AME5259A Datasheet, PDF (15/21 Pages) Analog Microelectronics – 1.2A, 1.5MHz Synchronous Step-Down Converter

AME
AME5259A
n Characterization Curve (Contd.)
0.620
0.615
0.610
0.605
0.600
0.595
0.590
0.585
0.580
-50
Reference Voltage vs.
Temperature
V_IN = 3.6V
-25
0
+25
+50
+75 +100 +125
Temperature (^oC)
Frequency vs. Supply Voltage
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
2.5
3.0
3.5
4.0
4.5
5.0
5.5
V_IN(V)
Rev.A.02
Current Limit vs. Temperature
3.0
2.9
2.8
2.7
VIN = 5.0V
V_OUT = 1.2V
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
-40 -25 -10 +5 +20 +35 +50 +65 +80 +95 +110 +125
Temperature (^oC)
1.2A, 1.5MHz Synchronous
Step-Down Converter
Frequency vs. Temperature
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
V_IN = 3.6V
1.10
-50
-25
0
+25
+50
+75
+100 +125
Temperature (^oC)
Output Voltage vs. Output Current
1.90
1.89
V_OUT = 1.8V
1.88
V_IN = 3.6V
1.87
1.86
1.85
1.84
1.83
1.82
1.81
1.80
1.79
1.78
1.77
100 200 300 400 500 600 700 800 900 1200
Output Current (mA)
15