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AME5250 Datasheet, PDF (15/21 Pages) Analog Microelectronics – 1A, 1.5MHz Synchronous Step-Down Converter
AME
AME5250
n Characterization Curve (Contd.)
Current Limit vs. Temperature
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
-40 -25 -10
VIN = 5.0V
VOUT = 1.2V
+5 +20 +35 +50 +65 +80 +95 +110 +125
Temperature (oC)
Power Off from EN
1A, 1.5MHz Synchronous
Step-Down Converter
Light Load Mode
Output Voltage Ripple
5µS/Div
VVIOIOUNUT=T==35.106.mV8VA
1)
2)
3)
IVVL SO=WU2T=0=501Vm0/D0Ami/vDViv/Div
Load Step
Rev.B.04
VIVOIOUNUT=T==31.1A6.V8V
50µS/Div
1) EN = 2V/Div
2)
3)
IVL =OU5T0=02mVA/D/Diviv
40µS/Div
VIVOOIUNUT=T==30.1A6.~V81VA~0A
1)
2)
IVOOUUTT==510000mmAV/D/Diviv
15