Datasheet

LTC2953
6
2953f
V
IN
(V)
0
EN (V)
0.4
0.6
4
0.2
0
1
2
3
1.0
0.8
T
A
= 25°C
100k PULL-UP FROM EN TO V
IN
V
IN
(V)
0
EN (V)
2
3
4
2953 G11
1
0
1
2
3
4
T
A
= 25°C
100k PULL-UP FROM EN TO V
IN
V
IN
(V)
0
0
PFO (V)
1
2
3
4
0.5 1.0 1.5 2.0
2953 G12
2.5 3.0 3.5 4.0
T
A
= 25°C
PFI = 1V
100k PULL-UP FROM PFO TO V
IN
V
IN
(V)
0
0
RST (V)
1
2
3
4
0.5 1.0 1.5 2.0
2953 G13
2.5 3.0 3.5 4.0
T
A
= 25°C
VM = 1V
100k PULL-UP FROM RST TO V
IN
RST, INT CURRENT LOAD (mA)
0
0
RST, INT V
OL
(mV)
100
200
300
400
500
600
2468
2953 G14
10
T
A
= 25°C
V
IN
= 3.3V
TEMPERATURE (°C)
–50
496
THRESHOLD (mV)
498
500
502
504
–25 0 25 50
2953 G15
75 100
V
IN
= 3.3V
TYPICAL PERFORMANCE CHARACTERISTICS
EN (LTC2953-1) Voltage vs V
IN
⎯
E
⎯
N (LTC2953-2) Voltage vs V
IN
⎯
P
⎯
F
⎯
O Voltage vs V
IN
⎯
R
⎯
S
⎯
T Voltage vs V
IN
⎯
R
⎯
S
⎯
T,
⎯
I
⎯
N
⎯
T V
OL
vs Current Load
Threshold Voltage (VM,
⎯
P
⎯
F
⎯
I,
UVLO) vs Temperature
EN/EN, PFO CURRENT LOAD (mA)
0
EN/EN, PFO V
OL
(mV)
400
600
800
2.5
2953 G16
200
0
0.5
1 1.5
2
3
T
A
= 25°C
V
IN
= 3.3V
EN/
⎯
E
⎯
N,
⎯
P
⎯
F
⎯
O V
OL
vs Current Load