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| LTC3703IGN Datasheet, PDF (3/34 Pages) Linear Integrated Systems – 100V Synchronous Switching Regulator | |||
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LTC3703
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = DRVCC = VBOOST = VIN = 10V, VMODE/SYNC = VINV = VSW =
BGRTN = 0V, RUN/SS = IMAX = open, RSET = 25k, unless otherwise specified.
SYMBOL
VCC, DRVCC
VIN
ICC
IDRVCC
IBOOST
PARAMETER
VCC, DRVCC Supply Voltage
VIN Pin Voltage
VCC Supply Current
DRVCC Supply Current
BOOST Supply Current
Main Control Loop
VFB
Feedback Voltage
CONDITIONS
VFB = 0V
RUN/SS = 0V
(Note 5)
RUN/SS = 0V
(Note 5) TJ ⤠125°C
TJ > 125°C
RUN/SS = 0V
(Note 4)
âVFB(LINE)
âVFB(LOAD)
VMODE/SYNC
âVMODE/SYNC
IMODE/SYNC
VINV
IINV
IVIN
Feedback Voltage Line Regulation
Feedback Voltage Load Regulation
MODE/SYNC Threshold
MODE/SYNC Hysteresis
MODE/SYNC Current
Invert Threshold
Invert Current
VIN Sense Input Current
IMAX
VOS(IMAX)
IMAX Source Current
VIMAX Offset Voltage
VRUN/SS
IRUN/SS
VUV
Shutdown Threshold
RUN/SS Source Current
Maximum RUN/SS Sink Current
Undervoltage Lockout
Oscillator
fOSC
fSYNC
tON(MIN)
DCMAX
Driver
Oscillator Frequency
External Sync Frequency Range
Minimum On-Time
Maximum Duty Cycle
IBG(PEAK)
BG Driver Peak Source Current
RBG(SINK)
BG Driver Pull-Down RDS(ON)
ITG(PEAK)
TG Driver Peak Source Current
RTG(SINK)
TG Driver Pull-Down RDS(ON)
Feedback Amplifier
AVOL
fU
IFB
ICOMP
Op Amp DC Open Loop Gain
Op Amp Unity Gain Crossover Frequency
FB Input Current
COMP Sink/Source Current
9V < VCC < 15V (Note 4)
1V < VCOMP < 2V (Note 4)
MODE/SYNC Rising
0 ⤠VMODE/SYNC ⤠15V
0 ⤠VINV ⤠15V
VIN = 100V
RUN/SS = 0V, VIN = 10V
VIMAX = 0V
|VSW| â VIMAX at IRUN/SS = 0µA
H Grade
RUN/SS = 0V
|VSW| â VIMAX ⥠200mV, VRUN/SS = 3V
VCC Rising
VCC Falling
RSET = 25k
f < 200kHz
(Note 8)
(Note 8)
(Note 4)
(Note 6)
0 ⤠VFB ⤠3V
MIN
TYP
MAX UNITS
l 9.3
15
V
l
100
V
l
1.7
2.5
mA
50
µA
0
5
µA
0
5
µA
l
360
500
µA
l
360
800
µA
0
5
µA
0.792 0.800 0.808
V
l 0.788
0.812
V
l
0.007 0.05
%/V
l
0.01
0.1
%
0.75
0.81
0.87
V
20
mV
0
1
µA
1
1.5
2
V
0
1
µA
100
140
µA
0
1
µA
10.5
12
13.5
µA
â25
10
55
mV
â25
10
65
mV
0.7
0.9
1.2
V
2.5
4
5.5
µA
9
17
25
µA
l 8.0
8.7
9.3
V
l 5.7
6.2
6.8
V
270
300
330
kHz
100
600
kHz
200
ns
89
93
96
%
1.5
2
A
1
1.5
Ω
1.5
2
A
1
1.5
Ω
74
85
dB
25
MHz
0
1
µA
±5
±10
mA
3703fc
3
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