LTC3703IGN-5 Linear Technology, LTC3703IGN-5 Datasheet - Page 3

• Manufacturer Part Number: LTC3703IGN-5
• Description: IC,SMPS CONTROLLER,VOLTAGE-MODE,CMOS,SSOP,16PIN,PLASTIC
• Manufacturer: Linear Technology

SYMBOL
∆V
∆V
V
∆V
I
V
I
I
I
V
V
I
V
Oscillator
f
f
t
DC
Driver
I
R
I
R
Feedback Amplifier
A
f
I
I
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
BGRTN = 0V, RUN/SS = I
Note 1: Stresses beyond those listed under Absolute Maximum Ratings may
cause permanent damage to the device. Exposure to any Absolute Maximum
Rating condition for extended periods may affect device reliability and lifetime.
Note 2: The LTC3703E is guaranteed to meet performance specifications from
0°C to 85°C. Specifications over the –40°C to 85°C operating temperature
range are assured by design, characterization and correlation with statistical
process controls. The LTC3703I is guaranteed over the full –40°C to 125°C
operating junction temperature range. The LTC3703H is guaranteed over the
full –40°C to 150°C operating junction temperature range.
Note 3: T
dissipation P
MODE/SYNC
INV
VIN
MAX
RUN/SS
OSC
SYNC
ON, MIN
BG, PEAK
TG, PEAK
U
FB
COMP
MODE/SYNC
INV
OS, IMAX
RUN/SS
UV
VOL
BG, SINK
TG, SINK
FB, LINE
FB, LOAD
MODE/SYNC
MAX
LTC3703: T
J
is calculated from the ambient temperature T
D
according to the following formula:
J
= T
A
PARAMETER
Feedback Voltage Line Regulation
Feedback Voltage Load Regulation
MODE/SYNC Threshold
MODE/SYNC Hysteresis
MODE/SYNC Current
Invert Threshold
Invert Current
V
I
V
Shutdown Threshold
RUN/SS Source Current
Maximum RUN/SS Sink Current
Undervoltage Lockout
Oscillator Frequency
External Sync Frequency Range
Minimum On-Time
Maximum Duty Cycle
BG Driver Peak Source Current
BG Driver Pull-Down R
TG Driver Peak Source Current
TG Driver Pull-Down R
Op Amp DC Open Loop Gain
Op Amp Unity Gain Crossover Frequency (Note 6)
FB Input Current
COMP Sink/Source Current
+ (P
MAX
IN
IMAX
Sense Input Current
D
Source Current
• 100 °C/W) G Package
Offset Voltage
MAX
= open, R
SET
DS, ON
DS, ON
= 25k, unless otherwise specified.
A
and power
A
= 25°C. V
CONDITIONS
9V < V
1V < V
MODE/SYNC Rising
0 ≤ V
0 ≤ V
V
RUN/SS = 0V, V
V
|V
T
RUN/SS = 0V
|V
V
V
R
f < 200kHz
(Note 8)
(Note 8)
(Note 4)
0 ≤ V
J
IN
IMAX
CC
CC
SET
SW
SW
The
> 125°C
= 100V
Rising
Falling
| – V
| – V
MODE/SYNC
INV
= 25kΩ
FB
= 0V
CC
COMP
●
≤ 3V
CC
≤ 15V
< 15V (Note 4)
IMAX
IMAX
denotes the specifications which apply over the full operating
= DRV
< 2V (Note 4)
at I
> 100mV
Note 4: The LTC3703 is tested in a feedback loop that servos V
reference voltage with the COMP pin forced to a voltage between 1V and 2V.
Note 5: The dynamic input supply current is higher due to the power MOSFET
gate charge being delivered at the switching frequency (Q
Note 6: Guaranteed by design. Not subject to test.
Note 7: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 8: R
Note 9: High junction temperatures degrade operating lifetimes. Operating
lifetime at junction temperatures greater than 125°C is derated to 1000 hours.
≤ 15V
IN
RUN/SS
= 10V
CC
= V
= 0µA, T
DS(ON)
BOOST
guaranteed by correlation to wafer level measurement.
= V
J
≤ 125°C
IN
= 10V, V
●
●
●
●
MODE/SYNC
MIN
10.5
– 25
0.75
–25
270
100
2.5
8.0
5.7
1.5
1.5
0.7
89
74
±5
9
1
= V
0.007
0.01
TYP
100
300
200
±10
0.8
1.5
0.9
8.7
6.2
20
10
10
17
93
85
25
12
0
0
4
2
1
2
1
0
INV
0
LTC3703
= V
G
• f
SW
MAX
0.05
0.87
13.5
OSC
140
330
600
0.1
1.2
5.5
9.3
6.8
1.5
1.5
55
65
25
96
1
2
1
1
1
=
FB
).
to the
UNITS
3703fa
3
MHz
%/V
kHz
kHz
mV
mV
mV
mA
µA
µA
µA
µA
µA
µA
µA
dB
µA
ns
%
%
Ω
Ω
V
V
V
V
V
A
A