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參數(shù)資料
| 型號(hào)： | LTC3563EDC |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.75 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 2 X 2 MM, PLASTIC, MO-229WCCD-2, DFN-6 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 276K |
| 代理商： | LTC3563EDC |
LTC3563
3
3563f
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. No pin should exceed 6V.
Note 2: The LTC3563 is guaranteed to meet performance specications
from 0°C to 85°C. Specications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Failure to solder the Exposed Pad of the package to the PC board
will result in a thermal resistance much higher than 40°C/W.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VUVLO
Undervoltage Lockout Threshold
VIN Rising
VIN Falling
1.8
2.0
1.9
2.3
V
VRUN
RUN Threshold
●
0.3
1.2
V
IRUN
RUN Leakage Current
●
±0.01
±1
A
VSEL
VSEL Threshold
●
0.3
1
1.2
V
RSEL
VSEL Pull-Up Resistance
Resistance Between VSEL and VIN
1.3
2.2
3
MΩ
The ● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 3.6V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
Note 4: The converter is tested in a proprietary test mode that connects
the output of the error amplier to the SW pin, which is connected to an
external servo loop.
Note 5: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 6: The DFN switch on resistance is guaranteed by correlation to wafer
level measurements.
Note 7: TJ is calculated from the ambient temperature TA and power
dissipation PD according to the following formula:
TJ = TA + (PD) (θJA).
Burst Mode Operation
Start-Up from Shutdown
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TA = 25°C unless otherwise specied.
SW
2V/DIV
VIN = 3.6V
VOUT = 1.87V
ILOAD = 30mA
2
s/DIV
3563 G01
VOUT
50mV/DIV
AC COUPLED
IL
100mA/DIV
RUN
2V/DIV
IL
200mA/DIV
VIN = 3.6V
VOUT = 1.87V
ILOAD = 0A
400
s/DIV
3542 G02
VOUT
1V/DIV
RUN
2V/DIV
IL
500mA/DIV
VIN = 3.6V
VOUT = 1.87V
ILOAD = 500mA
400
s/DIV
3563 G03
VOUT
1V/DIV
Start-Up from Shutdown
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