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LD1084 Schematic ( PDF Datasheet ) - TAITRON

Teilenummer LD1084
Beschreibung 5A Low Dropout Linear Regulator
Hersteller TAITRON
Logo TAITRON Logo 




Gesamt 18 Seiten
LD1084 Datasheet, Funktion
5A Low Dropout Linear Regulator
General Description
The LD1084 is a series of low dropout positive voltage regulators
with a maximum dropout of 1.5V at 5A of load current.
The LD1084 series is available in 1.5V, 1.8V, 2.5V, 3.3V and 5.0V
versions. The fixed versions integrate the adjust resistors. It is also
available in an adjustable version which can set the output voltage
with two external resistors.
The LD1084 series includes a current limiting circuit and a trimmed
band-gap reference. It also provides thermal limiting protection
against excessive junction temperature.
The LD1084 series is available in standard packages of DPAK
(TO-252-2), D2PAK-2(TO-263-2) and TO-220-3.
Features
Low dropout voltage: 1.3V typical at 5A
Current limiting and thermal protection
Output current: 5A
Current limit: 6.5A
Operation junction temperature: 0 to 125°C
Line regulation(adj version): 0.015% typical
Load regulation(adj version): 0.1% typical
RoHS compliant and halogen free
Applications
High Efficiency Linear Regulator
Battery Chargers
Post Regulation for Switching Supply
Microprocessor Supply
Desktop PCs, RISC and Embedded Processors’ Supply
5A Low Dropout
Linear Regulator
LD1084 Series
DPAK
(TO-252-2)
D2PAK-2
(TO-263-2)
TO-220
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
Tel: (800)-TAITRON (800)-824-8766 (661)-257-6060
Fax: (800)-TAITFAX (800)-824-8329 (661)-257-6415
Rev. A/JH
Page 1 of 18






LD1084 Datasheet, Funktion
5A Low Dropout Linear Regulator
LD1084-1.5
Symbol
Description
Min. Typ.
VOUT
Output Voltage
1.485
1.47
1.5
1.5
VLINE Line Regulation
- 0.5
-1
-3
VLOAD Load Regulation
-7
VD
ILIMIT
IQ
eN
Dropout Voltage
- 1.3
Current Limit
5.5 6.5
Quiescent Current
-
5
RMS Noise(VOUT) - 0.003
RR Ripple Rejection
60 72
Temperature
Stability
Long-Term Stability
-
-
0.5
0.5
Max.
1.515
1.53
6
6
15
20
1.5
-
10
-
-
-
-
LD1084 Series
Unit Conditions
V IOUT=0mA, VIN=4.5V
V
10mAIOUT5A, 3VVIN-VOUT6V,
0°CTJ125°C
mV IOUT=10mA, 3VVIN10V
mV
IOUT=10mA, 3VVIN10V,
0°CTJ125°C
mV 0mAIOUT5A, VIN-VOUT=3V
mV
0mAIOUT5A, VIN-VOUT=3V,
0°CTJ125°C
V IOUT=5A, VOUT=1%, 0°CTJ125°C
A VIN-VOUT=3V
mA VIN =10V, 0°CTJ125°C
% 10Hzf100KHz
IOUT=5A, COUT=25uF(Tantalum)
dB VIN-VOUT=3V, f=120Hz,
0°CTJ125°C
%
IOUT=10mA, VIN-VOUT=1.5V,
0°CTJ125°C
% TA=125°C, 1000hours
www.taitroncomponents.com
Rev. A/JH
Page 6 of 18

6 Page









LD1084 pdf, datenblatt
5A Low Dropout Linear Regulator
LD1084 Series
Fig.5- Adjust Pin Current vs. Junction Temperature
Fig.6- Power Dissipation vs. Case Temperature
Junction Temperature (°C)
Fig.7- Line Regulation vs. Junction Temperature
Case Temperature (°C)
Fig.8- Adjust Pin Current vs. Output Current
Junction Temperature (°C)
www.taitroncomponents.com
Output Current (A)
Rev. A/JH
Page 12 of 18

12 Page





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