Datasheet

LTC3614
7
3614fa
Frequency vs Input Voltage
Switch Leakage vs Temperature,
Main Switch
Switch Leakage vs Temperature,
Synchronous Switch
Switch On-Resistance
vs Temperature
Frequency vs Resistor on
RT/SYNC Pin
Frequency vs Temperature
Dynamic Supply Current vs Input
Voltage without AVP Mode
V
OUT
Short to GND,
Forced Continuous Mode
Dynamic Supply Current vs
Temperature without AVP Mode
RESISTOR ON RT/SYNC PIN (k)
0
0
FREQUENCY (kHz)
500
1500
2000
2500
800
4500
3614 G23
1000
400
200
1000 1200
600 1400
3000
3500
4000
TEMPERATURE (°C)
–50
–1.2
FREQUENCY VARIATION (%)
–1.0
–0.6
–0.4
–0.2
0.8
0.2
–10
30
50 130
3614 G24
–0.8
0.4
0.6
0
–30 10
70
90
100
INPUT VOLTAGE (V)
2.25
–2.5
FREQUENCY VARIATION (%)
–2.0
–1.0
–0.5
0
1.0
3614 G25
–1.5
0.5
3.75
3.25
5.25
2.75
4.25 4.75
INPUT VOLTAGE (V)
0.1
DYNAMIC SUPPLY CURRENT (mA)
1
10
100
2.25 3.25 3.75 4.25 4.75
0.01
2.75 5.25
3614 G28
FORCED CONTINUOUS MODE
PULSE-SKIPPING MODE
Burst Mode OPERATION
FREQ = 2.25MHz
TEMPERATURE (°C)
0.1
DYNAMIC SUPPLY CURRENT (mA)
1
10
100
–50 30 70 110 130
0.01
–10 10 50 90–30
3614 G29
FORCED CONTINUOUS MODE
PULSE-SKIPPING MODE
Burst Mode OPERATION
FREQ = 2.25MHz
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= 3.3V, RT/SYNC = SV
IN
unless otherwise noted.
TEMPERATURE (°C)
–50
0
R
DS(ON)
()
0.005
0.015
0.020
0.025
70
0.045
3614 G22
0.010
10
–10
110
50
–30
90
30 130
0.030
0.035
0.040
MAIN SWITCH
SYNCHRONOUS SWITCH
TEMPERATURE (°C)
–50
SWITCH LEAKAGE (nA)
4000
5000
6000
110
3614 G26
3000
2000
0
–10
30
70
–30 130
10
50
90
1000
8000
7000
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5.5V
TEMPERATURE (°C)
–50
SWITCH LEAKAGE (nA)
4000
5000
6000
110
3614 G27
3000
2000
0
–10
30
70
–30 130
10
50
90
1000
8000
7000
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5.5V
V
OUT
500mV/DIV
I
L
5A/DIV
100µs/DIV
3614 G30
V
OUT
= 1.8V
I
OUT
= 0A
V
MODE
= 1.5V