Datasheet

LTC3411A
5
3411afc
For more information www.linear.com/LTC3411A
Frequency Variation vs V
IN
R
DS(ON)
vs Input Voltage R
DS(ON)
vs Temperature
V
IN
(V)
6
4
2
0
–2
–4
–6
–8
3411A G10
2.5 4.0 5.0
5.5
3.0 3.5
4.5
FREQUENCY VARIATION (%)
INPUT VOLTAGE (V)
0.25
0.20
0.15
0.10
0.05
0.0
3411A G11
2.5 4.0 5.0 5.5
3.0 3.5
4.5
R
DS(ON)
(Ω)
MAIN SWITCH
SYNCHRONOUS SWITCH
TEMPERATURE (°C)
0.30
0.25
0.20
0.15
0.10
0.05
0.0
3411A G12
–50 25 75 100 125
–25 0
50
R
DS(ON)
(Ω)
MAIN SWITCH
SYNCHRONOUS SWITCH
Typical perForMance characTerisTics
T
A
= 25°C, V
IN
= 3.6V, f
O
= 1MHz, unless
otherwise noted.
Dynamic Supply Current vs Input
Voltage
Dynamic Supply Current vs
Temperature
V
IN
(V)
0.001
3.0 3.5 4.0 4.5 5.0 5.52.5
DYNAMIC SUPPLY CURRENT (mA)
0.1
100
3411A G13
0.01
1
10
FORCED CONTINUOUS
PULSE SKIP
Burst Mode
OPERATION
V
OUT
= 1.8V
I
LOAD
= 0A
TEMPERATURE (°C)
0.001
–25 0 25 50 75 100 125–50
DYNAMIC SUPPLY CURRENT (mA)
0.1
100
3411A G14
0.01
1
10
FORCED CONTINUOUS
PULSE SKIP
Burst Mode
OPERATION
V
OUT
= 1.8V
I
LOAD
= 0A
INPUT VOLTAGE(V)
2500
2000
1500
1000
500
0
3411A G15
0 3 5 6
1 2
4
SWITCH LEAKAGE (pA)
SYNCHRONOUS SWITCH
MAIN SWITCH
TEMPERATURE (°C)
600
500
400
300
200
100
0
3411A G16
–50 25 75 100 125
–25 0
50
SWITCH LEAKAGE (nA)
MAIN SWITCH
SYNCHRONOUS SWITCH
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 50mA
SW
2V/DIV
V
OUT
50mV/DIV
AC COUPLED
I
L
200mA/DIV
3411A G17
4µs/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 5mA
SW
2V/DIV
V
OUT
50mV/DIV
AC COUPLED
I
L
200mA/DIV
3411A G18
4µs/DIV
Switch Leakage vs Input Voltage
Switch Leakage vs Temperature
Burst Mode Operation Pulse Skippng Mode