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LD2982AM285R-LD2982BM285R Fast Delivery,Good Price
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LD2982AM285RSTN/a6000avaiVERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION
LD2982BM285RSTN/a6000avaiVERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION


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LD2982AM285R-LD2982BM285R
VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION
1/13July 2003 VERY LOW DROPOUT VOLTAGE (120mV 50mA AND 7mVAT 1mA LOAD) VERY LOW QUIESCENT CURRENT (375μA
TYP. AT 50mA LOAD AND 75μAAT 1mA) OUTPUT CURRENT UP TO 50mA LOGIC CONTROLLED ELECTRONIC
SHUTDOWN OUTPUT VOLTAGE OF 1.5,1.8, 2.5, 2.8, 2.85, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8,4, 4.7, 5V INTERNAL CURRENT AND THERMAL LIMIT AVAILABLEIN ± 1% TOLLERANCE (AT 25°C,
AVERSION) SUPPLY VOLTAGE REJECTION: 45dB (TYP) ONLY 1μF FOR STABILITY LOW OUTPUT NOISE VOLTAGE 30μVrms SMALLEST PACKAGE SOT23-5L TEMPERATURE RANGE: -40°C TO 125°C
DESCRIPTION

The LD2982isa 50mA fixed output voltage
regulator. The ultra low drop voltage and the low
quiescent current make them particularly suitable
for low noise, low power applications, andin
battery powered systems. In sleep mode
quiescent currentis less than 1μA when INHIBIT
pinis pulled low. Shutdown Logic Control Function availableon pin3 (TTL compatible). This means
that when the deviceis usedas local regulator,it possibleto puta partof the boardin standby,
decreasing the total power consumption. external capacitor C BYP =10nF connected
between bypass pin and GND reduce the noise 30μVrms.
Typical application arein cellular phone, palmtop/
laptop computer, personal digital assistant (PDA),
personal stereo, camcorder and camera.
LD2982
SERIES

VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR
WITH INHIBIT FUNCTION, LOW ESR CAP. COMPATIBLE
SCHEMATIC DIAGRAM
LD2982 SERIES
2/13
ABSOLUTE MAXIMUM RATINGS

AbsoluteMaximum Ratingsare those values beyond which damagetothe device may occur. Functional operation under these conditionis
not implied.
THERMAL DATA
CONNECTION DIAGRAM
(top view) PIN DESCRIPTION
ORDERING CODES
LD2982 SERIES
3/13
ELECTRICAL CHARACTERISTICS FOR LD2982A
(TJ= 25°C,VI=VO +1V,IO =1mA,V SHDN =2V, =1μF, CO =1μF, unless otherwise specified)
LD2982 SERIES
4/13
LD2982 SERIES
5/13
ELECTRICAL CHARACTERISTICS FOR LD2982B
(TJ= 25°C,VI=VO +1V,IO =1mA,V SHDN =2V, =1μF, CO =1μF, unless otherwise specified)
LD2982 SERIES
6/13
LD2982 SERIES
7/13
TYPICAL CHARACTERISTICS
(unless otherwise specifiedTJ= 25°C,CI =1μF,CO =2.2μF,C BYP =100nF)
Figure1:
Output Voltagevs Temperature
Figure2:
Dropout Voltagevs Temperature
Figure3:
Dropout Voltagevs Output Current
Figure4:
Quiescent Currentvs Load Current
Figure5:
Quiescent Currentvs Temperature
Figure6:
Supply Voltage Rejectionvs
Temperature
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