AIC1880 AIC [Analog Intergrations Corporation], AIC1880 Datasheet - Page 5

• Manufacturer Part Number: AIC1880
• Description: Low Noise, Step-Up PWM DC/DC Converter
• Manufacturer: AIC [Analog Intergrations Corporation]

10.60
10.55
10.50
10.45
10.40
10.35
10.30
10.25
10.20
10.15
10.10
10.05
10.00
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Fig. 7 Load-transient response at V
0
20
SHDN
Fig. 9 Startup waveform without soft-start
V
I
L
OUT
TA = -20
40
∆ I
OUT
60
TA = +85
Fig. 5 Load regulation
o
f
L=10µH
C
R
C
C
OSC
C
OUT
COMP
COMP
COMP2
OUTPUT CURRENT (mA)
80
=640kHz
=32µF
= 33kΩ
= 1500pF
= 20pF
100 120 140 160 180 200 220 240 260
o
C
V
OUT
TA = +25
IN
AC Couple
=3.3V, V
V
V
f
I
C
OSC
OUT
o
IN
OUT
C
OUT
=3.3V
=640kHz
=10mA
=10V
=32µF
OUT
=10V
1400
1600
1200
1000
Fig. 8 Load-transient response at V
800
600
200
400
0
Fig. 6 Maximum output current vs. Input voltage
3.0
SHDN
Fig. 10 Startup waveform with soft-start
V
3.2
I
OUT
L
3.4
V
∆ I
OUT
f
L=6.8µH
C
R
C
C
OUT
OSC
OUT
COMP
COMP
COMP2
= 5V
3.6
=640kHz
=44µF
INPUT VOLTAGE (V)
= 62kΩ
= 820pF
= 10pF
3.8
V
4.0
OUT
= 10V
4.2
V
IN
OUT
=3.3V, V
AC Couple
4.4
V
V
f
I
C
C
OSC
OUT
f
IN
OUT
OUT
SS
OSC
=3.3V
=4.7nF
=10mA
=640kHz
=10V
=32µF
AIC1880
4.6
= 640kHz
OUT
=5V
4.8
5.0
5