LTC3601_15 Datasheet, PDF (5/26 Pages) Linear Technology – 1.5A, 15V Monolithic Synchronous Step-Down Regulator

LTC3601
TYPICAL PERFORMANCE CHARACTERISTICS
T_A = 25°C, V_IN = 12V, f_O = 1MHz, L = 2.2μH unless otherwise noted.
R_DS(ON) vs Temperature
200
160
TOP SWITCH
R_DS(ON)
120
BOTTOM SWITCH
80
R_DS(ON)
40
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3601 G07
Oscillator Frequency vs
Temperature
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3601 G10
Switch Leakage vs Temperature
6000
V_DS = 12V
5000
4000
3000
2000
1000
TOP SWITCH
BOTTOM SWITCH
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3601 G08
Oscillator Internal Set Frequency
vs Temperature
2.75
RT = INTV_CC
2.50
2.25
2.00
1.75
1.50
1.25
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3601 G22
Quiescent Current vs
Supply Voltage
380
340
300
260
220
4
6
8
10 12 14 16
SUPPLY VOLTAGE (V)
3601 G09
TRACK Pull-Up Current
vs Temperature
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3601 G23
Bottom Switch Current Limit
vs Temperature
3.5
3.0
Load Regulation
1.2
Burst Mode OPERATION
1.0
FORCED CONTINUOUS
2.5
0.8
2.0
0.6
1.5
0.4
1.0
0.2
0.5
0
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3601 G11
–0.2
0 250 500 750 1000 1250 1500
I_LOAD (mA)
3601 G21
3601fb
5