SC2738 Datasheet, PDF (10/13 Pages) Semtech Corporation – Ultra Low Output Voltage Dual Linear FET Controller

SC2738
POWER MANAGEMENT
Typical Characteristics
Quiescent Current vs. Junction Temperature
vs. Input Voltage
900
Both V_EN = 5V
800 _{Both VADJ < VBG}
700
600
V_IN = 12V
500
400
V_IN = 5V
300
200
100
0
-50
-25
0
25
50
75
T_J (°C)
100
125
Start Threshold vs.
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-50
Junction Temperature
V_IN rising
V_IN falling
-25
0
25
50
75
T_J (°C)
100
125
Reference Voltage vs.
Junction Temperature
0.510
0.508
V_IN = V_EN = 5V
0.506
0.504
0.502
0.500
0.498
0.496
0.494
0.492
0.490
-50
-25
0
25
50
75
T_J (°C)
100
125
PRELIMINARY
Standby Current vs. Junction Temperature
vs. Input Voltage
100
Both V_EN = 0V
V_IN = 12V
10
1
0.1
V_IN = 5V
0.01
-50
-25
0
25
50
75
100
125
T_J (°C)
Enable Input Threshold Voltage
vs. Junction Temperature
1.8
V_IN = 5V
1.6
1.4
V_IH
1.2
1.0
V_IL
0.8
0.6
0.4
-50
-25
0
25
50
75
100
125
T_J (°C)
Drive Pin Output Current (Sourcing) at Startup
vs. Junction Temperature vs. Input Voltage
20
18
V_EN = 5V
V_ADJ < V_TH(PGD)
16
14
V_IN = 12V
12
10
8
V_IN = 5V
6
4
2
0
-50
-25
0
25
50
75
100
125
T_J (°C)
 2004 Semtech Corp.
10
www.semtech.com