Sipex Corporation SPX1084AT, SPX1084AT-1.5, SPX1084AT-2.5, SPX1084AT-3.3, SPX1084AT-5.0 Datasheet
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SPX1084
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5A Low Dropout Voltage Regulator |
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Adjustable & Fixed Output, |
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Fast Response |
FEATURES |
APPLICATIONS |
• Adjustable Output Down To 1.2V |
• Powering VGA & Sound Card |
• Fixed Output Voltages 1.5, 2.5, 3.3 & 5.0V |
• Power PC Supplies |
• Output Current Of 5A |
• SMPS Post-Regulator |
• Low Dropout Voltage 1.1V Typ. |
• High Efficiency “Green” Computer Systems |
• Extremely Tight Load And Line Regulation |
• High Efficiency Linear Power Supplies |
• Current & Thermal Limiting |
• Portable Instrumentation |
• Standard 3-Terminal Low Cost TO-220 & TO-263 |
• Constant Current Regulators |
• Similar To Industry Standard LT1085/LT1585 |
• Adjustable Power Supplies |
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• Battery charger |
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PRODUCT DESCRIPTION
The SPX1084 are low power 5A adjustable and fixed voltage regulators with 30V maximum VIN. They are very easy to use. It requires only 2 external resistors to set the output voltage for adjustable version. The SPX1084 are designed for low voltage applications that offers lower dropout voltage and faster transient response. This device is an excellent choice for use in powering low voltage microprocessor that require a lower dropout, faster transient response to regulate from +2.5V to 3.8V supplies and as a post regulator for switching supplies applications. The SPX1084 features low dropout of a maximum of 1.2 volts.
The SPX1084 offers full protection against over-current faults, reversed input polarity, reversed load insertion, and positive and negative transient voltage. On-Chip trimming adjusts the reference voltage to 1%. The IQ of this device flows into load, which increases efficiency.
The SPX1084 are offered in 3-pin TO-220 and TO-263 packages compatible with other 3 terminal regulators. For a similar 5A low dropout voltage regulator refer to the SPX1084 datasheet. Also for higher current requirements, refer to the SPX1084 datasheet.
PIN CONNECTIONS
TO-263-3 (T) |
TO-220-3 (U) |
SPX1084
SPX1084
1 2 3
1 2 3
ADJ/GND VOUT VIN
Top View
ADJ/GND VOUT VIN
Front View
Rev. 10/23/00
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SPX1084 |
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ABSOLUTE MAXIMUM RATINGS |
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Lead Temp. (Soldering, 10 Seconds) .............................. 300°C |
Input Voltage........................................................ 30V |
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Storage Temperature Range ............................ -65° to +150°C |
Input to Output Voltage Differential .................... 30V |
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Operating Junction Temperature Range |
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SPX1084 Control Section.......................... -45°C +125°C |
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SPX1084 Power Transistor.........................-45°C +150°C |
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ELECTRICAL CHARACTERISTICS (NOTE 1) at IOUT = 10mA, Ta=25°C, unless otherwise specified. |
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PARAMETER |
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CONDITIONS |
Typ |
SPX1084A |
SPX1084 |
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UNITS |
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Min |
Max |
Min |
Max |
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1.5V Version |
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Output Voltage (Note 2) |
SPX1084-1.5V, 0 < IOUT < 5A, |
1.5 |
1.485 |
1.515 |
1.47 |
1.53 |
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3.3V<VIN<25V |
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1.47 |
1.53 |
1.455 |
1.545 |
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2.5V Version |
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Output Voltage (Note 2) |
SPX1084-2.5V, 0 < IOUT < 5A, |
2.5 |
2.475 |
2.525 |
2.45 |
2.55 |
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4.0V<VIN<25V |
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2.45 |
2.55 |
2.425 |
2.575 |
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3.3V Version |
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Output Voltage (Note 2) |
SPX1084-3.3V, 0 < IOUT < 5A, |
3.3 |
3.267 |
3.333 |
3.234 |
3.366 |
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4.8V<VIN<25V |
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3.234 |
3.366 |
3.069 |
3.399 |
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5.0V Version |
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Output Voltage (Note 2) |
SPX1084-5.0V, 0 ≤ IOUT ≤ 5A, |
5 |
4.950 |
5.050 |
4.9 |
5.1 |
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6.5V≤VIN≤25V |
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4.900 |
5.100 |
4.65 |
5.15 |
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Adjustable Version |
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Reference Voltage (VREF) |
1.5V≤ (VIN -VOUT)≤25V, 10mA≤IOUT≤5A |
1.250 |
1.238 |
1.262 |
1.225 |
1.270 |
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1.250 |
1.225 |
1.270 |
1.212 |
1.288 |
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All Voltage Options |
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Min. Load Current (Note 3) |
1.5V≤ (VIN –VOUT)≤25V |
5 |
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10 |
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10 |
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Line Regulation (∆VREF(Vin)) |
2.75V≤VIN ≤25V, IOUT=10mA, TJ=25ºC |
0.005 |
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0.2 |
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0.2 |
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% |
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(Note 3) |
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VIN ≤25V, IOUT=0mA, TJ=25ºC (Note 2) |
0.005 |
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0.2 |
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0.2 |
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Load Regulation(∆VREF(IOUT)) |
10mA≤IOUT ≤5A, (VIN-VOUT)=3V, TJ=25ºC |
0.05 |
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0.7 |
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0.7 |
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% |
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(Note 3) |
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0≤IOUT ≤5A, VIN=7V, TJ=25ºC (Note 2) |
0.05 |
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0.3 |
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0.3 |
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Dropout Voltage |
∆VREF=1% |
IOUT = 5A (Note 3) |
1.2 |
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1.5 |
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1.5 |
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IOUT < 5A (Note 2) |
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Current Limit IOUT(MAX) |
VIN=7V |
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6 |
5.2 |
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5.2 |
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A |
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1.4V ≤ (VIN – VOUT) (Note3) |
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Long Term Stability |
TA=125ºC, 1000 Hrs. |
0.3 |
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1 |
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1 |
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% |
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(Note 2) |
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Thermal Regulation(∆VOUT(Pwr)) |
TA=25ºC, 20 ms pulse |
0.01 |
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0.020 |
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0.020 |
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%/W |
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Temperature Stability (∆VOUT(T)) |
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0.25 |
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% |
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Output Noise, RMS |
10Hz to 10kHz |
TA=25ºC |
0.003 |
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% VO |
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Thermal Resistance |
TO-220 |
Junction to Tab |
3.0 |
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3.0 |
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3.0 |
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ºC/W |
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Junction to Ambient |
60 |
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60 |
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60 |
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DD Package |
Junction to Tab |
3.0 |
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3.0 |
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3.0 |
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Junction to Ambient |
60 |
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60 |
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60 |
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The Bold specifications apply to the full operating temperature range.
Note 1: Changes in output voltage due to heating effects are covered under the specification for thermal regulation.
Note 2: Fixed Version Only
Note 3: Adjustable Version Only
Rev. 10/23/00
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