LT6657
Typical perForMance characTerisTics The test conditions are T = 25°C,
A
V = V
+ 0.5V, V
= 1.6V, I
= 0, C = 1µF, unless otherwise noted.
OUT
IN
OUT
SHDN
OUT
2.5V Minimum VIN to VOUT
Differential (Sinking)
2.5V Power Supply Rejection
2.5V Output Impedance vs
Frequency
Ratio vs Frequency
120
10
10
125°C
25°C
–40°C
–55°C
C
C
= 1µF
= 10µF
OUT
OUT
C
C
C
= 1µF
= 10µF
= 100µF
OUT
OUT
OUT
100
80
60
40
20
0
1
1
V
< V
OUT
IN
0.1
0.1
0.1
1
10
100
1000
1
10
100
1k
–300 –250 –200 –150 –100 –50
INPUT-OUTPUT VOLTAGE (mV)
0
50
FREQUENCY (kHz)
FREQUENCY (kHz)
6657 G11
6657 G12
6657 G10
Shutdown Pin Current vs
Shutdown Voltage
Supply and Ground Currents vs
Load Current
Shutdown Voltage Thresholds vs
Temperature
12
8
1.40
1.35
1.30
1.25
1.15
1.10
1.05
1.00
10
5
125°C
25°C
–40°C
–55°C
V
V
TH(RISING)
TH(FALLING)
0
4
SUPPLY PIN CURRENT
–5
0
–10
–15
–20
–25
–30
GROUND PIN CURRENT
–4
–8
–12
125°C
25°C
–40°C
–55°C
CURRENTS GOING INTO
THE PART ARE POSITIVE
–10
–5
0
5
10
–50
0
50
100
150
–10
0
10
20
30
40
LOAD CURRENT (mA)
TEMPERATURE (°C)
SHUTDOWN VOLTAGE (V)
6657 G13
6657 G14
6657 G15
5V Output Voltage Temperature
Drift
5V Low Frequency 0.1Hz to 10Hz
Noise
2.5V Supply Current in Shutdown
vs Input Voltage
5.0016
5.0008
5.0000
4.9992
4.9984
4.0
3.0
2.0
1.0
0.0
THREE TYPICAL PARTS
V
= 0.4V
125°C
25°C
SHDN
–40°C
–55°C
–50 –30 –10 10 30 50 70 90 110 130 150
0
20
INPUT VOLTAGE (V)
30
40
TEMPERATURE (°C)
TIME (1s/DIV)
6657 G17
6657 G16
6657 G18
6657fb
6
For more information www.linear.com/LT6657
Linear Systems [ Linear Systems ]
