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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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LTM4651 Datenblatt(PDF) 24 Page - Linear Technology |
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LTM4651 Datenblatt(HTML) 24 Page - Linear Technology |
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24 / 34 page  LTM4651 24 4651f For more information www.linear.com/LTM4651 APPLICATIONS INFORMATION Table 8. LTM4651 Output Voltage Response vs Component Matrix. Performance of Figure 32 Circuit with Values Here Indicated, COMPa Connected to COMPb, CEXTVCC = 1μF, and the Following Components Not Used: CTH, RTH and COUTL. Load-Stepping from 50% of Full Scale (F.S.) to 100% of F.S. Load Current, in 1μs. Typical Measured Values COUTH VENDORS PART NUMBER CIN/CD VENDORS PART NUMBER AVX 12066D107MAT2A (100µF, 6.3V, 1206 Case Size) Murata GRM32ER71K475M (4.7µF, 80V, 1210 Case Size) Murata GRM31CR60J107M (100µF, 6.3V, 1206 Case Size) AVX 12065C475MAT2A (4.7µF, 50V, 1206 Case Size) Taiyo Yuden JMK316BBJ107MLHT (100µF, 6.3V, 1206 Case Size) Murata GRM31CR71H475M (4.7µF, 50V, 1206 Case Size) TDK C3216X5R0J107M (100µF, 6.3V, 1206 Case Size) Taiyo Yuden UMK316AB7475ML (4.7µF, 50V, 1206 Case Size) AVX 1210YD476MAT2A (47µF, 16V, 1210 Case Size) TDK C3216X5R1H475M (4.7µF, 50V, 1206 Case Size) Murata GRM32ER61C476M (47µF, 16V, 1210 Case Size) Taiyo Yuden EMK325BJ476MM (47µF, 16V, 1210 Case Size) AVX 12103D226MAT2A (22µF, 25V, 1210 Case Size) Taiyo Yuden TMK325BJ226MM (22µF, 25V, 1210 Case Size) TDK C3225X5R1E226M (22µF, 25V, 1210 Case Size) AVX 12105D106MAT2A (10µF, 50V, 1210 Case Size) Murata GRM32ER61H106M (10µF, 50V, 1210 Case Size) Taiyo Yuden UMK325BJ106M (10µF, 50V, 1210 Case Size) TDK C3225X5R1H106M (10µF, 50V, 1210 Case Size) VOUT– (V) VIN (V) F. S. LOAD (A) CIN (VIN– TO GND BYPASS CAP) CINOUT (VIN– TO VOUT– BYPASS CAP) CD (VD– TO VOUT– BYPASS CAP) CDGND (VD– TO GND BYPASS CAP) COUTH (CERAMIC OUTPUT CAP) RISET (kΩ) RPGDFB (kΩ) fSW (kHz) RfSET (kΩ) REXTVCC (Ω) LOAD STEP TRANSIENT DROOP (mV) LOAD STEP PK-PK DEVIATION (mV) RECOVERY TIME (μs) –0.5 5 3.2 4.7µF 4.7µF 4.7µF 4.7µF 100µF × 4 10 N/A 400 N/A 2.2 75 150 55 –0.5 12 4 4.7µF 4.7µF 4.7µF 4.7µF 100µF × 4 10 N/A 400 N/A 2.2 90 190 60 –0.5* 24 4 4.7µF 4.7µF 4.7µF 4.7µF 100µF × 4 10 N/A 200* N/A 2.2 90 190 60 –3.3 5 2.2 4.7µF 4.7µF 4.7µF 4.7µF 100µF 66.5 22.6 400 N/A 15 65 130 25 –3.3 12 3.5 4.7µF 4.7µF 4.7µF 4.7µF 100µF × 2 66.5 22.6 400 N/A 15 165 330 50 –3.3 24 4 4.7µF 4.7µF 4.7µF 4.7µF 100µF × 2 66.5 22.6 450 2200 15 175 355 50 –3.3 36 4 4.7µF 4.7µF 4.7µF 4.7µF 100µF × 2 66.5 22.6 500 1000 15 160 310 40 –3.3 48 4 4.7µF 4.7µF 4.7µF 4.7µF 100µF × 2 66.5 22.6 500 1000 15 152 300 35 –5 5 1.75 4.7µF 4.7µF 4.7µF 4.7µF 47µF × 2 100 36.5 400 N/A 20 125 235 45 –5 12 3.2 4.7µF 4.7µF 4.7µF 4.7µF 47µF × 2 100 36.5 550 665 20 175 340 60 –5 24 3.85 4.7µF 4.7µF 4.7µF 4.7µF 47µF × 2 100 36.5 600 499 20 185 380 55 –5 36 4 4.7µF 4.7µF 4.7µF 4.7µF 47µF × 2 100 36.5 600 499 20 180 360 45 –5 48 4 4.7µF 4.7µF 4.7µF 4.7µF 47µF × 2 100 36.5 600 499 20 165 330 38 –8 5 1.2 4.7µF 4.7µF 4.7µF 4.7µF 47µF 160 61.9 450 2200 32.4 125 235 30 –8 12 2.3 4.7µF 4.7µF 4.7µF 4.7µF 47µF 160 61.9 700 332 32.4 185 340 30 –8 24 3.1 4.7µF 4.7µF 4.7µF 4.7µF 47µF 160 61.9 800 249 32.4 180 330 27 –8 36 3.4 4.7µF 4.7µF 4.7µF 4.7µF 47µF 160 61.9 850 221 32.4 205 400 27 –8 48 3.6 4.7µF 4.7µF 4.7µF 4.7µF 47µF 160 61.9 900 200 32.4 185 370 25 –12 5 0.9 4.7µF 4.7µF 4.7µF 4.7µF 22µF 240 95.3 475 1300 49.9 140 270 32 –12 12 1.9 4.7µF 4.7µF 4.7µF 4.7µF 22µF 240 95.3 825 237 49.9 157 290 25 –12 24 2.75 4.7µF 4.7µF 4.7µF 4.7µF 22µF 240 95.3 1100 143 49.9 170 325 25 –12 36 3.2 4.7µF 4.7µF 4.7µF 4.7µF 22µF 240 95.3 1200 124 49.9 200 400 25 –15 5 0.75 4.7µF 4.7µF 4.7µF 4.7µF 22µF 301 121 500 1000 60.4 90 170 25 –15 12 1.75 4.7µF 4.7µF 4.7µF 4.7µF 22µF 301 121 875 210 60.4 200 380 32 –15 24 2.5 4.7µF 4.7µF 4.7µF 4.7µF 22µF 301 121 1200 124 60.4 205 400 28 –15 36 3 4.7µF 4.7µF 4.7µF 4.7µF 22µF 301 121 1400 100 60.4 210 415 28 –24 5 0.55 4.7µF 4.7µF 4.7µF × 2 4.7µF × 2 10µF × 2 481 196 550 665 100 105 220 45 –24 12 1.25 4.7µF 4.7µF 4.7µF × 2 4.7µF × 2 10µF × 2 481 196 1000 165 100 140 275 30 –24 24 2 4.7µF 4.7µF 4.7µF × 2 4.7µF × 2 10µF × 2 481 196 1500 90.9 100 140 280 27 *To avoid violating minimum on-time criteria, drive CLKIN with a 200kHz, 50% duty cycle clock. Consider using LTC6908-1, for example. |
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