LTC3616_15 Datasheet, PDF (7/28 Pages) Linear Technology – 6A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

LTC3616
Typical Performance Characteristics V_IN = 3.3V, RT/SYNC = SV_IN unless otherwise noted.
Tracking Up/Down in Forced
Continuous Mode, DDR Pin Tied
to SV_IN
Reference Voltage
vs Temperature
0.606
Switch On-Resistance
vs Input Voltage
0.05
V_OUT
500mV/DIV
V_TRACK/SS
200mV/DIV
PGOOD
2V/DIV
2ms/DIV
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
3616 G19
Switch On-Resistance
vs Temperature
0.050
0.045
0.040
0.035
MAIN SWITCH
0.030
0.025
0.020
0.015
SYNCHRONOUS SWITCH
0.010
0.005
0
–60 –40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3616 G22
0.604
0.602
0.600
0.598
0.596
0.594
–60 –40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3616 G20
Frequency vs Resistor on
RT/SYNC Pin
4500
4000
3500
3000
2500
2000
1500
1000
500
0
0 200 400 600 800 1000 1200 1400
RESISTOR ON RT/SYNC PIN (kΩ)
3616 G23
0.04
MAIN SWITCH
0.03
SYNCHRONOUS SWITCH
0.02
0.01
0
2.5
3.0 3.5 4.0 4.5
INPUT VOLTAGE (V)
5.0 5.5
3616 G21
Frequency vs Temperature
1.0
0.5
0
–0.5
–1.0
–1.5
–60 –40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3616 G24
Frequency vs Input Voltage
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
2.25 2.75 3.25 3.75 4.25 4.75 5.25
INPUT VOLTAGE (V)
3616 G25
Switch Leakage vs Temperature,
Main Switch
14000
12000
V_IN = 2.25V
V_IN = 3.3V
V_IN = 5.5V
10000
8000
6000
4000
2000
0
–60
–10
40
90
140
TEMPERATURE (°C)
3616 G27
Switch Leakage vs Temperature,
Synchronous Switch
16000
14000
12000
V_IN = 2.25V
V_IN = 3.3V
V_IN = 5.5V
10000
8000
6000
4000
2000
0
–60 –40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3616 G27
For more information www.linear.com/LTC3616
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