Datasheet

LT6654
7
6654fa
TYPICAL PERFORMANCE CHARACTERISTICS
2.5V Turn-On Characteristics 2.5V Line Transient Response
2.5V Load Transient Response
(Sourcing)
2.5V Hysteresis Plot for –40°C
and 125°C 2.5V Long Term Drift
2.5V Load Transient Response
(Sinking)
2.5V Integrated Noise
10Hz to 10kHz
2.5V Power Supply Rejection
Ratio vs Frequency
2.5V Output Impedance
vs Frequency
FREQUENCY (kHz)
0.01 0.1 1
0.1
1
10
INTEGRATED NOISE (µV
RMS
)
100
6654 G19
10
FREQUENCY (kHz)
0.1 1 10 100
–100
–90
–80
–70
–50
–40
–30
POWER SUPPLY REJECTION RATIO (dB)
–60
–20
6654 G20
1000
C
L
= 1µF
C
L
= 10µF
FREQUENCY (kHz)
1 10 100
0.1
1
10
OUTPUT IMPEDANCE (Ω)
100
6654 G21
1000
C
L
= 10µF
C
L
= 1µF
20µs/DIV
GND
GND
V
IN
1V/DIV
V
OUT
1V/DIV
6654 G22
C
LOAD
= 1µF
50µs/DIV
V
IN
0.5V/DIV
3V/DC
V
OUT
2mV/DIV/AC
2.5V/DC
6654 G23
C
LOAD
= 1µF
50µs/DIV
I
OUT
0mA
V
OUT
20mV/DIV/AC
2.5V/DC
6654 G24
C
LOAD
= 1µF
5mA
DISTRIBUTION (ppm)
–150
0
NUMBER OF UNITS
4
8
12
16
20
24
28
32
36
40
44
48
–100–125
–50–75
6654 G25
–25 0 25 100 125 15050 75
MAX AVG HOT CYCLE
25°C TO 125°C TO 25°C
MAX AVG COLD CYCLE
25°C TO –40°C TO 25°C
TIME (HOURS)
0 400 800 16001200
–150
–120
–90
–60
0
–30
120
OUTPUT VOLTAGE CHANGE (ppm)
150
60
30
90
6654 G26
2000
T
A
= 35°C
50µs/DIV
0mA
V
OUT
20mV/DIV/AC
2.5V/DC
6654 G27
C
LOAD
= 1µF
I
OUT
5mA
The characteristic curves are similar across the
LT6654 family. Curves from the LT6654-1.25, LT6654-2.5 and the LT6654-5 represent the full range of typical performance of all
voltage options. Characteristic curves for other output voltages fall between these curves and can be estimated based on their output.