AME5252 Datasheet, PDF (15/18 Pages) Analog Microelectronics – Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Converter

AME
AME5252
Dual Synchronous, 600mA, 1.5MHz
Step-Down DC/DC Converter
Efficiency vs Load Current
100
90
VIN=2.7V
80
70
60
V_IN=3.6V
50
V _IN =4.2V
40
30
V _OUT =1.5V
20
1
10
100
1000
IOUT(mA)
Current Limit vs V_IN
1.9
1.8
1.7
Channel 1
1.6
1.5
1.4
1.3
1.2
Channel 2
1.1
1.0
0.9
V OUT 1= 1.2V
0.8
V OUT 2= 1.2V
0.7
2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
VIN (V)
Current Limit vs Temperature
2.10
2.00
1.90
1.80
1.70
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
0.80
0.70
-40 -25 -10
Channel 1
Channel 2
V_IN =3.6V
V _OUT1= 1.2V
V _OUT2= 1.2V
+5 +20 +35 +50 +65 +80 +95 +110 +125
Temperature(^oC)
1.844
1.834
1.824
1.814
1.804
1.794
1.784
1.774
1
Output Voltage vs Load Current
10
100
IOUT(mA)
1000
Current Limit vs Temperature
2.10
2.00
1.90
1.80
1.70
Channel 1
1.60
1.50
1.40
1.30
1.20
Channel 2
1.10
1.00
V IN=3.3V
0.90
V OUT 1= 1.2V
C
0.80
V OUT 2= 1.2V
0.70
-40 -25 -10 +5 +20 +35 +50 +65 +80 +95 +110 +125
Temperature(^oC)
Current Limit vs Temperature
2.10
2.00
1.90
1.80
1.70
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
0.80
0.70
-40
Channel 1
Channel 2
-25 -10
V_IN=5.0V
V_{OUT 1}=1.2V
V_{OUT 2}=1.2V
+5 +20 +35 +50 +65 +80 +95 +110 +125
Temperature(^oC)
Rev.C.01
15