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ISL8023AIRTAJZ Datasheet(PDF) 7 Page - Intersil Corporation |
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ISL8023AIRTAJZ Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 19 page ISL8023, ISL8024 7 FN7812.0 December 22, 2011 Typical Operating Performance Unless otherwise noted, operating conditions are: T A = +25°C, VVIN = 5V, EN = VIN, SYNC = VIN, L = 1.0µH, C1 = 22µF, C2 = 2 x 22µF, IOUT = 0A to 4A). FIGURE 4. EFFICIENCY vs LOAD (1MHz 3.3 VIN PWM) FIGURE 5. EFFICIENCY vs LOAD (1MHz 3.3 VIN PFM) FIGURE 6. EFFICIENCY vs LOAD (1MHz 5VIN PWM) FIGURE 7. EFFICIENCY vs LOAD (1MHz 5VIN PFM) FIGURE 8. POWER DISSIPATION vs LOAD (1MHz, VOUT = 1.8V) FIGURE 9. VOUT REGULATION vs LOAD (1MHz, VOUT = 1.2V) 40 50 60 70 80 90 100 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 IOUT (A) 1.2VOUT 1.5VOUT 1.8VOUT 2.5VOUT 40 50 60 70 80 90 100 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 IOUT (A) 1.2VOUT 1.5VOUT 1.8VOUT 2.5VOUT 40 50 60 70 80 90 100 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 IOUT (A) 1.2VOUT 1.5VOUT 1.8VOUT 2.5VOUT 3.3VOUT 40 50 60 70 80 90 100 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 1.2VOUT 1.5VOUT 1.8VOUT 2.5VOUT 3.3VOUT IOUT (A) 0 0.18 0.36 0.54 0.72 0.90 1.08 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 IOUT (A) 3.3VIN PWM MODE 5VIN PWM MODE 1.208 1.214 1.220 1.226 1.232 1.238 1.244 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 IOUT (A) 3.3VIN PWM MODE 5VIN PFM MODE 3.3VIN PFM MODE 5VIN PWM MODE |
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