Datasheet

LT6654
11
6654fd
For more information www.linear.com/LT6654
5V Minimum V
IN
to V
OUT
Differential (Sinking)
5V Output Voltage Noise
Spectrum
INPUT-OUTPUT VOLTAGE (mV)
–300 –250 –200 –150 –100 –50 0 50
0.1
OUTPUT CURRENT (mA)
1
10
6654 G35
100
25°C
–55°C
–40°C
125°C
FREQUENCY (kHz)
0.01 0.1 1 10
0
50
100
150
250
300
350
NOISE VOLTAGE (nV√Hz)
200
450
500
550
400
600
6654 G36
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.
pin FuncTions
DNC (Pins 1, 7): Do Not Connect. Keep leakage current
from this pin to V
IN
or GND to a minimum.
NC (Pin 2): Not internally connected. May be tied to V
IN
,
V
OUT
, GND or floated.
GND (Pin 3): Internal Function. This pin must be tied to
GND near Pin 4.
GND (Pin 4): Primary Device Ground. Pin 3 and the load
ground should be star-connected to Pin 4.
V
OUT
(Pin 5): V
OUT
Pin. An output capacitor of 1µF or
greater is required for stable operation.
V
OUT
(Pin 6): V
OUT
Pin. Tie to Pin 5 for proper load regu-
lation.
V
IN
(Pin 8): Power Supply. Bypass V
IN
with a 0.1µF, or
larger, capacitor to GND.
GND (Pin 1): Internal Function. This pin must be tied to
ground, near Pin 2.
GND (Pin 2): Primary Device Ground.
DNC (Pin 3): Do Not Connect. Keep leakage current from
this pin to V
IN
or GND to a minimum.
V
IN
(Pin 4): Power Supply. Bypass V
IN
with a 0.1µF
capacitor to ground.
DNC (
Pin 5): Do Not Connect. Keep leakage current from
this pin to V
IN
or GND to a minimum.
V
OUT
(Pin 6): Output Voltage. An output capacitor of 1µF
minimum is required for stable operation.
(LS8) (TSOT)
Typical perForMance characTerisTics