ISL8013 Ver la hoja de datos (PDF) - Renesas Electronics
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ISL8013 Datasheet PDF : 18 Pages
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ISL8013
Typical Operating Performance
100
90
80
2.5VOUT-PWM1.8VOUT-PWM
1.5VOUT-PWM
70
1.2VOUT-PWM
60
50
40
0.0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT LOAD (A)
FIGURE 3. EFFICIENCY vs LOAD (1MHz 3.3 VIN PWM)
(Unless otherwise noted, operating conditions are: TA = +25°C,
VVIN = 2.5V to 5.5V, EN = VIN, SYNCH = 0V, L = 1.5µH,
C1 = 2x22µF, C2 = 2x22µF, IOUT = 0A to 3A).
100
90
80
2.5VOUT-PFM
1.8VOUT-PFM 1.5VOUT-PFM
70
1.2VOUT-PFM
60
50
40
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT LOAD (A)
FIGURE 4. EFFICIENCY vs LOAD (1MHz 3.3 VIN PFM)
100
90
80
2.5VOUT-PW1M.8VOUT-PWM 1.5VOUT-PWM
70
3.3VOUT-PWM
1.2VOUT-PWM
60
50
40
0.0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT LOAD (A)
FIGURE 5. EFFICIENCY vs LOAD (1MHz 5VIN PWM)
100
90
80
70
2.5VOUT-PFM 1.8VOUT-PFM1.5VOUT1-.P2FVMOUT-PFM
60 3.3VOUT-PFM
50
40
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT LOAD (A)
FIGURE 6. EFFICIENCY vs LOAD (1MHz 5VIN PFM)
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
3.3VIN-PWM
3.3VIN-PFM 5VIN-PFM
5VIN-PWM
0.00
0.0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT LOAD (A)
FIGURE 7. POWER DISSIPATION vs LOAD (1MHz,
VOUT = 1.8V)
125
100
75
50
25
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN (V)
FIGURE 8. POWER DISSIPATION WITH NO LOAD vs
VIN (PWM VOUT = 1.8V)
FN6309 Rev 3.00
November 23, 2009
Page 7 of 18
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