ame5258a AME, Inc., ame5258a Datasheet - Page 13

• Manufacturer Part Number: ame5258a
• Description: Synchronous Buck Converter
• Manufacturer: AME, Inc.

AME5258A
Rev.A.01
0.615
0.612
0.609
0.606
0.603
0.600
0.597
0.594
0.591
0.588
0.585
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
0.75
0.65
0.55
0.45
0.35
0.25
2.0
0.80
0.70
0.60
0.50
0.40
0.30
0.20
-50
-50
-50
Oscillator Frequency VS Temperature
V
-25
-25
IN
-25
AME
=4.2V
R
0
V
DS(ON)
0
0
FB
V
Temperature(
Temperature(
IN
Temperature(
=3.6V
vs Temperature
vs Temperature
+25
+25
+25
V
IN
+50
+50
+50
=2.7V
Main Switch
Synchronous Switch
o
o
o
C)
C)
C)
+75
+75
+75
+100
+100
+100
+125
+125
+125
Synchronous Buck Converter
0.7
0.6
0.5
0.4
0.3
0.2
0.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
100
90
80
70
60
50
40
30
20
0
2.5
2.5
1
Oscillator Frequency VS Supply Voltage
V
IN
=2.7V
Efficiency vs Load Current
3.5
V
R
IN
DS(ON)
=4.2V
Supply
V
3.5
IN
10
Input Voltage(V)
=3.3V
Synchronous
vs Input voltage
I
Switch
OUT
Voltage (V)
4.5
(mA)
1.5MHz, 800mA
Main Switch
4.5
100
5.5
V
OUT
=1.2V
1000
5.5
6.5
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