Datasheet

LTC1798 Series
4
1798fc
TYPICAL PERFORMANCE CHARACTERISTICS
OUTPUT SOURCE CURRENT (mA)
DROPOUT VOLTAGE (mV)
100
90
80
70
60
50
40
30
20
10
0
0 1 10 100
1798 G01
0.1
T
A
= 25°C
TEMPERATURE (°C)
–50 –25
INPUT CURRENT (µA)
150
1798 G02
0 25
50 75
100 125
8
7
6
5
4
3
2
1
0
V
IN
= 2.7V
TEMPERATURE (°C)
–50 –25
OUTPUT SHORT-CIRCUIT CURRENT (mA)
150
1798 G03
0 25
50 75
100 125
70
60
50
40
30
20
10
5
0
T
A
= 25°C
V
IN
= V
OUT(NOM)
+ 0.2V
OUTPUT
SHORTED
TO V
IN
OUTPUT
SHORTED
TO GND
INPUT VOLTAGE (V)
2
OUTPUT SHORT-CIRCUIT CURRENT (mA)
25
20
15
10
5
0
4
6 8 10
1798 G04
12 14
T
A
= 25°C
OUTPUT SHORTED
TO V
IN
INPUT VOLTAGE (V)
2
OUTPUT SHORT-CIRCUIT CURRENT (mA)
42
41
4
6 8 10
1798 G05
12 14
T
A
= 25°C
OUTPUT SHORTED
TO GND
OUTPUT CURRENT (mA)
∆V
OUT
FROM NO LOAD (mV)
5
4
3
2
1
0
–1
–2
–3
–4
–5
0 1 10 100
1798 G06
0.1
T
A
= 25°C
V
IN
= V
OUT(NOM)
+ 0.2V
SINKING
SOURCING
INPUT VOLTAGE (V)
2
OUTPUT VOLTAGE (V)
2.5010
2.5005
2.5000
2.4995
4
6 8 10
1798 G07
12 14
T
A
= 25°C
INPUT VOLTAGE (V)
2
INPUT CURRENT (µA)
7
6
5
4
4
6 8 10
1798 G08
12 14
T
A
= 25°C
FREQUENCY (Hz)
POWER SUPPLY REJECTION RATIO (dB)
60
50
40
30
20
10
0
10 1k 10k
1798 G09
100
V
IN
= 2.7V
LTC1798-2.5* Output Short-Circuit
Current vs Input Voltage
LTC1798-2.5* Output Short-Circuit
Current vs Input Voltage
LTC1798 Series
Load Regulation
LTC1798-2.5*
Output Voltage vs Input Voltage
LTC1798-2.5*
Input Current vs Input Voltage
LTC1798-2.5
PSRR vs Frequency
LTC1798-2.5* Dropout Voltage
vs Output Source Current
LTC1798-2.5*
Input Current vs Temperature
LTC1798 Series Output Short-Circuit
Current vs Temperature