LT3028 Просмотр технического описания (PDF) - Linear Technology
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LT3028
Linear Technology
LT3028 Datasheet PDF : 16 Pages
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LT3028
TYPICAL PERFOR A CE CHARACTERISTICS
Channel-to-Channel Isolation
100
90
CHANNEL 2
80
70
CHANNEL 1
60
50
40
GIVEN CHANNEL IS TESTED
30 WITH 50mVRMS SIGNAL ON
20
OPPOSING CHANNEL, BOTH
CHANNELS DELIVERING FULL
10 CURRENT
0 TJ = 25°C
10
100
1k
10k
FREQUENCY (Hz)
100k 1M
3028 G34
Channel-to-Channel Isolation
VOUT1
20mV/DIV
VOUT2
20mV/DIV
COUT1 = 22µF 50µs/DIV
COUT2 = 10µF
CBYP1 = CBYP2 = 0.01µF
∆IL1 = 50mA TO 500mA
∆IL2 = 10mA TO 100mA
VIN = 6V, VOUT1 = VOUT2 = 5V
3028 G50
Output 1 Load Regulation
5
∆IL = 1mA TO 500mA
0
Output Noise Spectral Density
10
COUT = 10µF
CBYP = 0
IL = FULL LOAD
TJ = 25°C
1
VOUT SET FOR 5V
VOUT =VADJ
–5
0.1
Output 2 Load Regulation
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
∆IL = 1mA TO 100mA
–10
–50 –25 0 25 50 75
TEMPERATURE (°C)
100 125
3028 G35
Output Noise Spectral Density
10
VOUT SET FOR 5V
1
COUT = 10µF
IL = FULL LOAD
TJ = 25°C
CBYP = 1000pF
CBYP = 100pF
VOUT =VADJ
0.1
CBYP = 0.01µF
–10
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3028 G36
RMS Output Noise
vs Bypass Capacitor
140
VOUT = 5V
120
100
80 OUTPUT 1
COUT = 10µF
IL = FULL LOAD
fBW = 10Hz TO 100kHz
TJ = 25°C
OUTPUT 2
60 VOUT = 1.22V
OUTPUT 2
40
OUTPUT 1
20
0
10
100
1000
10000
CBYP (pF)
3028 G39
0.01
0.01
0.1
1
10
FREQUENCY (kHz)
100
3028 G37
Output 2
RMS Output Noise vs Load
Current (10Hz to 100kHz)
160
COUT2 = 10µF
140 TJ = 25°C
CBYP = 0
120
CBYP = 0.01µF
100
VOUT2 SET FOR 5V
80
60
VOUT2 =VADJ2
40
20
0
0.01
VOUT2 SET FOR 5V
VOUT2 =VADJ2
0.1
1
10
100
LOAD CURRENT (mA)
3028 G40
0.01
0.01
0.1
1
10
FREQUENCY (kHz)
100
3028 G38
Output 1
RMS Output Noise vs Load
Current (10Hz to 100kHz)
160
COUT1 = 10µF
140 TJ = 25°C
CBYP = 0
120
CBYP = 0.01µF
100
VOUT1 SET FOR 5V
80
60
40
20
0
0.01
VOUT1 = VADJ1
VOUT1 SET FOR 5V
VOUT1 = VADJ1
0.1
1
10
100
LOAD CURRENT (mA)
1000
3028 G41
3028f
8
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