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ER3110DI Datasheet, PDF (7/23 Pages) Altera Corporation – Synchronous Buck Regulator
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Efficiency Curves FSW = 500kHz, TA = +25°C
100
95
90
85
VPVIN = 24V
VPVIN = 15V
80
75
VPVIN = 33V
70
65
60
55
50
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 5. EFFICIENCY vs LOAD, PFM, VOUT = 12V
100
VPVIN = 12V
95
VPVIN = 6V
90
85
80
VPVIN = 24V
VPVIN = 15V
75
70
65
60
55
50
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 7. EFFICIENCY vs LOAD, PFM, VOUT = 5V, L1 = 30µH
Page 7
100
95
90
85
VPVIN = 24V
VPVIN = 15V
80
75
70
VPVIN = 33V
65
60
55
50
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, PWM, VOUT = 12V
100
VPVIN = 12V
95
VPVIN = 6V
90
85
80
VPVIN = 24V
VPVIN = 15V
75
70
65
60
55
50
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 8. EFFICIENCY vs LOAD, PWM, VOUT = 5V, L1 = 30µH
100
95
90
VPVIN = 12V
VPVIN = 5V
85
80
VPVIN = 15V
75
70
65
VPVIN = 24V
VPVIN = 33V
60
55
50
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 9. EFFICIENCY vs LOAD, PFM, VOUT = 3.3V
100
95
VPVIN = 12V
90
VPVIN = 5V
85
80
75
VPVIN = 15V
VPVIN = 33V
70
65
VPVIN = 24V
60
55
50
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 10. EFFICIENCY vs LOAD, PWM, VOUT = 3.3V
May 2014 Altera Corporation
10038
Enpirion Power Datasheet ER3110DI Wide PVIN 1A Synchronous Buck Regulator
May 28, 2014
Rev A
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