SC2440 SEMTECH [Semtech Corporation], SC2440 Datasheet - Page 6

• Manufacturer Part Number: SC2440
• Description: 2.5 MHz Dual Switching Regulator with Integrated 2A Switches
• Manufacturer: SEMTECH [Semtech Corporation]

POWER MANAGEMENT
Typical Characteristics
2005 Semtech Corp.
1.02
1.01
1.00
0.99
0.98
0.97
2.8
2.7
2.6
2.5
2.4
3.0
2.8
2.6
2.4
2.2
2.0
-50
-50
V
-50
Feedback Voltage vs Temperature
IN
Start Threshold vs Temperature
-25
-25
-25
Switch Current Limit
vs Temperature
Temperature (°C)
Temperature (°C)
Temperature (°C)
0
0
0
25
25
25
50
50
50
75
75
75
V
IN
100 125
100 125
100 125
= 5V
1.8
1.6
1.4
1.2
1.0
1000
400
300
200
100
100
10
-50
1
0.0
SYNC Input Logic Thresholds
0
-25
Frequency Setting Resistor
Switch Saturation Voltage
0.5
0.5
vs Channel Frequency
vs Temperature
Temperature (°C)
0
vs Switch Current
-40°C
Switch Current (A)
Frequency (MHz)
1
25
1.0
25°C
6
1.5
125°C
50
V
V
1.5
IH
IL
75
2
V
100 125
IN
2.0
2.5
= 5V
2.5
3
0.40
0.35
0.30
0.25
0.20
1.6
1.5
1.4
1.3
1.2
80
60
40
20
0
Channel Frequency vs Temperature
-50
0.0
-50 -25
V
V
-25
IN
BST
SS Shutdown Threshold
= 5V
0.5
= 8V
Temperature (°C)
Boost Pin Current
vs Switch Current
vs Temperature
Switch Current (A)
Temperature (°C)
0
0
-40°C
1.0
25
25
125°C
50
50
1.5
R
www.semtech.com
SC2440
OSC
V
75
SS1
75 100 125
=12.1K
2.0
= V
100 125
SS2
2.5