AME5251A Datasheet, PDF (13/19 Pages) Analog Microelectronics – Dual 1A, 1.5MHz Synchronous Step-Down Converter

AME
AME5251A
n Characterization Curve (Contd.)
Reference Voltage vs. Temperature
0. 620
0. 615
0. 610
0. 605
0. 600
0. 595
0. 590
0. 585
VIN = 3.6V
0. 580
-50
-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)
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)
Rev.A.04
Dual 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
V_IN = 3.6V
1 .20
1 .15
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
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
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)
13