LTC3115-1
8
Rev. C
For more information
TYPICAL PERFORMANCE CHARACTERISTICS
V
CC
Regulator Dropout Voltage
vs Temperature
RUN Pin Threshold
vs Temperature
RUN Pin Hysteresis Current
vs Temperature
Oscillator Frequency vs R
T
Oscillator Frequency
vs Temperature
(T
A
= 25°C unless otherwise specified)
Power Switch Resistance
vs Temperature
Oscillator Frequency vs V
IN
RUN Pin Current
vs RUN Pin Voltage
Shutdown Current on V
IN
/PV
IN
vs Input Voltage
TEMPERATURE (°C)
–50
DROPOUT VOL
TAGE (V)
0.10
0.15
150
31151 G23
0.05
0
0
50
100
0.25
0.20
V
IN
= 4V
I
VCC
= 20mA
TEMPERATURE (°C)
–50
–1.0
CHANGE FROM 25°C (%)
–0.8
–0.4
–0.2
0
1.0
0.4
0
50
31151 G24
–0.6
0.6
0.8
0.2
100
150
TEMPERATURE (°C)
–50
CHANGE FROM 25°C (%)
0
0.5
1.0
150
31151 G25
–0.5
–1.0
–2.0
0
50
100
–1.5
2.0
1.5
R
T
(kΩ)
10
100
SWITCHING FREQUENCY (kHz)
1000
10000
100
1000
31151 G26
TEMPERATURE (°C)
–50
CHANGE FROM 25°C (%)
0
0.5
1.0
150
31151 G27
–0.5
–1.0
–2.0
0
50
100
–1.5
2.0
1.5
f
SW
= 1MHz
V
IN
(V)
2
–2.0
CHANGE FROM V
IN
= 24V (%)
–1.0
0
2.0
10
40
31151 G28
1.0
–1.5
–0.5
1.5
0.5
f
SW
= 1MHz
RUN PIN VOLTAGE (V)
0
CURRENT INTO RUN PIN (µA)
3
4
5
40
31151 G29
2
1
–1
10
20
30
0
7
V
IN
= 40V
6
INPUT VOLTAGE (V)
0
0
COMBINED V
IN
/PV
IN
CURRENT (µA)
0.5
1.0
1.5
2.0
2.5
3.0
V
RUN
= 0V
10
20
30
40
31151 G30
TEMPERATURE (°C)
–50
0
POWER SWITCH (A-D) RESIST
ANCE (mΩ)
50
100
150
200
250
300
0
50
100
150
31151 G31
