LTC3703
elecTrical characTerisTics
SYMBOL
V
CC
, DRV
CC
V
IN
I
CC
I
DRVCC
I
BOOST
PARAMETER
V
CC
, DRV
CC
Supply Voltage
V
IN
Pin Voltage
V
CC
Supply Current
DRV
CC
Supply Current
BOOST Supply Current
V
FB
= 0V
RUN/SS = 0V
(Note 5)
RUN/SS = 0V
(Note 5) T
J
≤ 125°C
T
J
> 125°C
RUN/SS = 0V
(Note 4)
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= DRV
CC
= V
BOOST
= V
IN
= 10V, V
MODE/SYNC
= V
INV
= V
SW
=
BGRTN = 0V, RUN/SS = I
MAX
= open, R
SET
= 25k, unless otherwise specified.
CONDITIONS
l
l
l
MIN
9.3
TYP
MAX
15
100
UNITS
V
V
mA
µA
µA
µA
µA
µA
µA
V
V
%/V
%
V
mV
µA
V
µA
µA
µA
µA
mV
mV
V
µA
µA
V
V
kHz
kHz
ns
%
A
1.7
50
0
0
360
360
0
0.792
0.788
0.800
0.007
0.01
0.75
0.81
20
0
1
1.5
0
100
0
10.5
–25
–25
0.7
2.5
9
12
10
10
0.9
4
17
8.7
6.2
300
200
2.5
5
5
500
800
5
0.808
0.812
0.05
0.1
0.87
1
2
1
140
1
13.5
55
65
1.2
5.5
25
9.3
6.8
330
600
Main Control Loop
V
FB
∆V
FB(LINE)
∆V
FB(LOAD)
V
MODE/SYNC
∆V
MODE/SYNC
I
MODE/SYNC
V
INV
I
INV
I
VIN
I
MAX
V
OS(IMAX)
V
RUN/SS
I
RUN/SS
V
UV
Oscillator
f
OSC
f
SYNC
t
ON(MIN)
DC
MAX
Driver
I
BG(PEAK)
R
BG(SINK)
I
TG(PEAK)
R
TG(SINK)
A
VOL
f
U
I
FB
I
COMP
BG Driver Peak Source Current
BG Driver Pull-Down R
DS(ON)
TG Driver Peak Source Current
TG Driver Pull-Down R
DS(ON)
Op Amp DC Open Loop Gain
Op Amp Unity Gain Crossover Frequency
FB Input Current
COMP Sink/Source Current
(Note 8)
(Note 4)
(Note 6)
0 ≤ V
FB
≤ 3V
±5
74
(Note 8)
1.5
1.5
2
1
2
1
85
25
0
±10
1
1.5
1.5
Ω
A
Ω
dB
MHz
µA
mA
3703fc
Feedback Voltage
Feedback Voltage Line Regulation
Feedback Voltage Load Regulation
MODE/SYNC Threshold
MODE/SYNC Hysteresis
MODE/SYNC Current
Invert Threshold
Invert Current
V
IN
Sense Input Current
I
MAX
Source Current
V
IMAX
Offset Voltage
Shutdown Threshold
RUN/SS Source Current
Maximum RUN/SS Sink Current
Undervoltage Lockout
9V < V
CC
< 15V (Note 4)
1V < V
COMP
< 2V (Note 4)
MODE/SYNC Rising
0 ≤ V
MODE/SYNC
≤ 15V
0 ≤ V
INV
≤ 15V
V
IN
= 100V
RUN/SS = 0V, V
IN
= 10V
V
IMAX
= 0V
|V
SW
| – V
IMAX
at I
RUN/SS
= 0µA
H Grade
RUN/SS = 0V
|V
SW
| – V
IMAX
≥ 200mV, V
RUN/SS
= 3V
V
CC
Rising
V
CC
Falling
R
SET
= 25k
l
l
l
l
8.0
5.7
270
100
Oscillator Frequency
External Sync Frequency Range
Minimum On-Time
Maximum Duty Cycle
f < 200kHz
89
93
96
Feedback Amplifier
3
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
