Datasheet

6
LT3027
3027fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TEMPERATURE (°C)
–50
RIPPLE REJECTION (dB)
100
3027 G20
050
80
70
60
50
40
30
20
10
0
–25 25 75 125
V
IN
= V
OUT (NOMINAL)
+
1V + 0.5V
P-P
RIPPLE
AT f = 120Hz
I
L
= 50mA
Input Ripple Rejection
Minimum Input Voltage
TEMPERATURE (°C)
–50
MINIMUM INPUT VOLTAGE (V)
2.5
2.0
1.5
1.0
0.5
0
0
50
75
3027 G22
–25
25
100
125
I
L
= 100mA
I
L
= 50mA
Load Regulation
Output Noise Spectral Density
Output Noise Spectral Density
RMS Output Noise vs
Bypass Capacitor
50µs/DIV
C
OUT1
, C
OUT2
= 10µF
C
BYP1
, C
BYP2
= 0.01µF
∆I
L1
= 10mA to 100mA
∆I
L2
= 10mA to 100mA
V
IN
= 6V, V
OUT1
= V
OUT2
= 5V
V
OUT1
20mV/DIV
V
OUT2
20mV/DIV
3027 G21a
FREQUENCY (kHz)
CHANNEL-TO-CHANNEL ISOLATION (dB)
100
90
80
70
60
50
40
30
20
10
0
0.01 1 10 1000
3027 G21b
0.1 100
I
LOAD
= 100mA PER CHANNEL
TEMPERATURE (°C)
–50
LOAD REGULATION (mV)
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
05075
3027 G23
–25 25 100 125
∆
IL
= 1mA TO 100mA
FREQUENCY (kHz)
OUTPUT NOISE SPECTRAL DENSITY (µV/√Hz)
0.01 1 10 100
3027 G24
0.1
10
1
0.1
0.01
V
OUT
SET FOR 5V
V
OUT
=V
ADJ
C
OUT
= 10µF
C
BYP
= 0
I
L
= 100mA
FREQUENCY (kHz)
OUTPUT NOISE SPECTRAL DENSITY (µV/√Hz)
0.01 1 10 100
3027 G25
0.1
10
1
0.1
0.01
V
OUT
SET FOR 5V
V
OUT
=V
ADJ
C
OUT
= 10µF
I
L
= 100mA
C
BYP
= 1000pF
C
BYP
= 100pF
C
BYP
= 0.01µF
C
BYP
(pF)
10
OUTPUT NOISE (µV
RMS
)
160
140
120
100
80
60
40
20
0
100 1k 10k
3027 G26
V
OUT
SET FOR 5V
V
OUT
=V
ADJ
C
OUT
= 10µF
I
L
= 100mA
f = 10Hz TO 100kHz
Channel-to-Channel Isolation
Channel-to-Channel Isolation