ame5269 AME, Inc., ame5269 Datasheet - Page 13

• Manufacturer Part Number: ame5269
• Description: 2a, 28v, 340khz Synchronous Rectified Step-down Converter
• Manufacturer: AME, Inc.

n Characterization Curve(For reference only)
Rev. A.01
AME5269
400
390
380
370
360
350
340
330
320
310
300
290
280
270
260
100
90
80
70
60
50
40
30
20
10
0
100
-50
-25
AME
Efficiency vs. Output Current
Frequency vs. Temperature
Output Current (mA)
0
Temperature (
+25
1000
+50
o
C)
V
V
C
C
L = 10 H
+75
OUT
IN
IN
OUT
V
= 12V
= 20 F
IN
= 3.3V
= 44 F
= 12V
+100
10000
+125
i e
C
Rectified Step-Down Converter
2A, 28V, 340KHz Synchronous
100
90
80
70
60
50
40
30
20
10
0
1
2
3
4
100
V
V
I
C
1) EN = 5V/div
2) V
3) I
4) I
OUT
IN
OUT
SS
L
OUT
= 12V
= 0.1 F
= 2000mA
OUT
= 2A/div
= 5V
Efficiency vs. Output Current
= 2A/div
= 2V/div
Output Current (mA)
Start-Up form EN
4mS / div
1000
V
V
C
C
L = 15 H
OUT
IN
IN
OUT
= 12V
= 20 F
= 5V
= 44 F
10000
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