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LP3989 Datasheet(PDF) 4 Page - Lowpower Semiconductor inc

Part # LP3989
Description  600mA,Ultra-low noise, Small Package, Ultra-Fast CMOS LDO Regulator
PDF  8 Pages
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Manufacturer  POWER [Lowpower Semiconductor inc]
Direct Link  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP3989 Datasheet(HTML) 4 Page - Lowpower Semiconductor inc

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LP3989-01
Aug.-2014
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 4 of 8
Preliminary Datasheet
LP3989
Electrical Characteristics
(VIN = VOUT + 1V, CIN = COUT =2.2µF, CFB = 22pF, TA = 25° C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ.
Max
Units
Output Loading Current
ILOAD
VEN=VIN,VIN>2.5V
600
mA
Current Limit
ILIM
RLOAD = 1Ω
750
mA
Adjustable voltage reference
VFB
IOUT=1mA
0.784
0.8
0.816
V
Quiescent Current
IQ
VEN ≥ 1.4V, IOUT = 0mA
90
130
μA
Dropout Voltage
VDROP
IOUT = 200mA, VOUT >2.8V
140
160
mV
IOUT = 400mA, VOUT >2.8V
280
320
IOUT = 600mA, VOUT >2.8V
420
480
Line Regulation
ΔVLINE
VIN = (VOUT + 1V) to 5.5V,
IOUT = 1mA
0.3
%
Load Regulation
ΔLOAD
1mA < IOUT < 400mA
2
%
Standby Current
ISTBY
VEN = GND, Shutdown
0.01
1
μA
EN Input Bias Current
IEN
VEN = 1V or 5V
0.8
5.3
μA
EN Threshold
Logic-Low
Voltage
VIL
VIN = 3V to 5.5V,
Shutdown
0.4
V
Logic-High
Voltage
VIH
VIN = 3V to 5.5V,
Start-Up
1.4
VIN+
0.3
Output Noise Voltage
10Hz to 100kHz,
IOUT=200mA, Cout=1µF
100
uVRMS
Power Supply
Rejection Rate
f = 100Hz
PSRR
COUT = 1µF,
IOUT = 10mA
−76
dB
f = 1kHz
−68
Thermal Shutdown Temperature
TSD
150
°C



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