AIC1880 Ver la hoja de datos (PDF) - Analog Intergrations
Número de pieza
componentes Descripción
Fabricante
AIC1880 Datasheet PDF : 11 Pages
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AIC1880
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
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
0
TA = +85oC
TA = -20oC
TA = +25oC
20 40 60 80 100 120 140 160 180 200 220 240 260
OUTPUT CURRENT (mA)
Fig. 5 Load regulation
1600
1400
1200
1000
V OUT = 5V
800
600
V OUT = 10V
400
200
0
3.0 3.2 3.4
f OSC = 640kHz
3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0
INPUT VOLTAGE (V)
Fig. 6 Maximum output current vs. Input voltage
∆IOUT
fOSC=640kHz
L=10µH
COUT=32µF
RCOMP = 33kΩ
CCOMP = 1500pF
CCOMP2 = 20pF
VOUT AC Couple
∆IOUT
fOSC=640kHz
L=6.8µH
COUT=44µF
RCOMP = 62kΩ
CCOMP = 820pF
CCOMP2 = 10pF
VOUT AC Couple
Fig. 7 Load-transient response at VIN=3.3V, VOUT=10V
Fig. 8 Load-transient response at VIN=3.3V, VOUT=5V
SHDN
VOUT
IL
VIN=3.3V
VOUT=10V
fOSC=640kHz
IOUT=10mA
COUT=32µF
SHDN
VOUT
IL
VIN=3.3V
VOUT=10V
fOSC=640kHz
IOUT=10mA
COUT=32µF
CSS=4.7nF
Fig. 9 Startup waveform without soft-start
Fig. 10 Startup waveform with soft-start
5
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