EN2340QI Datasheet, PDF (6/23 Pages) Enpirion, Inc. – 204A Voltage Mode Synchronous Buck PWM

Typical Performance Curves
95
90
85
80
75
70
65
60
55
50
0
Efficiency vs. Output Current
VOUT = 5.0V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.2V
VOUT = 1.0V
CONDITIONS
V_IN = 12.0V
AVIN = 3.3V
Dual Supply
0.5 1 1.5 2 2.5 3 3.5 4
OUTPUT CURRENT (A)
EN2340QI
100
95
90
85
80
75
70
65
60
55
50
0
Efficiency vs. Output Current
VOUT = 5.0V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.2V
VOUT = 1.2V
CONDITIONS
V_IN = 8.0V
ACVOINND=IT3I.O3VNS
DVIuNa=l S8.u0pVply
0.5 1 1.5 2 2.5 3 3.5 4
OUTPUT CURRENT (A)
100
95
90
85
80
75
70
65
60
55
50
0
Efficiency vs. Output Current
VOUT = 2.5V
VOUT = 1.2V
VOUT = 1.0V
CONDITIONS
ADCVVV_IIuONNIaN==Nl ^{DS85=..Iu00T3pVVI.Op3lVNyS}
0.5 1 1.5 2 2.5 3 3.5 4
OUTPUT CURRENT (A)
Efficiency vs. Output Current
95
90
85
80
75
CONDITIONS
V_IN = 12.0V
70
DUAL SUPPLY VOUT = 5.0V
65
SINGLE SUPPLY VOUT = 5.0V
60
DUAL SUPPLY VOUT = 1.0V
55
SINGLE SUPPLY VOUT = 1.0V
50
0 0.5 1 1.5 2 2.5 3 3.5 4
OUTPUT CURRENT (A)
Output Voltage vs. Output Current
1.010
1.008
VIN = 5V
1.006
VIN = 8V
1.004
VIN = 12V
1.002
1.000
0.998
0.996
0.994
0.992
CONDCIOTINODNISTIONS
V_{OUT_}V_NIONM==51.0.0VV
0.990
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
OUTPUT CURRENT (A)
Output Voltage vs. Output Current
3.310
3.308
3.306
3.304
VIN = 8V
VIN = 12V
CONDITIONS
V_{OUT_NOM} = 3.3V
3.302
3.300
3.298
3.296
3.294
3.292
3.290
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
OUTPUT CURRENT (A)
06878
October 9, 2013
www.altera.com/enpirion, Page 6
Rev E