Datasheet

LTC3601
5
3601fb
TYPICAL PERFORMANCE CHARACTERISTICS
Quiescent Current vs
Supply Voltage
Oscillator Frequency vs
Temperature
R
DS(ON)
vs Temperature Switch Leakage vs Temperature
T
A
= 25°C, V
IN
= 12V, f
O
= 1MHz, L = 2.2μH unless otherwise noted.
TEMPERATURE (°C)
–50 –25
0
R
DS(ON)
(m)
80
200
0
50
75
3601 G07
40
160
120
25
100
125
TOP SWITCH
R
DS(ON)
BOTTOM SWITCH
R
DS(ON)
TEMPERATURE (°C)
–50
SWITCH LEAKAGE (nA)
4000
5000
6000
25 75
3601 G08
3000
2000
–25 0
50 100 125
1000
0
TOP SWITCH
BOTTOM SWITCH
V
DS
= 12V
SUPPLY VOLTAGE (V)
4
220
QUIESCENT CURRENT (µA)
260
300
340
380
6 8 10 12
3601 G09
14 16
TEMPERATURE (°C)
–50
FREQUENCY VARIATION (%)
1.5
25
3601 G10
0
–1.0
–25 0 50
–1.5
–2.0
2.0
1.0
0.5
–0.5
75 100 125
Bottom Switch Current Limit
vs Temperature
Load Regulation
TEMPERATURE (°C)
–50
2.0
2.5
3.5
25 75
3601 G11
1.5
1.0
–25 0
50 100 125
0.5
0
3.0
I
LIM
(A)
I
LOAD
(mA)
0
1.2
1.0
0.8
0.6
0.4
0.2
0
–0.2
750 1250
3601 G21
250 500
1000 1500
∆V
OUT
/V
OUT
(%)
Burst Mode OPERATION
FORCED CONTINUOUS
Oscillator Internal Set Frequency
vs Temperature
TRACK Pull-Up Current
vs Temperature
TEMPERATURE (°C)
–50
FREQUENCY (MHz)
2.25
2.50
2.75
25 75
3601 G22
2.00
1.75
–25 0
50 100 125
1.50
1.25
RT = INTV
CC
TEMPERATURE (°C)
–50
1.4
1.6
2.0
25 75
3601 G23
1.2
1.0
–25 0
50 100 125
0.8
0.6
1.8
I
TRACK
(µA)