 English |
|
|
|
|
|
|
|
| LTC3615-1_15 Datasheet, PDF (8/32 Pages) Linear Technology – Dual 4MHz, 3A Synchronous Step-Down DC/DC Converter | |||
| |||
| ◁ |
LTC3615/LTC3615-1
Typical Performance Characteristics VIN = 3.3V, RT/SYNC = SVIN, unless otherwise noted.
Switch Leakage vs Temperature
4.0
3.5
3.0
2.5
SYNCHRONOUS SWITCH
2.0
1.5
1.0
0.5
MAIN SWITCH
0
â60 â25 10 45 80 115 150
TEMPERATURE (°C)
3615 G25
No Load Supply Current
vs Input Voltage
180
MODE = 0V
160 RUNx = ITHx = SVIN
140
120
100
80
60
40
20
0
2.25 2.75 3.25 3.75 4.25 4.75 5.25
VIN (V)
3615 G26
No Load Supply Current
vs Temperature
180
160
140
120
100
80
60
40
20 MODE = 0V
0 RUNx = ITHx = SVIN
â60 â25 10 45 80
TEMPERATURE (°C)
115 150
3615 G27
Slew Rate of Falling Edge at
SW1/2 vs SRLIM Resistor
VIN = 3.3V
VOUT = 1.8V
IOUT = 1A
SRLIM =
SGND OR SVIN
100k
40.2k
1V/DIV
OPEN
Slew Rate of Rising Edge at
SW1/2 vs SRLIM Resistor
VIN = 3.3V
VOUT = 1.8V
IOUT = 1A
SRLIM =
SGND OR SVIN
1V/DIV
40.2k
100k
OPEN
Sinking Current
VOUT
20mV/DIV
SW
2V/DIV
IL
500mA/DIV
VOUT = 1.2V
IOUT = â1A
VMODE = 1.5V
1µs/DIV
3615 G30
2ns/DIV
3615 G28
2ns/DIV
3615 G29
Tracking Up/Down in
Forced Continuous Mode,
SRLIM Pin Tied to 0V
VOUT1
1V/DIV
VTRACK/SS
500mV/DIV
PGOOD
2V/DIV
2ms/DIV
VOUT = 0V TO 1.8V
IOUT = 3A
VTRACK/SS = 0V TO 0.7V
VMODE = 1.5V
VSRLIM = 0V
3615 G31
Tracking Up/Down in
Forced Continuous Mode,
SRLIM Pin Tied to SVIN
VOUT1
500mV/DIV
VTRACK/SS
200mV/DIV
PGOOD
2V/DIV
2ms/DIV
VOUT = 0V TO 1.2V
IOUT = 3A
VTRACK/SS = 0V TO 0.4V
VMODE = 1.5V
VSRLIM = 3.3V
3615 G32
3615fb
8
For more information www.linear.com/LTC3615
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese