Datasheet

LT6654
7
6654fd
For more information www.linear.com/LT6654
Typical perForMance characTerisTics
1.25V Load Regulation (Sourcing) 1.25V Load Regulation (Sinking) 1.25V Output Noise 0.1Hz to 10Hz
1.25V Minimum Input Voltage
(Sourcing)
1.25V Minimum Input Voltage
(Sinking)
1.2V Output Voltage Noise
Spectrum
1.25V Output Voltage
Temperature Drift 1.25V Turn-On Characteristics
1.25V Output Impedance
vs Frequency
TEMPERATURE (°C)
–60
1.2485
1.2490
1.2495
REFERENCE VOLTAGE (V)
1.2500
1.2505
1.2510
1.2515
1.2520
–40 –20 0
6654 G01
20 40 60 80 140100 120
THREE TYPICAL PARTS
OUTPUT CURRENT (mA)
0.1
–50
–40
OUTPUT VOLTAGE CHANGE (ppm)
–30
–20
–10
0
30
20
10
1
6654 G04
10
–40°C
25°C
125°C
–55°C
OUTPUT CURRENT (mA)
0.1
0
OUTPUT VOLTAGE CHANGE (ppm)
40
80
20
60
100
140
160
180
120
200
1
6654 G05
10
125°C
–40°C
–55°C
25°C
OUTPUT NOISE (1µV/DIV)
TIME (1s/DIV)
6654 G06
109876543210
MINIMUM INPUT VOLTAGE (V)
1 1.2 1.4 1.6 1.8 2 2.2
0.1
OUTPUT CURRENT (mA)
1
10
6654 G07
2.4
25°C
–40°C
–55°C
125°C
MINIMUM INPUT VOLTAGE (V)
1 1.1 1.2 1.3 1.4 1.5 1.6 1.7
0.1
OUTPUT CURRENT (mA)
1
10
6654 G08
1.8
–40°C
–55°C
125°C
25°C
FREQUENCY (kHz)
0.01 0.1 1 10
0
50
100
150
250
300
350
NOISE VOLTAGE (nV√Hz)
200
400
6654 G09
100
I
O
= 5mA
I
O
= 0µA
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.
20µs/DIV
GND
GND
V
IN
1V/DIV
V
OUT
0.5V/DIV
6654 G02
C
LOAD
= 1µF
FREQUENCY (kHz)
0.1
0.01
OUTPUT IMPEDANCE (Ω)
0.1
10
1
100
1 10 100
6654 G03
1000
C
L
= 1µF
C
L
= 10µF