Datasheet

   
   
SLUS419C − AUGUST 1999 − REVISED NOVEMBER 2001
9
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TYPICAL CHARACTERISTICS
Figure 1
MULTIPLIER OUTPUT CURRENT
vs.
VOLTAGE ERROR AMPLIFIER OUTPUT
50
200
250
350
0
100
300
150
IAC = 150
µ
A
IAC = 300
µ
A
IAC = 500
µ
A
I
MOUT
- Multiplier Output Current − µA
VAOUT − Voltage Error Amplifier Output − V
01 23 45
Figure 2
MULTIPLIER GAIN
vs.
VOLTAGE ERROR AMPLIFIER OUTPUT
0.7
1.1
1.3
1.5
0.5
0.9
IAC = 300
µ
A
IAC = 500
µ
A
IAC = 150
µ
A
Multiplier Gain − K
VAOUT − Voltage Error Amplifier Output − V
12345
Figure 3
VFF − Feedforward Voltage − V
100
300
400
500
0
200
VAOUT = 3 V
VAOUT = 2 V
VAOUT = 4 V
VAOUT = 5 V
(VFF × I
MOUT
) − µW
MULTIPLIER CONSTANT POWER PERFORMANCE
0 1234
5
Figure 4
10 12 14 16 20
10
14
15
17
8
12
18
9
11
13
16
RECOMMENDED MINIMUM GATE RESISTANCE
vs.
SUPPLY VOLTAGE
R
GATE
-
Recommended Minimum Gate Resistance
−
Ω
VCC − Supply Voltage − V