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| 型号： | LT3467IDDB#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2.5 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | 3 X 2 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WECD-1, DFN-8 |
| 文件页数： | 12/18页 |
| 文件大小： | 266K |
| 代理商： | LT3467IDDB#TR |
LT3467/LT3467A
3
3467afe
ELECTRICAL CHARACTERISTICS
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
specications from 0°C to 85°C, junction temperature. Specications 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.
The
l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 3V, VSHDN = VIN unless otherwise noted. Specications are for both
the LT3467 and LT3467A unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Operating Voltage
2.2
2.4
V
Maximum Operating Voltage
16
V
Feedback Voltage
l
1.230
1.220
1.255
1.270
1.280
V
FB Pin Bias Current
(Note 3)
l
10
50
nA
Quiescent Current
VSHDN = 2.4V, Not Switching
1.2
2
mA
Quiescent Current in Shutdown
VSHDN = 0.5V, VIN = 3V
0.01
1
μA
Reference Line Regulation
2.6V ≤ VIN ≤ 16V
0.01
0.05
%/V
Switching Frequency
LT3467
LT3467A
l
1
1.6
1.3
2.1
1.6
2.7
MHz
Maximum Duty Cycle
LT3467
LT3467A
l
88
87
82
78
94
88
%
Minimum Duty Cycle
10
%
Switch Current Limit
At Minimum Duty Cycle
At Maximum Duty Cycle (Note 4)
1.4
0.8
1.8
1.2
2.5
1.9
A
Switch VCESAT
ISW = 1.1A
330
500
mV
Switch Leakage Current
VSW = 5V
0.01
1
μA
SHDN Input Voltage High
2.4
V
SHDN Input Voltage Low
0.5
V
SHDN Pin Bias Current
VSHDN = 3V
VSHDN = 0V
16
0
32
0.1
μA
SS Charging Current
VSS = 0.5V
2
3
4.5
μA
Note 3: Current ows out of the pin.
Note 4: See Typical Performance Characteristics for guaranteed current
limit vs duty cycle.
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