AME5250A Datasheet, PDF (14/22 Pages) Analog Microelectronics – 1A, 1.5MHz Synchronous Step-Down Converter

AME
AME5250A
n Characterization Curve
Reference Voltage vs. Temperature
0.620
0.615
0.610
0.605
0.600
0.595
0.590
0.585
V_IN = 3.6V
0.580
-50
-25
0
+25
+50
+75 +100 +125
Output Current (mA)
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)
Current Limit vs. Temperature
3.0
2.9
2.8
VIN = 3.3V
2.7
VOUT = 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)
14
1A, 1.5MHz Synchronous
Step-Down Converter
Frequency vs. Temperature
1.90
1.85
1.80
1.75
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
-50
V_IN = 3.6V
-25
+0
+25 +50
+75 +100 +125
Output Current (mA)
Output Voltage vs. Output Current
1.90
1.89
VOUT = 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
0 _{100 200 300 400 500 600 700 800 900 1000}
Output Current (mA)
Current Limit vs. Temperature
3.0
2.9
2.8
VIN = 3.6V
2.7
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)
Rev. A.03