參數(shù)資料
型號(hào)： LT3681EDE
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 4.4 A SWITCHING REGULATOR, 3100 kHz SWITCHING FREQ-MAX, PDSO14
封裝： 4 X 3 MM, PLASTIC, DFN-14
文件頁(yè)數(shù)： 18/24頁(yè)
文件大?。?/td> 367K
代理商： LT3681EDE
LT3681
3
3681f
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Schottky Diode Forward Voltage
IDA = 1A
IDA = 2A
0.50
0.56
V
Power Schottky Diode Leakage Current
VDC-DA = 40V
100
μA
Switching Frequency
RT = 8.66k
RT = 29.4k
RT = 187k
2.5
1.25
250
2.8
1.4
300
3.1
1.55
350
MHz
kHz
Minimum Switch Off-Time
●
130
200
nS
Switch Current Limit
Duty Cycle = 5%
3.2
3.8
4.4
A
Switch VCESAT
ISW = 2A
360
mV
Boost Schottky Reverse Leakage
VSW = 10V, VBIAS = 0V
0.02
2
A
Minimum Boost Voltage (Note 4)
●
1.5
2.1
V
BOOST Pin Current
ISW = 1A
18
35
mA
RUN/SS Pin Current
VRUN/SS = 2.5V
5
10
μA
RUN/SS Input Voltage High
2.5
V
RUN/SS Input Voltage Low
0.2
V
PG Threshold Offset from Feedback Voltage
VFB Rising
122
mV
PG Hysteresis
5
mV
PG Leakage
VPG = 5V
0.1
1
μA
PG Sink Current
VPG = 3V
●
100
600
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 LT3681E 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: Bias current ows into the FB pin.
Note 4: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
The
● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 10V, VRUNS/SS = 10V VBOOST = 15V, VBIAS = 3.3V unless otherwise
noted. (Note 2)
ELECTRICAL CHARACTERISTICS
相關(guān)PDF資料
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