ame5258 AME, Inc., ame5258 Datasheet - Page 13
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ame5258
Manufacturer Part Number
ame5258
Description
Synchronous Buck Converter
Manufacturer
AME, Inc.
Datasheet
1.AME5258.pdf
(17 pages)
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AME5258
Rev.A.05
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, 600mA
Main Switch
4.5
100
5.5
V
OUT
=1.2V
1000
5.5
6.5
13