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LP3980 数据表(PDF) 5 Page - Lowpower Semiconductor inc

部件名 LP3980
功能描述  500mA,Ultra-low noise, Small Package
PDF  10 Pages
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制造商  POWER [Lowpower Semiconductor inc]
网页  http://www.lowpowersemi.com
标志 POWER - Lowpower Semiconductor inc

LP3980 数据表(HTML) 5 Page - Lowpower Semiconductor inc

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LP3980-00
Jul.-2018
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 5 of 10
Preliminary Datasheet
LP3980
Electrical Characteristics
VIN = VOUT + 1V, CIN = COUT = 1µF , TA = 25℃, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Units
VIN
Input Voltage
1.6
5.5
ΔVOUT
Output Voltage Accuracy
IOUT = 1mA
−2
--
+2
%
Imax
Maximum output Current
VEN = VIN, VIN > 2.5V
500
mA
ILIM
Current Limit
RLOAD = 1Ω
650
mA
IQ
Quiescent Current
VEN ≥ 1.2V, IOUT = 0mA
20
μA
VDROP
Dropout Voltage
IOUT = 200mA, VOUT > 2.8V
160
200
mV
IOUT = 300mA, VOUT > 2.8V
240
300
mV
IOUT = 500mA, VOUT > 2.8V
400
500
mV
ΔVLINE
Line Regulation
VIN = (VOUT + 1V) to 5.5V, IOUT = 1mA
0.1
%
ΔVLOAD
Load Regulation
1mA < IOUT < 300mA
0.6
%
ISTBY
Standby Current
VEN = GND, Shutdown
0.01
1
μA
IIBSD
EN Input Bias Current
VEN = GND or VIN
0.01
100
nA
VIL
EN Threshold
Logic-Low
Voltage
VIN = 3V to 5.5V, Shutdown
0.4
V
VIH
Logic-High
Voltage
VIN = 3V to 5.5V, Start-Up
1.4
V
-
Output Noise Voltage
f = 10Hz to 100kHz, IOUT = 0mA
VOUT = 2.8V
100
uVRMS
PSRR
Power Supply
Rejection Rate
f=217Hz
COUT = 1µF, IOUT = 50mA
−80
dB
f=1KHz
−76
dB
TSD
Thermal Shutdown
Temperature
150
℃



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