sc1486aitstr Semtech Corporation, sc1486aitstr Datasheet - Page 23

• Manufacturer Part Number: sc1486aitstr
• Description: Complete Ddr1/2/3 Power Supply Controller
• Manufacturer: Semtech Corporation

POWER MANAGEMENT
Typical Characteristics
2006 Semtech Corp.
VDDQ Efficiency (Continuous Conduction Mode)
100
100
100
95
90
85
80
75
70
65
60
55
50
95
90
85
80
75
70
65
60
55
50
95
90
85
80
75
70
65
60
55
50
0.0
0
0
VDDQ Efficiency (Power Save Mode)
vs. Output Current vs. Input Voltage
vs. Output Current vs. Input Voltage
Output Current vs. Input Voltage
1
1
0.2
2
2
0.4
VTT Efficiency vs.
3
3
0.6
4
4
I
I
I
OUT
Please refer to Figure 4 on Page 17 for test schematic
OUT
OUT
0.8
5
5
(A)
(A)
(A)
V
V
V
V
BAT
BAT
BAT
BAT
= 20V
V
V
6
6
= 8V
1.0
= 8V
= 20V
BAT
BAT
= 8V
= 20V
7
7
1.2
8
8
1.4
9
9
1.6
10
10
23
VDDQ Output Voltage (Continuous Conduction Mode)
1.820
1.816
1.812
1.808
1.804
1.800
1.796
1.792
1.788
1.784
1.780
1.820
1.816
1.812
1.808
1.804
1.800
1.796
1.792
1.788
1.784
1.780
0.910
0.908
0.906
0.904
0.902
0.900
0.898
0.896
0.894
0.892
0.890
VDDQ Output Voltage (Power Save Mode)
0.0
0
0
vs. Output Current vs. Input Voltage
vs. Output Current vs. Input Voltage
REFIN = 0.9V
Output Current vs. Input Voltage
1
1
0.2
VTT Output Voltage vs.
2
2
0.4
3
3
0.6
4
4
I
I
I
OUT
OUT
OUT
0.8
5
5
(A)
(A)
(A)
V
V
V
V
BAT
BAT
BAT
BAT
= 20V
= 8V
6
6
= 20V
1.0
= 8V
SC1486A
7
7
www.semtech.com
V
1.2
V
BAT
BAT
8
8
= 20V
= 8V
1.4
9
9
1.6
10
10