Datasheet

LTC1261L
4
1261lfa
TYPICAL PERFORMANCE CHARACTERISTICS
Output Voltage vs Supply Voltage
Minimum Required V
CC
vs V
OUT
and I
OUT
Maximum Output Current
vs Supply Voltage
Output Voltage vs Output Current Output Voltage vs Output Current Output Voltage vs Supply Voltage
(See Test Circuits)
OUTPUT CURRENT (mA)
0
–2.25
OUTPUT VOLTAGE (V)
–2.00
–1.50
–1.25
–1.00
20
0
1261L G01
–1.75
105 2515 30
–0.75
–0.50
–0.25
T
A
= 25°C
V
OUT
= –2V
V
CC
= 2.7V
V
CC
= 3V
OUTPUT CURRENT (mA)
0
OUTPUT VOLTAGE (V)
–3.0
–3.1
–3.2
–3.3
–3.4
–3.5
–3.6
–3.7
–3.8
–3.9
–4.0
–4.1
–4.2
5
10 15 20
1261L G02
25 30
T
A
= 25°C
V
OUT
= –4V
V
CC
= 4.5V
V
CC
= 5V
SUPPLY VOLTAGE (V)
2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT VOLTAGE (V)
–2.00
–1.95
1261L G03
–2.05
–2.10
–1.90
T
A
= –40°C
V
OUT
= –2V
T
A
= 85°C
T
A
= 25°C
SUPPLY VOLTAGE (V)
4.5
–4.15
OUTPUT VOLTAGE (V)
–4.10
–4.05
–4.00
–3.95
4.7 4.9
5.1
5.3
1261L G04
–3.90
–3.85
4.6 4.8
5.0
5.2
V
OUT
= –4V
T
A
= –40°C
T
A
= 85°C
T
A
= 25°C
OUTPUT VOLTAGE (V)
–5
2.0
POSITIVE SUPPLY VOLTAGE (V)
2.4
3.2
3.6
4.0
–2 –1
5.6
1261L G05
2.8
–4 –3 0
4.4
4.8
5.2
I
OUT
= 5mA I
OUT
= 10mA
I
OUT
= 20mA
SUPPLY VOLTAGE (V)
2.7
MAXIMUM OUTPUT CURRENT (mA)
40
50
60
5.1
1261L G06
30
20
0
3.3
3.9
4.5
3.0 5.4
3.6
4.2
4.8
10
80
70
T
A
= 25°C
V
OUT
= –2V
V
OUT
= –3V
V
OUT
= –4V
Supply Current vs Supply Voltage
Reference Voltage
vs Temperature
Supply Current vs Supply Voltage
SUPPLY VOLTAGE (V)
0
SUPPLY CURRENT (mA)
1.0
2.0
3.0
0.5
1.5
2.5
3.0 3.5 4.0 4.5
1261L G07
5.02.5
T
A
= –40°C
T
A
= 85°C
T
A
= 25°C
V
OUT
= –2V
I
OUT
= 0
SUPPLY VOLTAGE (V)
4.5
0
SUPPLY CURRENT (mA)
0.5
1.5
2.0
2.5
5.0
3.5
4.7
4.9
5.0
1261L G08
1.0
4.0
4.5
3.0
4.6 4.8
5.1
5.2
5.3
T
A
= 85°C
V
OUT
= –4.5V
I
OUT
= 0
T
A
= 25°C
T
A
= –40°C
TEMPERATURE (°C)
–55
1.21
REFERENCE VOLTAGE (V)
1.22
1.23
1.24
1.25
–35 –15 5 25
1261L G09
45 65 85 105 125
V
CC
= 5V
ADJ = 0V