LT3030IUFD 데이터 시트보기 (PDF) - Linear Technology
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LT3030IUFD Datasheet PDF : 22 Pages
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LT3030
Typical Performance Characteristics TJ = 25°C, unless otherwise noted.
Reverse Current
500
450
VIN1 = VIN2 = 0V
VADJ1 = VOUT1 = 1.220V
400 VADJ2 = VOUT2 = 1.220V
350
300
250
200
IADJ1 OR IADJ2
150
IOUT1
100
50
IOUT2
0
–75 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3030 G28
IADJ = FLOWS INTO ADJ PIN TO GND PIN
IOUT = FLOWS INTO OUT PIN TO IN PIN
OUT1 Input Ripple Rejection
100
90
80
70
60
50
40
30
20
VIN1 = VOUT1(NOMINAL) + 1.5V
+ 500mVP-P RIPPLE
10 f = 120Hz
IL1 = 750mA
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3030 G31
OUT1 Input Ripple Rejection
100
90
80
70
COUT1 = 47µF
60
COUT1 = 22µF
50
40
COUT1 = 10µF
30
20
TJ = 25°C
IL1 = 750mA, CBYP1 = 0
10 VIN1 = VOUT1(NOMINAL) + 1V
+ 50mVRMS RIPPLE
0
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
3030 G29
OUT2 Input Ripple Rejection
100
90
80
COUT2 = 10µF
70
COUT2 = 22µF
60
50
40
30
COUT2 = 3.3µF
20
TJ = 25°C
IL2 = 250mA, CBYP2 = 0
10 VIN2 = VOUT2(NOMINAL) + 1V
+ 50mVRMS RIPPLE
0
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
3030 G32
OUT1 Input Ripple Rejection
100
90
80
70 CBYP1 = 10nF
60
CBYP1 = 1000pF
50
40 CBYP1 = 100pF
30
20
TJ = 25°C
IL1 = 750mA, COUT1 = 22µF
10 VIN1 = VOUT1(NOMINAL) + 1V
+ 50mVRMS RIPPLE
0
10 100 1k 10k 100k
FREQUENCY (Hz)
1M 10M
3030 G30
OUT2 Input Ripple Rejection
100
90
80
70
CBYP2 = 1000pF
CBYP2 = 10nF
60
50
40
CBYP2 = 100pF
30
20
TJ = 25°C
IL2 = 250mA, COUT2 = 10µF
10 VIN2 = VOUT2(NOMINAL) + 1V
+ 50mVRMS RIPPLE
0
10 100 1k 10k 100k
FREQUENCY (Hz)
1M 10M
3030 G33
OUT2 Input Ripple Rejection
100
90
80
70
60
50
40
30
20
VIN2 = VOUT2(NOMINAL) + 1.5V
+ 500mVP-P RIPPLE
10 f = 120Hz
IL2 = 250mA
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3030 G34
8
Channel-to-Channel Isolation
100
Channel-to-Channel Isolation
90
80
CHANNEL 1
70
60
CHANNEL 2
VOUT1
100mV/DIV
50
VOUT2
40
100mV/DIV
30 GIVEN CHANNEL IS TESTED WITH
20
50mVRMS SIGNAL ON OPPOSING
CHANNEL, BOTH CHANNELS
10 DELIVERING FULL CURRENT
TJ = 25°C
0
10 100 1k 10k 100k
FREQUENCY (Hz)
1M 10M
3030 G35
50µs/DIV
3030 G36
COUT1 = 10µF
∆IL1 = 50mA TO 750mA
COUT2 = 3.3µF
∆IL2 = 50mA TO 250mA
CBYP1 = CBYP2 = 0.01µF VIN = 6V, VOUT1 = VOUT2 = 5V
3030fa
For more information www.linear.com/LT3030
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