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PDF LD1084 Data sheet ( Hoja de datos )

Número de pieza LD1084
Descripción 5A Low Dropout Linear Regulator
Fabricantes TAITRON 
Logotipo TAITRON Logotipo



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No Preview Available ! LD1084 Hoja de datos, Descripción, Manual

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

1 page




LD1084 pdf
5A Low Dropout Linear Regulator
Electrical Characteristics
(Unless otherwise specified, TJ=25°C)
LD1084-ADJ
Symbol
Description
Min. Typ.
VREF
Reference Voltage
1.238
1.225
1.250
1.250
VLINE Line Regulation
- 0.015
- 0.035
VLOAD Load Regulation
- 0.1
- 0.2
VD
ILIMIT
ILOAD
IQ
eN
Dropout Voltage
-
Current Limit
5.5
Min. Load Current
-
Quiescent Current
-
RMS Noise(VOUT) -
1.3
6.5
3
5
0.003
RR Ripple Rejection 60 72
IADJ
IADJ
Adjust Pin Current
Adjust Pin Current
Change
Temperature
Stability
Long-Term
Stability
-
-
-
-
55
0.2
0.5
0.5
Max.
1.262
1.270
0.2
0.2
0.3
0.4
1.5
-
10
10
-
-
120
5
-
-
LD1084 Series
Unit Conditions
V IOUT=10mA, VIN-VOUT=3V
V
10mAIOUT5A,1.5VVIN-VOUT5V
0°CTJ125°C
% IOUT=10mA, 2.85VVIN10V
%
IOUT=10mA, 2.85VVIN10V,
0°CTJ125°C
% 0mAIOUT5A, VIN-VOUT=3V
%
0mAIOUT5A, VIN-VOUT=3V,
0°CTJ125°C
V IOUT=5A, VREF =1%, 0°CTJ125°C
A VIN-VOUT=3V
mA VIN =10V, 0°CTJ125°C
mA VIN =10V, 0°CTJ125°C
% 10Hzf100KHz
IOUT=5A, COUT=25uF(Tantalum)
dB VIN-VOUT=3V, f=120Hz,
0°CTJ125°C
uA
IOUT=10mA, VIN =4.25V,
0°CTJ125°C
uA
10mAIOUT5A,1.5VVIN-VOUT4.5V,
0°CTJ125°C
%
IOUT=10mA, VIN-VOUT=1.5V,
0°CTJ125°C
% TA=125°C, 1000hours
www.taitroncomponents.com
Rev. A/JH
Page 5 of 18

5 Page





LD1084 arduino
5A Low Dropout Linear Regulator
Typical Characteristics Curves
LD1084 Series
Fig.1- Dropout Voltage vs. Output Current
Fig.2- Output Voltage vs. Junction Temperature
Output Current (A)
Fig.3- Reference Voltage vs. Junction Temperature
Junction Temperature (°C)
Fig.4- Min. Load Current vs. Junction Temperature
Junction Temperature (°C)
www.taitroncomponents.com
Junction Temperature (°C)
Rev. A/JH
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