Datasheet

LTC2978A
13
2978afa
For more information www.linear.com/LTC2978A
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Supply Voltage
Supply Current vs Temperature
V
DD33
Regulator Short-Circuit
Current vs Temperature
V
OUT_EN[3:0]
and V
IN_EN
Output
High Voltage vs Load Current
V
DD33
Regulator Line Regulation
V
PWR
(V)
4.5
–500
∆V
DD33
(ppm)
–400
–200
–100
0
10.5
400
85°C
25°C
–40°C
2978a G26
–300
7.5
6
12 13.5
9 15
100
200
300
TEMPERATURE (°C)
–50
SHORT-CIRCUIT CURRENT (mA)
–86
–88
–90
–92
–94
–96
–98
–100
–102
70
2978a G27
–20 10 40
100
55–35 –5 25 85
V
DD33
(V)
3
SUPPLY CURRENT (mA)
10.0
10.1
10.2
3.3
3.5
2978a G28
9.9
9.8
3.1 3.2 3.4
10.3
10.4
10.5
3.6
V
PWR
= V
DD33
TEMPERATURE (°C)
–50
10.02
SUPPLY CURRENT (mA)
10.04
10.08
10.10
10.12
10.16
–35
25
55
2978a G29
10.06
10.14
10
85
100
–20
–5
40 70
V
PWR
= 12V
V
DD33
Regulator Output Voltage
vs Temperature
TEMPERATURE (°C)
–50
V
DD33
OUTPUT VOLTAGE (V)
3.275
3.270
3.265
3.260
3.255
3.250
3.245
3.240
3.235
70
2978a G25
–20 10 40
100
55–35 –5 25 85
CURRENT SOURCING (µA)
0
9.5
CHARGE PUMP OUTUPT HIGH VOLTAGE (V)
10.0
11.0
11.5
12.0
4
14.0
2978a G30
10.5
2
1
5 6
3
7
12.5
13.0
13.5
85°C
25°C
–40°C