SP6659_06 Datasheet, PDF (5/11 Pages) Sipex Corporation – 1.5MHz, 600mA Synchronous Buck Regulator

TYPICAL PERFORMANCE CHARACTERISTICS
Refer to the typical application schematic, V_OUT = 1.8V, T_AMB= +27°C
2.5Vout Efficiency Vs Output Current
100
90
80
70
2.520
2.510
2.500
2.5Vout Load Regulation
Vin=4.2V
Vin=3.3V
Vin=2.7V
60
Vin=2.7V
2.490
Vin=3.3V
50
Vin=4.2V
2.480
40
1
10
100
1000
0
100 200 300 400 500 600 700
Output Current (mA)
Output Current (mA)
Figure 13: Efficiency Vs. Load Current, Vout =2.5V ^{Figure 14: Load Regulation Vout =2.5V}
1.5Vout Efficiency Vs Output Current
100
90
80
70
60
Vin=2.7V
50
Vin=3.3V
Vin=4.2V
40
1
10
100
1000
Output Current (mA)
1.5Vout Load Regulation
1.520
Vin=4.2V
1.510
Vin=3.3V
Vin=2.7V
1.500
1.490
1.480
0
100 200 300 400 500 600 700
Output Current (mA)
Figure 15: Efficiency Vs. Load Current, Vout =1.5V ^{Figure 16: Load Regulation Vout =1.5V}
1.2Vout Efficiency Vs Output Current
100
90
80
1.2Vout Load Regulation
1.230
Vin=4.2V
Vin=3.3V
1.220
Vin=2.7V
70
1.210
60
Vin=2.7V
1.200
50
Vin=3.3V
Vin=4.2V
40
1.190
1
10
100
1000
0
100 200 300 400 500 600 700
Output Current (mA)
Output Current (mA)
Figure 17: Efficiency Vs. Load Current, Vout =1.2V Figure 18: Load Regulation Vout =1.2V
Date: 9/25/06 Rev C
SP6659 1.5MHz, 600mA Synchronous Buck Regulator
5
© 2006 Sipex Corporation