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参数资料
| 型号： | LTC3528BEDDB#TRM |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 1300 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： | 10/16页 |
| 文件大小： | 316K |
| 代理商： | LTC3528BEDDB#TRM |
LTC3528/LTC3528B
3
3528f
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 LTC3528E is guaranteed to meet performance specications
from 0°C to 85°C. Specications over –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Specication is guaranteed by design and not 100% tested in
production.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SHDN Input High Voltage
0.88
V
SHDN Input Low Voltage
0.25
V
SHDN Input Current
VSHDN = 1.2V
0.3
1
μA
PGOOD Threshold Percentage
Referenced to Feedback Voltage Rising
–7
–10
–13
%
PGOOD Low Voltage
IPGOOD = 1mA
VOUT = 1.6V, IPGOOD = 1mA
0.05
0.1
0.2
V
PGOOD Leakage Current
VPGOOD = 5.5V
0.01
1
μA
ELECTRICAL CHARACTERISTICS The ● denotes the specications which apply over the specied operating
temperature range of –40°C to 85°C, otherwise specications are at TA = 25°C. VIN = 1.2V, VOUT = 3.3V, unless otherwise noted.
Note 4: Current measurements are made when the output is not switching.
Note 5: 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 specied maximum operating junction
temperature may result in device degradation or failure.
Note 6: Failure to solder the exposed backside of the package to the PC
board ground plane will result in a thermal resistance much higher than
76°C/W.
Note 7: The IC is tested in a feedback loop to make the measurement.
TYPICAL PERFORMANCE CHARACTERISTICS
Efciency vs Load Current and VIN
for VOUT = 1.8V (LTC3528)
Efciency vs Load Current and VIN
for VOUT = 3V (LTC3528)
(TA = 25°C unless otherwise noted)
LOAD CURRENT (mA)
0.01
EFFICIENCY
(%)
POWER
LOSS
(mW)
60
80
100
3528 G01
40
20
50
70
90
30
10
0
10
100
1000
1
0.1
0.01
0.1
1
10
1000
VIN = 1V
VIN = 1.2V
VIN = 1.5V
EFFICIENCY
POWER
LOSS
LOAD CURRENT (mA)
0.01
EFFICIENCY
(%)
POWER
LOSS
(mW)
60
80
100
3528 G26
40
20
50
70
90
30
10
0
10
100
1000
1
0.1
0.01
0.1
1
10
1000
VIN = 1V
VIN = 1.5V
VIN = 2.4V
EFFICIENCY
POWER
LOSS
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相关代理商/技术参数 |
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|---|---|
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