Datasheet

LTC3616
7
3616fc
For more information www.linear.com/LTC3616
Tracking Up/Down in Forced
Continuous Mode, DDR Pin Tied
to SV
IN
Reference Voltage
vs Temperature
Switch On-Resistance
vs Input Voltage
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
TEMPERATURE (°C)
–60 –40
0.594
REFERENCE VOLTAGE (V)
0.596
0.600
0.602
0.604
0
40
60 160140
3616 G20
0.598
–20 20
80
100
120
0.606
INPUT VOLTAGE (V)
2.5
R
DS(0N)
(Ω)
0.05
4.5
3616 G21
0.04
0.02
0.03
0.01
0
3.0
3.5
4.0
5.0 5.5
MAIN SWITCH
SYNCHRONOUS SWITCH
RESISTOR ON RT/SYNC PIN (kΩ)
0
0
FREQUENCY (kHz)
500
1500
2000
2500
800
4500
3616 G23
1000
400
200
1000 1200
600 1400
3000
3500
4000
TEMPERATURE (°C)
–60 –40
–1.5
FREQUENCY VARIATION (%)
–1.0
1.0
0
40
60 160140
3616 G24
–0.5
0.5
0
–20 20
80
100
120
INPUT VOLTAGE (V)
2.25
–2.5
FREQUENCY VARIATION (%)
–2.0
–1.0
–0.5
0
1.0
3616 G25
–1.5
0.5
3.75
3.25
5.25
2.75
4.25 4.75
Typical perForMance characTerisTics
V
IN
= 3.3V, RT/SYNC = SV
IN
unless otherwise noted.
TEMPERATURE (°C)
–60 –40
0
R
DS(ON)
(Ω)
0.005
0.015
0.020
0.025
80
0.050
0.045
3616 G22
0.010
20
0
120
60
–20
100
40 160140
0.030
0.035
0.040
SYNCHRONOUS SWITCH
MAIN SWITCH
TEMPERATURE (°C)
–60
SWITCH LEAKAGE (nA)
8000
10000
12000
140
3616 G27
6000
4000
0
90
–10
40
2000
14000
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5.5V
TEMPERATURE (°C)
–60
SWITCH LEAKAGE (nA)
8000
10000
12000
100
3616 G27
6000
4000
0
–20
20
60
–40 160
0
40
80
140
120
2000
16000
14000
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5.5V
V
OUT
500mV/DIV
V
TRACK/SS
200mV/DIV
PGOOD
2V/DIV
2ms/DIV
3616 G19
V
OUT
= 0V TO 1.2V
I
OUT
= 3A, V
TRACK/SS
= 0V TO 0.4V
V
MODE
= 1.5V, V
SRLIM/DDR
= 3.3V