AME5258 Datasheet, PDF (14/17 Pages) AMETHERM Circuit Protection Thermistors – 1.5MHz, 600mA Synchronous Buck Converter

AME
AME5258
Efficiency vs Load Current
100
90
80
70
60
50
40
30
20
1
V IN =2.7 V
VI N= 3 .3V
V IN =4.2 V
VOUT =1. 5V
10
100
1000
IOUT (mA)
Efficiency vs Load Current
100
95
90
VIN=2. 7V
85
80
75
V IN =3 .6V
70
V IN =4 .2 V
65
60
55
V_OUT=2 .5V
50
1
10
100
1000
IOUT (mA)
Current Limit vs Input Voltage
1800
1700
1600
1500
1400
1300
1200
1100
1000
2.5
3 .0
3. 5
4.0
4 .5
5. 0
5.5
Temperature (^oC)
14
1.5MHz, 600mA
Synchronous Buck Converter
Efficiency vs Load Current
95
90
VIN=2.7V
85
80
V IN=3. 6V
75
70
VIN=4.2V
65
60
55
V_OUT=1.8V
50
1
10
100
1000
I_OUT (mA)
Output Voltage vs Load Current
1.844
1.834
1.824
1.814
1.804
1.794
1.784
1.774
0
100 200 300 400 500 600 700 800 900
I_OUT (mA)
Rev.A.05