LT3467AIS67 Ver la hoja de datos (PDF) - Linear Technology
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LT3467AIS67 Datasheet PDF : 18 Pages
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LT3467/LT3467A
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3V, VSHDN = VIN unless otherwise noted. Specifications are for both
the LT3467 and LT3467A unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Operating Voltage
Maximum Operating Voltage
Feedback Voltage
FB Pin Bias Current
(Note 3)
2.2
2.4
V
16
V
1.230
1.255
1.270
V
l 1.220
1.280
V
l
10
50
nA
Quiescent Current
Quiescent Current in Shutdown
Reference Line Regulation
Switching Frequency
VSHDN = 2.4V, Not Switching
VSHDN = 0.5V, VIN = 3V
2.6V ≤ VIN ≤ 16V
LT3467
LT3467A
LT3467A
1.2
2
mA
0.01
1
μA
0.01
0.05
%/V
1
1.3
1.6
MHz
1.6
2.1
2.7
MHz
l
1.6
MHz
Maximum Duty Cycle
Minimum Duty Cycle
Switch Current Limit
Switch VCESAT
Switch Leakage Current
SHDN Input Voltage High
SHDN Input Voltage Low
SHDN Pin Bias Current
SS Charging Current
LT3467
LT3467
LT3467A
LT3467A
At Minimum Duty Cycle
At Maximum Duty Cycle (Note 4)
ISW = 1.1A
VSW = 5V
VSHDN = 3V
VSHDN = 0V
VSS = 0.5V
88
94
%
l
87
%
82
88
%
l
78
%
10
%
1.4
1.8
2.5
A
0.8
1.2
1.9
A
330
500
mV
0.01
1
μA
2.4
V
0.5
V
16
32
μA
0
0.1
μA
2
3
4.5
μA
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 LT3467E/LT3467AE are guaranteed to meet performance
specifications from 0°C to 85°C, junction temperature. Specifications over
the –40°C to 85°C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
The LT3467I/LT3467AI are guaranteed over the full –40°C to 125°C
operating junction temperature range.
Note 3: Current flows out of the pin.
Note 4: See Typical Performance Characteristics for guaranteed current
limit vs duty cycle.
3467afe
3
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