ame5251 AME, Inc., ame5251 Datasheet - Page 14

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

n Characterization Curve(For reference only)
14
AME5251
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
3
1
2
-40
V
V
I
1) EN = 2V/div
2) V
3) I
OUT
IN
OUT
-25
L
= 3.6V
= 1A
OUT
= 500mA/div
Current Limit vs. Temperature
= 1.8V
AME
-10
= 2V/div
+5 +20 +35 +50 +65 +80 +95 +110 +125
Power Off from EN
Temperature (
50 S / div
o
V
C)
V
OUT
IN
= 5.0V
= 1.2V
Dual 1A, 1.5MHz Synchronous
1
2
3
1
2
Light Load Mode output voltage ripple
V
V
I
1) V
2) V
3) I
V
V
I
1) V
2) I
OUT
OUT
IN
OUT
IN
OUT
L
= 3.6V
OUT
= 3.6V
= 50mA
SW
OUT
= 200mA/div
= 0A~1A~0A
OUT
= 1.8V
= 1.8V
= 5V/div
= 500mA/div
= 100mV/div
= 100mV/div
Step-Down Converter
Load Step
40 S / div
5 S / div
Rev. A.02