ame5251 AME, Inc., ame5251 Datasheet - Page 13

• Manufacturer Part Number: ame5251
• Description: Dual 1a, 1.5mhz Synchronous Step-down Converter
• Manufacturer: AME, Inc.

n Characterization Curve(For reference only)
Rev.A.02
AME5251
0.620
0.615
0.610
0.605
0.600
0.595
0.590
0.585
0.580
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
3.0
2.9
2.8
2.7
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
2.5
-50
-40
Reference Voltage vs. Temperature
-25
AME
Current Limit vs. Temperature
Frequency vs. Supply Voltage
-25
3.0
-10 +5
0
Temperature (
Temperature (
3.5
+20 +35 +50 +65 +80 +95 +110 +125
+25
V
IN
4.0
(V)
+50
o
4.5
V
o
C)
C)
V
OUT
+75
IN
V
IN
= 3.3V
= 1.2V
= 3.6V
+100
5.0
+125
5.5
Dual 1A, 1.5MHz Synchronous
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
1.90
1.89
1.88
1.87
1.86
1.85
1.84
1.83
1.82
1.81
1.80
1.79
1.78
1.77
3.0
2.9
2.8
2.7
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
100
-50
-40
Output Voltage vs. Output Current
-25
200
Current Limit vs. Temperature
-25
Frequency vs. Temperature
-10
300
Step-Down Converter
Output Current(mA)
+5
0
Temperature (
Temperature (
400
+20
+25
500
+35 +50
600
+50
+65 +80
o
o
700
C)
C)
V
+75
V
V
OUT
OUT
IN
V
V
800
IN
= 3.6V
= 1.2V
IN
+95 +110 +125
= 1.8V
= 3.6V
= 3.6V
+100
900
+125
1000
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