3083FE Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
3083FE Datasheet PDF : 28 Pages
| |||
LT3083
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Ripple Rejection, Single Supply
100
90
ILOAD = 0.1A
80
70
60
ILOAD = 1.5A
50 ILOAD = 0.5A
40
30
20
COUT = 10µF CERAMIC
CSET = 0.1µF CERAMIC
10
RIPPLE = 50mVP-P
VIN – VCONTROL = VOUT(NOMINAL) + 2V
0
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
3083 G25
Ripple Rejection, Dual Supply,
VCONTROL Pin
120
105
90
ILOAD = 0.1A
75
60 ILOAD = 1.5A
45
30 COUT = 10µF CERAMIC
CSET = 0.1µF
15 VIN = VOUT(NOMINAL) + 1V
VCONTROL = VOUT(NOMINAL) + 2V
0
10 100 1k 10k 100k
FREQUENCY (Hz)
1M 10M
3083 G26
Ripple Rejection, Dual Supply,
IN Pin
120
105
ILOAD = 0.1A
90
ILOAD = 0.5A
75
60
45
ILOAD = 1.5A
30 COUT = 10µF CERAMIC
CSET = 0.1µF
15 VIN = VOUT(NOMINAL) + 1V
VCONTROL = VOUT(NOMINAL) + 2V
0
10 100 1k 10k 100k
FREQUENCY (Hz)
1M 10M
3083 G27
Ripple Rejection (120Hz)
80
79
78
77
76
75
74
73
VIN = VCONTROL = VOUT(NOMINAL) + 2V
72 RIPPLE = 500mVP-P, ƒ = 120Hz
71
ILOAD = 0.5A
CSET = 0.1µF, COUT = 10µF
70
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3083 G28
Noise Spectral Density
1000
100
100
10
10
10
100
1k
10k
FREQUENCY (Hz)
1
100k
3083 G29
Output Voltage Noise
VOUT
100µV/DIV
8
TIME 1ms/DIV
VOUT = 1V, RSET = 20k
CSET = 0.1µF, COUT = 10µF
ILOAD = 3A
3083 G30
Error Amplifier Gain and Phase
21
18 PHASE
15
12
9
6
3
0 GAIN
–3
–6
–9
–12
–15
10
ILOAD = 0.5A
ILOAD = 1.5A
ILOAD = 3A
100
1k
10k 100k
FREQUENCY (Hz)
36
0
–36
–72
–108
–144
–180
–216
–252
–288
–324
–360
–396
1M
3083 G31
3083fa
Share Link: 