AME5287 Datasheet, PDF (12/20 Pages) Analog Microelectronics – Rectified Step-Down Converter

AME
AME5287
n Characterization Curve
Efficiency vs. Output Current
100
90
80
70
VOUT=3. 3V ^{VOUT =2.5V VOUT=1.8V}
60
VOUT= 1 .2V
50
VOUT =1.0V
40
30
20
V_IN = 5V
10
RFREQ = 18K
0
0
500
1000
1500
2000
2500
3000
Output Current (mA)
Efficiency vs. Output Current
100
90
80
70
V_OUT=3.3V _VOUT=2.5V
60
V_OUT =1.8V _VOUT=1.2V
50
VOUT= 1.0 V
40
30
20
V_IN = 5V
10
RFREQ = 47K
0
0
500
1000 1500 2000
2500
3000
Output Current (mA)
3A, 300KHz ~ 2MHz Synchronous
Rectified Step-Down Converter
Efficiency vs. Output Current
100
90
80
70
60
50
40
30
20
10
0
0
VOUT= 3.3 V
VOUT= 2.5 V
V_OUT=1. 8V
VOUT =1.2V
V OUT=1 .0 V
VIN = 5V
RFREQ = 30K
500
1000
1500
2000
2500
3000
Output Current (mA)
Efficiency vs. Output Current
100
90
80
70
60
50
40
30
20
10
0
0
V OUT=3 .3 V
VOUT=2. 5V
VOUT= 1 .8V
V OUT=1 .2 V
VOUT= 1.0 V
VIN = 5V
RFREQ = NC
500
1000
1500
2000
2500
3000
Output Current (mA)
12
Rev. A.01