Datasheet

LTC3603
4
3603fc
For more information www.linear.com/LTC3603
typical perForMance characteristics
V
REF
vs Temperature
Switch On-Resistance
vs Input Voltage
Switch On-Resistance
vs Temperature
PV
IN
Leakage Current
vs Input Voltage Frequency vs R
OSC
Frequency vs Input Voltage
TEMPERATURE (°C)
–50
V
REF
(V)
0.6004
0.6006
25 75
0.6002
0.6000
–25 0
50 100 125
0.5998
0.5996
0.5994
V
IN
= 12V
3603 G03
INPUT VOLTAGE (V)
5
RESISTANCE (mΩ)
70
80
90
13
3603 G04
60
50
65
75
85
55
45
40
7
9
11
64 14
8
10
12
15
V
BOOST
– V
SW
= INTV
CC
TOP
BOTTOM
TEMPERATURE (°C)
–50
RESISTANCE (mΩ)
80
100
120
25 75
3603 G05
60
40
–25 0
50 100 125
20
0
V
IN
= 12V
TOP
BOTTOM
INPUT VOLTAGE (V)
5
INPUT CURRENT (nA)
30
40
50
13
3603 G06
20
10
25
35
45
15
5
0
7
9
11
64 14
8
10
12
15
V
RUN
= 0V
R
OSC
(kΩ)
0
2000
2500
3500
150 250
1500
1000
50 100
200 300 350
500
0
3000
FREQUENCY (kHz)
3603 G07
INPUT VOLTAGE (V)
FREQUENCY (kHz)
1010
1020
1030
3603 G08
990
4 5 6 7 8 9 10 11 12 13 14 15
1040
1000
980
970
960
R
OSC
= 105kΩ
Burst Mode Operation
Load Step Transient
Forced Continuous
OUTPUT
VOLTAGE
50mV/DIV
INDUCTOR
CURRENT
500mA/DIV
10µs/DIV
3603 G01
V
IN
= 12V
V
OUT
= 3.3V
LOAD = 50mA
OUTPUT
VOLTAGE
100mV/DIV
LOAD
CURRENT
1A/DIV
10µs/DIV
3603 G02
V
IN
= 12V
V
OUT
= 3.3V