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ISL97631IHTZ-T7 Datasheet(PDF) 3 Page - Intersil Corporation |
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ISL97631IHTZ-T7 Datasheet(HTML) 3 Page - Intersil Corporation |
3 / 8 page 3 FN7370.1 December 21, 2005 Typical Application FIGURE 1. TYPICAL APPLICATION CIRCUIT FIGURE 2. EFFICIENCY vs LED CURRENT (VIN = 4V) ISL97631 C1 L1 22µH C2 0.22µF RSET 4.75 Ω 2.7V~5.5V OFF/ON LEDs 1µF VIN LX ENAB FB GND VIN VOUT 50 55 60 65 70 75 80 85 90 0 5 10 15 20 25 30 ILED (mA) 22µH, VIN = 4V Typical Performance Curves FIGURE 3. QUIESCENT CURRENT vs VIN (ENAB = hi) FIGURE 4. LOAD REGULATION (VIN = 4V) FIGURE 5. LINE REGULATION FIGURE 6. SWITCHING FREQUENCY vs TEMPERATURE 0 100 200 300 400 500 600 700 024 6 VIN (V) 18.228 18.230 18.232 18.234 18.236 18.238 18.240 18.242 18.244 0 5 10 15 20 VOUT (V) 18.23 18.24 18.25 18.26 18.27 18.28 18.29 18.30 18.31 18.32 18.33 2.5 3.5 4.5 5.5 VIN (V) 1.27 1.28 1.29 1.30 1.31 1.32 1.33 1.34 1.35 1.36 1.37 -60 -40 -20 0 20 40 60 80 100 TEMPERATURE (°C) ISL97631 |
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