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Teilenummer | LD1084 |
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Beschreibung | 5A Low Dropout Linear Regulator | |
Hersteller | TAITRON | |
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Gesamt 18 Seiten 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
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
10mA≤IOUT≤5A, 3V≤VIN-VOUT≤6V,
0°C≤TJ≤125°C
mV IOUT=10mA, 3V≤VIN≤10V
mV
IOUT=10mA, 3V≤VIN≤10V,
0°C≤TJ≤125°C
mV 0mA≤IOUT≤5A, VIN-VOUT=3V
mV
0mA≤IOUT≤5A, VIN-VOUT=3V,
0°C≤TJ≤125°C
V IOUT=5A, ∆VOUT=1%, 0°C≤TJ≤125°C
A VIN-VOUT=3V
mA VIN =10V, 0°C≤TJ≤125°C
% 10Hz≤f≤100KHz
IOUT=5A, COUT=25uF(Tantalum)
dB VIN-VOUT=3V, f=120Hz,
0°C≤TJ≤125°C
%
IOUT=10mA, VIN-VOUT=1.5V,
0°C≤TJ≤125°C
% TA=125°C, 1000hours
www.taitroncomponents.com
Rev. A/JH
Page 6 of 18
6 Page 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 | ||
Seiten | Gesamt 18 Seiten | |
PDF Download | [ LD1084 Schematic.PDF ] |
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