LTC1735
TYPICAL PERFOR A CE CHARACTERISTICS
SENSE Pins Total Source Current
100
2.0
50
V
IN
= 10V
V
OUT
= 3.3V
R
SENSE
= 0.01Ω
f
O
= 300kHz
CONTINUOUS
MODE
SYNCHRONIZED f = f
O
AVERAGE OUTPUT CURRENT I
OUT
/I
MAX
(%)
I
TH
VOLTAGE (V)
I
SENSE
(µA)
0
–50
–100
0
2
4
V
SENSE
COMMON MODE VOLTAGE (V)
1735 G16
Oscillator Frequency
vs Temperature
300
C
OSC
= 47pF
0
290
RUN/SS CURRENT (µA)
280
–2
FCB CURRENT (µA)
FREQUENCY (kHz)
270
260
250
–40
–15
60
35
10
85
TEMPERATURE (°C)
Supply Current in Shutdown
vs V
RUN/SS
100
90
80
SUPPLY CURRENT (µA)
25
30
70
60
50
40
30
20
10
0
0
0.5
1
V
RUN/SS
1735 G28
SUPPLY CURRENT (µA)
6
U W
6
110
1735 G19
I
TH
Voltage vs Load Current
2.5
100
Output Current vs Duty Cycle
I
OUT
/I
MAX
(SYNC)
I
OUT
/I
MAX
(FREE RUN)
80
1.5
60
1.0
Burst Mode
OPERATION
40
0.5
20
f
SYNC
= f
O
0
0
20
40
60
DUTY CYCLE (%)
80
100
1735 G14
0
0
1
2
3
4
LOAD CURRENT (A)
5
6
1735 G17
RUN/SS Pin Current
vs Temperature
V
RUN/SS
= 0V
0
FCB Pin Current vs Temperature
V
FCB
= 0.85V
–1
–0.2
–0.4
–3
–0.6
–4
–0.8
135
–5
–40
–15
60
35
10
85
TEMPERATURE (°C)
110
135
–1.0
–40
–15
60
35
10
85
TEMPERATURE (°C)
110
135
1735 G20
1735 G21
Supply Current in Shutdown
vs Temperature
20
15
10
5
0
–50
1.5
2
0
50
100
TEMPERATURE (°C)
150
1735 G29
1735fc
LINER [ LINEAR TECHNOLOGY ]
