Package: 3PMMP (SOT-89 type) PACKAGE DIMENSIONS 4.50.1 1.6 +0.15 -0.10 1.50.1 2.50.1 10.2 40.2 0.48 +0.08 -0.05 0.4 +0.08 -0.05 0.390.05 0.4 +0.08 -0.05 Package material Lead frame material Pin treatment Solder plate thickness Epoxy resin Cu Solder plating 5 mm or more 1.50.1 1.50.1 30.1 (Unit: mm) 1/6 electronic components KGF1637 MARKING (1) BX XX (1) Gate (2) Source (3) Drain (2) PRODUCT TYPE (3) LOT NUMBER (NUMERICAL or ALPHABETICAL) CIRCUIT Drain(3) Gate(1) Source(2) 2/6 electronic components KGF1637 ABSOLUTE MAXIMUM RATINGS Item Drain-source voltage Gate-source voltage Drain current Total power dissipation Channel temperature Storage temperature Symbol VDS VGS IDS Ptot Tch Tstg Condition Ta = 25C Ta = 25C Ta = 25C Ta = Tc = 25C -- -- Unit V V A W C C Min. -- -5.0 -- -- -- -45 Max. 8 0.4 4.5 1.5 150 125 ELECTRICAL CHARACTERISTICS (Ta = 25C) Item Gate-source leakage current Gate-drain leakage current Drain-source leakage current Drain current Gate-source cut-off voltage Output power Drain efficiency Thermal resistance Symbol IGSS IGDO IDS(off) IDSS VGS(off) PO hD Rth Condition VGS = -5 V VGD = -13 V VDS = 8 V, VGS = -5 V VDS = 1.5 V, VGS = 0 V VDS = 3 V, IDS = 8.4 mA (*1), PIN = 22 dBm (*1), PIN = 22 dBm Channel to case Unit mA mA mA A V dBm % C/W Min. -- -- -- 3.5 -3.0 31.5 60 -- Typ. -- -- -- -- -- 32.0 70 20 Max. 0.1 3 3 -- -2.0 -- -- -- *1 Condition: f = 850 MHz, VDS = 3.4 V, IDSQ = 300 mA 3/6 electronic components KGF1637 RF CHARACTERISTICS 4/6 electronic components Typical S Parameters KGF1637 VDS = 3.4 V, IDS = 300 mA Freq(MHz) MAG(S11) ANG(S11) MAG(S21) ANG(S21) MAG(S12) ANG(S12) MAG(S22) ANG(S22) 500.0 600.0 700.0 800.0 900.0 1000.0 1100.0 1200.0 1300.0 1400.0 1500.0 1600.0 1700.0 1800.0 1900.0 2000.0 2100.0 2200.0 2300.0 2400.0 2500.0 2600.0 2700.0 2800.0 2900.0 3000.0 0.927 0.925 0.924 0.923 0.922 0.920 0.918 0.917 0.916 0.911 0.909 0.906 0.905 0.902 0.897 0.893 0.893 0.887 0.882 0.881 0.873 0.872 0.866 0.861 0.854 0.850 -166.10 -170.04 -172.97 -175.48 -177.47 -179.55 178.71 177.01 175.34 173.72 172.30 170.62 168.98 167.74 166.36 164.42 163.31 161.43 160.10 158.44 156.79 155.41 153.77 152.29 150.71 149.22 2.301 1.928 1.663 1.462 1.311 1.188 1.090 1.004 0.940 0.875 0.828 0.781 0.746 0.710 0.675 0.654 0.624 0.608 0.585 0.566 0.551 0.531 0.515 0.505 0.486 0.478 87.47 84.05 80.79 77.93 75.49 72.56 70.04 67.32 64.95 62.44 59.96 57.65 55.19 52.72 50.65 48.07 45.76 43.41 40.88 39.03 35.95 34.02 31.78 29.50 27.52 24.78 0.027 0.030 0.031 0.033 0.035 0.038 0.040 0.042 0.045 0.047 0.049 0.052 0.054 0.057 0.059 0.062 0.064 0.066 0.070 0.072 0.075 0.077 0.080 0.082 0.085 0.087 37.26 37.18 38.80 39.50 40.32 40.40 41.00 40.77 41.24 40.51 40.44 39.98 39.76 39.16 38.26 37.92 37.08 36.32 35.72 34.45 34.01 32.77 31.44 30.86 28.58 27.83 0.842 0.840 0.836 0.837 0.835 0.836 0.833 0.831 0.826 0.830 0.821 0.823 0.810 0.819 0.807 0.810 0.804 0.799 0.797 0.791 0.789 0.784 0.782 0.778 0.776 0.768 177.69 176.52 175.74 174.64 174.06 172.78 172.23 170.87 169.93 168.84 167.74 166.84 165.69 164.39 163.25 162.08 160.67 159.57 158.04 156.76 155.27 154.10 152.20 151.37 149.35 148.47 5/6 electronic components Typical S Parameters KGF1637 VDS = 3.4 V, IDS = 300 mA Frequency : 0.5 to 3.0 GHz Z0 = 50 W 6/6 |
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