AIC1573 AIC [Analog Intergrations Corporation], AIC1573 Datasheet - Page 6

• Manufacturer Part Number: AIC1573
• Description: 5-bit DAC, Synchronous PWM Power Regulator with Simple PWM Power Regulator, LDO And Linear Controller
• Manufacturer: AIC [Analog Intergrations Corporation]

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TYPICAL PERFORMANCE CHARACTERISTICS
Fig 3. Internal Compensation Gain of PWM Error Amplifier
30
25
20
15
10
-5
160
140
120
100
5
0
80
60
40
20
1k
0
200k
Fig. 1 Soft Start Interval with 4 Outputs and P
Fig. 5
C
22 C
VCC=12V
UG1
30
90 C
0
=C
k
-40 C
LG1
Frequency (Hz)
400k
Supply Current vs. Frequency
10k
=C
UG2
Switching Frequency (Hz)
V
SS
=C
OUT2
500k
PGOOD
V
600k
OUT4
100k
C=4.7nF
700k
C=3.3nF
V
8
C=0
OUT1
C=1.5nF
0
C=650pF
0k
V
OUT3
1M
900k
GOOD
1M
100k
10M
10k
1M
1k
10k
Fig. 2
Fig. 4
Fig. 6
Over Load
Applied
R
T
Pull Up to 12V
Soft Start Initiates PWM Output
R
Over Current ON Inductor
T
Switching Frequency (Hz)
Resistance vs. Frequency
SS
100k
SS
R
T
Pull Down to GND
VDAC=3.5V
VDAC=1.3V
Inductor
Current 5A/div
AIC1573
VDAC=2V
Fault
1M
6