LT1763 Series
TYPICAL PERFORMANCE CHARACTERISTICS
LT1763
Output Noise Spectral Density
CBYP = 0
Minimum Input Voltage
Load Regulation
5
0
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
10
1
LT1763-1.5
LT1763-2.5
LT1763
LT1763-3
LT1763-1.8
I
= 500mA
L
LT1763-3.3
LT1763-5
–5
I
= 1mA
L
LT1763-3
–10
–15
–20
–25
LT1763
LT1763-3.3
LT1763-5
LT1763-2.5
LT1763-1.8
LT1763-1.5
0.1
V
= V
+ 1V
IN
L
OUT(NOMINAL)
C
= 10μF
OUT
$I = 1mA TO 500mA
V
= 1.22V
OUT
I = 500mA
L
0.01
–50
0
25
50
75 100 125
–25
–25
0
25
50
75
125
–50
100
10
100
1k
FREQUENCY (Hz)
10k
100k
TEMPERATURE (°C)
TEMPERATURE (°C)
1763 G48
1763 G46
1763 G47
RMS Output Noise
vs Load Current (10Hz to 100kHz)
RMS Output Noise
vs Bypass Capacitor
Output Noise Spectral Density
10
1
160
140
120
100
80
160
C
I
= 10μF
C = 10μF
OUT
OUT
L
C
I
= 10μF
OUT
= 500mA
C
BYP
= 0
= 0.01μF
BYP
= 500mA
140
L
C
f = 10Hz TO 100kHz
C
= 1000pF
BYP
LT1763-5
120 LT1763-5
LT1763-5
LT1763-3.3
C
BYP
= 100pF
100
80
LT1763-3
LT1763
LT1763-2.5
60
60
LT1763
0.1
C
BYP
= 0.01μF
100
40
40
LT1763
LT1763-5
LT1763
LT1763-1.8
20
20
0
LT1763-1.5
0.01
0
0.01
10
1k
FREQUENCY (Hz)
10k
100k
0.1
1
10
100
1000
10
100
1000
(pF)
10000
LOAD CURRENT (mA)
C
BYP
1763 G49
1763 G51
1763 G50
LT1763-5
LT1763-5
10Hz to 100kHz Output Noise
CBYP = 100pF
LT1763-5
10Hz to 100kHz Output Noise
CBYP = 0
10Hz to 100kHz Output Noise
CBYP = 1000pF
V
V
OUT
OUT
V
OUT
100μV/DIV
100μV/DIV
100μV/DIV
1763 G53
1763 G54
1763 G52
1ms/DIV
1ms/DIV
1ms/DIV
C
I
= 10μF
C
= 10μF
OUT
C
I
= 10μF
OUT
L
OUT
L
= 500mA
I
= 500mA
L
= 500mA
1763fg
12
Linear [ Linear ]
