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LR8401 Datasheet(PDF) 3 Page - Leshan Radio Company

Part # LR8401
Description  Synchronous Step-Up DC/DC
PDF  10 Pages
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Manufacturer  LRC [Leshan Radio Company]
Direct Link  http://www.lrc.cn/
Logo LRC - Leshan Radio Company

LR8401 Datasheet(HTML) 3 Page - Leshan Radio Company

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 ABSOLUTE MAXIMUM RATINGS
(Unless otherwise specified, Ta=25°C)
PARAMETER
SYMBOL
RATINGS
UNITS
VOUT Pin Voltage
VOUT
VSS-0.3 ~ VSS+8
V
EN
Pin Voltage
EN
VSS-0.3 ~ VSS+8
V
LX
Pin Voltage
VLX
VSS-0.3 ~ VSS+8
V
LX
Pin Current
ILX
1000
mA
Power
Dissipation
SOT-23
PD
250
mW
SOT23-3/SOT-23-5
250
mW
SOT-89-3
500
mW
TO-92
500
mW
Operating Temperature
Topr
-40 ~+85
°C
Storage Temperature
Tstg
-40 ~+125
°C
Soldering Temperature & Time
Tsolder
260°C, 10s
 ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, Ta=25°C)
PARAMETER
SYNBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output Voltage
VOUT
－
VOUT(S)
×0.98
VOUT
VOUT(S)
×1.02
V
Input Voltage
VIN
－
－
－
5
V
Operation Start Voltage
VST1
IOUT= 1 mA
－
－
0.9
V
Input Current At No Load
ISS
VIN=1.8V,VOUT=3.0V
－
15
-
µA
Current Consumption 2
ISS2
VOUT=VOUT＋0.5 V
－
6
10
µA
Current Consumption
During Shutdown
ISSS
VEN = 0 V
－
－
1.0
µA
Maximum Oscillation
Frequency
fOSC
VOUT= 0.95×VOUT， measure
waveform at LX pin
300
KHz
Duty Ratio 1
Duty1
VOUT= 0.95×VOUT，
measure waveform at
LX pin
70
78
85
%
Efficiency
EFFI
90
%
Shutdown Pin Input
Voltage
VSH
VOUT=0.95×VOUT， judge
oscillation at LX pin
0.75
－
－
V
VSL1
VOUT= 0.95×VOUT，
judge stop at LX pin
－
－
0.3
V
Shutdown Pin Input
Current
ISH
VEN＝6V
-0.1
－
0.1
µA
ISL
VEN＝0V
-0.1
－
0.1
µA
Remark：VOUT(S) specified above is the set output voltage value, and VOUT is the typical value of
the actual output voltage.
LESHAN RADIO COMPANY, LTD.
3/10



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