SC4612H Datasheet, PDF (8/21 Pages) Semtech Corporation – 40V Synchronous Buck Controller

POWER MANAGEMENT
Typical Characteristics
Typical Soft Start Current vs Temperature
25
24
23
22
-50
0
50
100
Temperature (^OC)
SC4612H
Typical Error Amp Output Current vs Temperature
1.5
1.0
Source; V_EAO=0V; V_FB=0V
0.5
0.0
-0.5
-1.0
Sink; V_EAO=1.5V; V_FB=0.6V
150
-1.5
-50
0
50
100
150
Temperature (^OC)
Typical DRV Voltage vs Load Current
8
4.5
-40C
4.4
7
25C
4.3
4.2
6
4.1
125C
5
4.0
0
20
40
60
80
100
120
140
-50
IDRV (mA)
Typical UVLO vs Temperature
VDD Rising
VDD Falling
0
50
100
150
Temperature (^OC)
503
502
501
500
499
498
497
-50
Typical VFB vs Temperature
VDD=42V
VDD=5V
0
50
100
Temperature (^OC)
© 2008 Semtech Corp.
Typical Oscillator Charge Current vs Temperature
104
102
100
98
96
94
150
-50
0
50
100
150
Temperature (^OC)
8
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