Datasheet

6
LT1461
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Characteristic curves are similar for most LT1461s.
Curves from the LT1461-2.5 and the LT1461-5 represent the extremes of the voltage options. Characteristic curves for other output
voltages fall between these curves and can be estimated based on their output.
5V Reference Voltage
vs Temperature
5V Line Regulation
vs Temperature
5V Load Regulation
5V Ripple Rejection Ratio
vs Frequency
5V Minimum Input/Output Voltage
Differential vs Load Current
5V Supply Current
vs Input Voltage
TEMPERATURE (°C)
–60
REFERENCE VOLTAGE (V)
5.0040
5.0030
5.0020
5.0010
5.0000
4.9990
4.9980
4.9970
4.9960
4.9950
4.9940
4.9930
–20
20
40
1461 G13
–40
0
60 80 100
120
TEMPCO –60°C TO 120°C
3 TYPICAL PARTS
OUTPUT CURRENT (mA)
0.1
800
LOAD REGULATION (ppm)
1200
1600
1 10 100
1461 G14
400
0
2000
V
IN
= 10V
125°C
125°C
25°C
25°C
–55°C
–55°C
TEMPERATURE (
°C)
–40
LINE REGULATION (ppm/V)
–4
–2
120
1461 G15
–6
–8
0
40
80
–20
20
60
100
0
–5
–3
–7
–1
SUPPLY ∆ = 14V
6V TO 20V
OUTPUT CURRENT (mA)
0.1
0.01
INPUT/OUTPUT VOLTAGE (V)
0.1
1
10
1 10 100
1461 G16
125°C
–55°C
25°C
INPUT VOLTAGE (V)
10
SUPPLY CURRENT (µA)
100
1000
10000
0101520
1
5
25
1461 G17
125°C
–55°C
25°C
FREQUENCY (kHz)
0.01
40
RIPPLE REJECTION RATIO (dB)
50
60
70
80
0.1 1 10 100 1000
1461 G18
30
20
10
0
90
100
5V Output Impedance vs Frequency 5V Turn-On Time
FREQUENCY (kHz)
0.01
1
OUTPUT IMPEDANCE (Ω)
10
100
1000
0.1 1 10
1461 G19
C
OUT
= 2µF
C
OUT
= 1µF
200µs/DIV
V
IN
2V/DIV
6
4
2
0
4
2
0
1461 G20
V
OUT
C
IN
= 1µF
C
OUT
= 2µF
I
OUT
= 0
200µs/DIV
V
IN
2V/DIV
6
4
2
0
4
2
0
1461 G21
V
OUT
C
IN
= 1µF
C
OUT
= 2µF
I
OUT
= 50mA
5V Turn-On Time