LT3028 LINER [Linear Technology], LT3028 Datasheet - Page 8

• Manufacturer Part Number: LT3028
• Description: Dual 100mA/500mA Low Dropout, Low Noise,Micropower Regulators with Independent Inputs
• Manufacturer: LINER [Linear Technology]

LT3028
TYPICAL PERFOR A CE CHARACTERISTICS
8
–10
140
120
100
100
–5
90
80
70
60
40
20
10
80
60
40
20
50
30
0
0
5
0
–50
10
10
RMS Output Noise
vs Bypass Capacitor
Channel-to-Channel Isolation
Output 1 Load Regulation
∆I
OUTPUT 1
OUTPUT 1
V
GIVEN CHANNEL IS TESTED
WITH 50mVRMS SIGNAL ON
OPPOSING CHANNEL, BOTH
CHANNELS DELIVERING FULL
CURRENT
T
V
J
OUT
L
OUT
= 25°C
–25
= 1mA TO 500mA
= 1.22V
100
= 5V
CHANNEL 1
OUTPUT 2
CHANNEL 2
0
TEMPERATURE (°C)
100
FREQUENCY (Hz)
OUTPUT 2
1k
C
25
BYP
C
I
f
T
L
BW
(pF)
J
OUT
50
= FULL LOAD
= 25°C
10k
= 10Hz TO 100kHz
= 10µF
1000
75
100k
W
100
3028 G39
3028 G34
3028 G36
10000
U
125
1M
20mV/DIV
20mV/DIV
V
V
OUT1
OUT2
0.01
160
140
120
100
0.1
80
60
40
20
10
0
1
0.01
0.01
Output 2
RMS Output Noise vs Load
Current (10Hz to 100kHz)
Channel-to-Channel Isolation
C
C
C
∆I
∆I
V
Output Noise Spectral Density
C
C
I
T
C
T
V
OUT1
OUT2
BYP1
IN
L
J
OUT
BYP
J
L1
L2
OUT2
OUT2
= FULL LOAD
= 25°C
= 25°C
= 6V, V
= 50mA TO 500mA
= 10mA TO 100mA
C
C
= 0
= 22µF
= 10µF
= C
= 10µF
V
BYP
BYP
= 10µF
OUT
SET FOR 5V
BYP2
V
0.1
0.1
OUT1
OUT
= 0
= 0.01µF
SET FOR 5V
LOAD CURRENT (mA)
FREQUENCY (kHz)
= 0.01µF
=V
= V
ADJ
50µs/DIV
OUT2
1
1
= 5V
V
OUT2
V
V
SET FOR 5V
OUT2
OUT2
10
10
=V
=V
3028 G40
ADJ2
ADJ2
3028 G37
3028 G50
100
100
0.01
–10
160
140
120
100
0.1
–1
–2
–3
–4
–5
–6
–7
–8
–9
80
60
40
20
10
0
0
1
0.01
–50
0.01
Output 2 Load Regulation
Output 1
RMS Output Noise vs Load
Current (10Hz to 100kHz)
Output Noise Spectral Density
V
∆I
V
C
T
OUT
OUT
J
OUT1
L
C
= 25°C
V
–25
= 1mA TO 100mA
BYP
C
C
OUT1
=V
SET FOR 5V
BYP
BYP
0.1
= 10µF
ADJ
= 0.01µF
0.1
SET FOR 5V
= 0
= 0.01µF
LOAD CURRENT (mA)
0
TEMPERATURE (°C)
FREQUENCY (kHz)
1
25
1
50
V
10
OUT1
C
V
V
C
I
T
C
OUT1
L
BYP
OUT1
75
OUT
J
BYP
= FULL LOAD
= 25°C
SET FOR 5V
10
= 1000pF
100
= 10µF
= 100pF
= V
= V
100
ADJ1
ADJ1
3028 G38
3028 G35
3028 G41
3028f
125
1000
100