AME
1.5MHz, 600mA
Synchronous Buck Converter
AME5248A
Efficiency vs Output Current
Efficiency vs Output Current
100
90
100
90
VIN=2.7V
VIN=3.6V
80
70
60
50
40
30
20
10
80
VIN=2.7V
VIN=4.2V
VIN=3.6V
70
60
VIN=4.2V
50
40
30
VOUT=2.5V
20
VOUT=1.5V
10
0.1
0.1
1
10
100
1000
1
10
100
1000
Output Current(mA)
Output Current(mA)
Reference Voltage vs Temperature
Oscillator Frequency vs Temperature
1.70
1.65
1.60
1.55
1.50
0.520
0.515
0.510
0.505
0.500
0.495
VIN=3.6V
VIN=3.6V
1.45
1.40
1.35
1.30
0.490
0.485
0.480
-40
-15
+10
+35
+60
+85
+110
-40
-15
+10
+35
+60
+85
+110
Temperature(oC)
Temperature(oC)
Oscillator Frequency vs Supply Voltage
Quiescent Current vs Input Voltage
50
45
40
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
VIN=3.6V
VOUT=1.8V
IOUT=0A
35
30
25
20
15
10
5
0
2.5
3.5
4.5
5.5
2.5
3.5
4.5
5.5
VIN(V)
VIN(V)
Rev.A.01
13
AME [ ANALOG MICROELECTRONICS ]
