SC2620 Semtech Corporation, SC2620 Datasheet - Page 6

• Manufacturer Part Number: SC2620
• Description: 30V Step-down Regulator
• Manufacturer: Semtech Corporation

POWER MANAGEMENT
Typical Characteristics
2008 Semtech Corp.
0.40
0.35
0.30
0.25
0.20
1.02
1.01
1.00
0.99
0.98
0.97
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400
300
200
100
0.0
-50 -25
-50
Feedback Voltage vs Temperature
-25
Switch Saturation Voltage
SS Shutdown Threshold
0.5
vs Switch Current
Tempe rature (°C)
-40°C
vs Temperature
Switch Current (A)
Temperature (°C)
0
0
1.0
25°C
25
25
125°C
50
50
1.5
V
SS1
75 100 125
75
V
2.0
= V
IN
100 125
= 5V
SS2
2.5
1000
100
200
150
100
3.6
3.4
3.2
3.0
2.8
2.6
10
50
0
0.0
-50
0
Frequency Setting Resistor
V
-25
IN
vs Channel Frequency
5
Shutdown Current vs V
Switch Current Limit
vs Temperature
Temperature (°C)
Frequency (M Hz)
0
0.5
10
25
6
V
IN
15
V
(V)
50
SS1
T
A
1.0
= V
20
= 25°C
75
V
SS2
IN
25
= 5V
100 125
= 0
IN
1.5
30
1.10
1.05
1.00
0.95
0.90
80
60
40
20
0
4
3
2
1
0
-50
0.0
0
V
V
1.4MHz
Frequency vs Temperature
-25
IN
BST
600kHz
V
= 5V
0.5
5
IN
Normalized Channel
= 8V
Quiescent Current vs V
Boost Pin Current
vs Switch Current
Switch Current (A)
Temperature (°C)
0
10
-40°C
1.0
25
V
IN
15
125°C
(V)
50
1.5
www.semtech.com
SC2620
20
75
T
2.0
A
25
100 125
= 25°C
IN
2.5
30