SNVS178G – JANUARY 2002 – REVISED FEBRUARY 2013
Typical Performance Characteristics (continued)
Unless otherwise specified, T
J
= 25°C
PGATE Voltage
vs
Input Voltage
INPUT VOLTAGE - PGATE VOLTAGE (V)
6.0
5.5
T
J
=125qC
5.0
4.5
T
J
= 25qC
10
Typical V
PGATE
vs
Time
V
IN
= 9V
8
C
PGATE
= 1800 pF
C
PGATE
= 1020 pF
4
C
PGATE
= 540 pF
C
PGATE
= 110 pF
2
T
J
= -40qC
4.0
3.5
3.0
4
12
28
20
INPUT VOLTAGE (V)
36
0
0
V
PGATE
(V)
6
50
T (ns)
100
150
Minimum ON Time
vs
Temperature
160
140
MINIMUM ON TIME (ns)
120
100
80
60
V
IN
= 24V
40
20
V
IN
= 12V
V
IN
= 4.5V
OPERATING ON TIME (Ps)
16
20
Operating ON Time vs
Output Load Current
(V
IN
= 4.5V)
3.3V
OUT
12
8
4
1.242V
OUT
0
-20 -40
0
20
40 60
80 100 120 140
JUNCTION TEMPERATURE (°
C)
0
0
200
400
600
800
1000
OUTPUT LOAD CURRENT (mA)
Operating ON Time vs
Output Load Current
(V
IN
= 12V)
5
100
90
Efficiency vs
Load Current
(V
OUT
= 3.3V, L = 6.8µH)
V
IN
= 4.5V
OPERATING ON TIME (Ps)
4
EFFICIENCY (%)
80
70
60
50
40
V
IN
= 12V
3
3.3V
OUT
2
5.0V
OUT
1
1.242V
OUT
0
0
200
400
600
800
1000
OUTPUT LOAD CURRENT (mA)
10
100
1000
10000
LOAD CURRENT (mA)
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