EN2390QI Datasheet, PDF (7/21 Pages) Enpirion, Inc. – 9A Voltage Mode Synchronous Buck PWM

Typical Performance Curves
Sim Efficiency vs. Output Current
100
90
80
70
60
50
40
30
VOUT = 3.3V
CONDITIONS
20
VOUT = 1.8V
V_IN = 12.0V
AVIN = 3.3V
10
VOUT = 1.2V
Dual Supply
0
0123456789
OUTPUT CURRENT (A)
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
55
Output Current De-rating
VOUT = 3.3V
VOUT = 1.8V
CONDITIONS
V_IN = 12V
T_JMAX = 125 C
θ_JA = 15 C/W
10x11x3mm QFN
No Air Flow
60
65
70
75
80
85
AMBIENT TEMPERATURE ( C)
Output Current De-rating with Air Flow
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
55
VOUT = 3.3V
CONDITIONS
V_IN = 12V
T_JMAX = 125 C
θ_JA = 152.5C/CW/W
10x11x3mm QFN
NAior FAlior wFl(o2w00fpm)
60
65
70
75
80
85
AMBIENT TEMPERATURE ( C)
EN2390QI
Sim Efficiency vs. Output Current
100
90
80
70
60
50
40
30
VOUT = 3.3V
CONDITIONS
20
VOUT = 1.8V
VOUT = 1.2V
V_IN = 10.0V
AVIN = 3.3V
10
Dual Supply
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
OUTPUT CURRENT (A)
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
55
Output Current De-rating
VOUT = 3.3V
VOUT = 1.8V
CONDITIONS
V_IN = 120V
T_JMAX = 125 C
θ_JA = 15 C/W
10x11x3mm QFN
No Air Flow
60
65
70
75
80
85
AMBIENT TEMPERATURE ( C)
Output Current De-rating with Air Flow
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
55
VOUT = 3.3V
CONDITIONS
V_IN = 12V
T_JMAX = 125 C
θ_JA = 151 C/W
10x11x3mm QFN
NAior FAlior wFl(o4w00fpm)
60
65
70
75
80
85
AMBIENT TEMPERATURE ( C)
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Enpirion Confidential
www.enpirion.com, Page 7