LT6657
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. The test conditions are VIN = VOUT + 0.5V, VSHDN = 1.6V, IOUT = 0,
COUT = 1µF, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Output Voltage ꢀccuracy
–0.1
0
0.1
%
l
l
Output Voltage Temperature Coefficient
(Note 4)
LT6657ꢀ
LT6657B
0.5
1
1.5
3
ppm/°C
ppm/°C
Line Regulation (Note 5)
V
+ 0.5V ≤ V ≤ 40V
0.2
0.7
0.9
0.9
2
4
ppm/V
ppm/V
OUT
OUT
OUT
IN
l
l
Load Regulation (Note 5)
I
I
(Source) = 10mꢀ
(Sink) = 10mꢀ
2
4
ppm/mꢀ
ppm/mꢀ
3
6
ppm/mꢀ
ppm/mꢀ
l
l
Shunt Configuration
6
ppm/mꢀ
V
Is Shorted to V
OUT
IN
I
2.5 to 11mꢀ
SHUNT
Minimum V – V
V
– V
OUT
,
I
I
I
I
= 0mꢀ
20
65
50
70
mV
mV
IN
OUT
IN
OUT
OUT
OUT
OUT
OUT
l
l
l
l
ΔV
= 0.1%
(Source) = 1mꢀ
(Source) = 10mꢀ
(Sink) = 10mꢀ
100
140
mV
mV
330
–230
450
500
mV
mV
–150
–50
mV
mV
l
l
Shutdown Pin (SHDN)
Logic High Input Voltage
Logic High Input Current, SHDN = 1.6V
1.6
V
µꢀ
0.7
2
l
l
Logic Low Input Voltage
0.8
1
V
Logic Low Input Current, SHDN = 0.8V
0.2
0.01
2.0
µꢀ
l
l
Supply Current in Shutdown
SHDN = 0.4V
SHDN = 0.8V
No Load
4
µꢀ
µꢀ
20
Supply Current
1.2
1.8
2.3
mꢀ
mꢀ
l
Output Short-Circuit Current
Output Voltage Noise (Note 6)
Short V
Short V
to GND
15
16
mꢀ
mꢀ
OUT
OUT
to V
IN
0.1Hz ≤ f ≤ 10Hz
10Hz ≤ f ≤ 1kHz
0.5
0.8
ppm
P-P
ppm
RMS
Turn-On Time
0.1% Settling, C = 1µF
180
30
µsec
L
Long-Term Drift of Output Voltage (Note 7)
Hysteresis (Note 8)
ppm/√kHr
ΔT = 0°C to 50°C
ΔT = 0°C to 70°C
ΔT = –40°C to 85°C
ΔT = –40°C to 125°C
ΔT = –55°C to 125°C
20
24
30
35
40
ppm
ppm
ppm
ppm
ppm
Note 1: Stresses beyond those listed under ꢀbsolute Maximum Ratings
may cause permanent damage to the device. Exposure to any ꢀbsolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 3: The stated temperature is typical for soldering of the leads during
manual rework. For detailed IR reflow recommendations, refer to the
ꢀpplication information section.
Note 4: Temperature coefficient is measured by dividing the maximum
Note 2: With V at 40V, V
may not be pulled below 0V. The total V to
change in output voltage by the specified temperature range.
IN
OUT
IN
V
differential voltage must not exceed 40V.
OUT
6657fb
3
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Linear Systems [ Linear Systems ]
