Datasheet

LT3023
6
3023fa
TYPICAL PERFORMANCE CHARACTERISTICS
Input Ripple Rejection Input Ripple Rejection Channel-to-Channel Isolation
Channel-to-Channel Isolation Minimum Input Voltage Load Regulation
Output Noise Spectral Density Output Noise Spectral Density
RMS Output Noise vs
Bypass Capacitor
FREQUENCY (kHz)
RIPPLE REJECTION (dB)
80
70
60
50
40
30
20
10
0
0.01 1 10 1000
3023 G19
0.1 100
I
L
= 100mA
V
IN
= 2.3V + 50mV
RMS
RIPPLE
C
OUT
= 10μF
C
BYP
= 0.01μF
C
BYP
= 1000pF
C
BYP
= 100pF
TEMPERATURE (°C)
–50
RIPPLE REJECTION (dB)
100
3023 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
50μs/DIV
C
OUT1
, C
OUT2
= 10μF
C
BYP1
, C
BYP2
= 0.01μF
ΔI
L1
= 10mA to 100mA
ΔI
L2
= 10mA to 100mA
V
IN
= 6V, V
OUT1
= V
OUT2
= 5V
V
OUT1
20mV/DIV
V
OUT2
20mV/DIV
3023 G21a
FREQUENCY (kHz)
CHANNEL-TO-CHANNEL ISOLATION (dB)
100
90
80
70
60
50
40
30
20
10
0
0.01 1 10 1000
3023 G21b
0.1 100
I
LOAD
= 100mA PER CHANNEL
TEMPERATURE (°C)
–50
MINIMUM INPUT VOLTAGE (V)
2.5
2.0
1.5
1.0
0.5
0
0
50
75
3023 G22
–25
25
100
125
I
L
= 100mA
I
L
= 50mA
TEMPERATURE (°C)
–50
LOAD REGULATION (mV)
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
05075
3023 G23
–25 25 100 125
Δ
IL
= 1mA TO 100mA
FREQUENCY (kHz)
OUTPUT NOISE SPECTRAL DENSITY (μV/√Hz)
0.01 1 10 100
3023 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
3023 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
3023 G26
V
OUT
SET FOR 5V
V
OUT
=V
ADJ
C
OUT
= 10μF
I
L
= 100mA
f = 10Hz TO 100kHz