LTC3612_15 Datasheet, PDF (8/30 Pages) Linear Technology – 3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

LTC3612
Typical Performance Characteristics V_IN = 3.3V, RT/SYNC = SV_IN, unless otherwise noted.
8
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)
3612 G23
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)
3612 G25
Switch Leakage vs Temperature,
Synchronous Switch
7000
6000
V_IN = 2.25V
V_IN = 3.3V
V_IN = 5.5V
5000
4000
3000
2000
1000
0
–60 –40 –20 0 20 40 60 80 110 150
TEMPERATURE (°C)
3612 G27
Frequency vs Temperature
1.0
0.5
0
–0.5
–1.0
–1.5
–60 –50 –30 –10 10 30 50 70 90 110 130 150
TEMPERATURE (°C)
3612 G24
Switch Leakage vs Temperature,
Main Switch
7000
6000
V_IN = 2.25V
V_IN = 3.3V
V_IN = 5.5V
5000
4000
3000
2000
1000
0
–50 –30 –10 10 30 50 70 90 110 150
TEMPERATURE (°C)
3612 G26
Dynamic Supply Current vs Input
Voltage without AVP Mode
100
FORCED CONTINUOUS MODE
10
PULSE-SKIPPING MODE
1
Burst Mode OPERATION
0.1
0.01
2.25 2.75 3.25 3.75 4.25 4.75 5.25
INPUT VOLTAGE (V)
3612 G28
For more information www.linear.com/LTC3612
3612fc