AMC3100 Datasheet, PDF (5/10 Pages) ADDtek Corp – 1.5MHz, 600mA SYNCHRONOUS STEP-DOWN CONVERTER

CHARACTERIZATION CURVES
AMC3100
Efficiency vs Output Current
100
90
V_IN=2.7V
80
70
V_IN=3.6V
60
V_IN=5.5V
50
V_IN=4.2V
40
30
20
V_OUT=1.5V
TA=25°C
10
0
0.1
Output Cu1r0rent ( mA )
1000
Efficiency vs Output Current
100
90
V_IN=2.7V
80 ^VIN=3.6V
70
60
V_IN=5.5V
50
V_IN=4.2V
40
30
20
V_OUT=1.8V
10
TA=25°C
0
0.1
10
Output Current ( mA )
1000
Efficiency vs Output Current
100
90
V_IN=2.7V
80
V_IN=4.2V
70
V_IN=5.5V
60
50
V_IN=3.6V
40
30
20
V_OUT=2.5V
TA=25°C
10
0
0.1
10
1000
Output Current ( mA )
Efficiency vs Input Voltage
100
95
I_LOAD=250mA
90
85
I_LOAD=100mA
80
75
70 ^ILOAD^=300mA
I_LOAD=10mA
65
I _{LO AD}=600m A
60
55
V_OUT=2.5V
TA=25°C
50
2
3
4
5
6
Input Voltage ( V )
Oscillator Frequency vs
Tem perature
1.8
1.7 ^VIN=3.6V
V_OUT=1.5V
1.6
1.5
1.4
1.3
I_LOAD=200mA
1.2
I_LOAD=100mA
1.1
1
-50 -25 0 25 50 75 100 125 150
Temperature ( °C )
Oscillator Frequency vs
Supply Voltage
1.8
V_OUT=1.5V
1.7
TA=25°C
1.6
I_LOAD=100 mA
1.5
1.4
1.3
1.2
2
I_LOAD=200 mA
3
4
5
6
Supply Voltage ( V )
Load Regulation
1.55
1.54
V_IN=3.6V
V_OUT=1.5V
TA=25°C
1.53
1.52
1.51
1.5
0
100 200 300 400 500 600 700 800
Output Current ( mA )
R_{DS (ON)} vs Input Voltage
0.6
0.5
I_LOAD=100 mA
TA=25°C
0.4
Main switch
0.3
0.2
0.1
Synchronous switch
0
2
3
4
5
6
7
Input Voltage ( V )
R_{DS (ON)} vs Tem perature
0.6
0.5
V_IN=3.6V Main switch
V_IN=2.7V
0.4
0.3
0.2
V_IN=4.2V _Synchronous
0.1
switch
0
-50 -25 0 25 50 75 100 125 150
Temperature ( °C )
Copyright © 2006 ADDtek Corp.
5
DD010_A -- JUNE 2006