LTC3537EUD データシートの表示（PDF） - Linear Technology
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LTC3537EUD Datasheet PDF : 22 Pages
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LTC3537
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2) VINB = 1.2V, VOUTB = 3.3V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
RNMOS
RPMOS
ILIM
tLIMDELAY
NMOS Switch On Resistance
PMOS Switch On Resistance
NMOS Current Limit
Current Limit Delay Time to
Output
VOUTB = 1.8V
VOUTB = 3.3V
VOUTB = 5V
VOUTB = 1.8V
VOUTB = 3.3V
VOUTB = 5V
(Note 4)
(Note 3)
0.8
Ω
0.4
Ω
0.3
Ω
1
Ω
0.6
Ω
0.4
Ω
l 600
750
mA
40
ns
fSW
VENBSTH
VENBSTL
IENBSTIN
VMODEH
VMODEL
IMODEIN
tSS
VFBLBI
Max Duty Cycle
Min Duty Cycle
Switching Frequency
ENBST Input High Voltage
ENBST Input Low Voltage
ENBST Input Current
MODE Input High Voltage
MODE Input Low Voltage
MODE Input Current
Soft-Start Time
LBI Feedback Voltage
LBI Hysteresis Voltage
VFBB = 1.15V
VFBB = 1.3V
VENBST = 5.5V
VMODE = 5.5V
Falling Threshold
l 87
92
%
l
0
%
l
2
2.2
2.4
MHz
0.8
V
0.3
V
1.5
μA
0.8
V
0.3
V
1.5
μA
0.5
ms
530
553
575
mV
35
mV
ILBIIN
VLBOLOW
ILBOLEAK
VPGDBLOW
IPGDBLEAK
LBI Input Current
LBO Voltage Low
LBO Leakage Current
PGDB Voltage Low
PGDB Leakage Current
PGDB Trip Point Voltage
PGDB Hysteresis
VLBI = 1V
ILBO = 5mA
VLBO = 5.5V
IPGDB = 5mA
VPGDB = 5.5V
VFBB Rising
10
50
nA
200
mV
0.01
1
μA
200
mV
0.01
1
μA
94
% VOUTB
6
%
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2)
VINL = 3.3V, VOLDO = 3V, unless otherwise noted.
SYMBOL PARAMETER
LDO Regulator
VINL
VOLDO
IOUTMAX
VFBL
Input Voltage Range
Output Voltage Range
Max Output Current
Feedback Voltage
Line Regulation
Load Regulation
VDROPOUT Dropout Voltage
CONDITIONS
ILOAD = 100mA
VINL = 1.8V to 5.5V
ILOAD = 10mA to 90mA
IO = 50mA
MIN TYP MAX UNITS
1.8
5.5
V
VFBL
l 100
5
V
mA
l 590
600
610
mV
0.1
%
0.4
%
100
mV
3537fd
3
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