SPX1584U [SIPEX]
8A Low Dropout Voltage Regulator Adjustable & Fixed 3.3V; 8A低压差稳压器可调和固定3.3V
| 型号： | SPX1584U |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | 8A Low Dropout Voltage Regulator Adjustable & Fixed 3.3V |
| 文件： | 总5页 (文件大小：242K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SPX1584
8A Low Dropout Voltage Regulator
Adjustable & Fixed 3.3V
FEATURES
APPLICATIONS
• Adjustable Output Down to 1.2V or Fixed 3.3V
• Output Current of 8A
• Powering Intel Pentium µP from +5V Supplies
• Power PCSupplies
• Low Dropout Voltage
• SMPS Post-Regulator
• High Efficiency “Green” Computer Systems
• High Efficiency Linear Power Supplies
• Extremely Tight Load and Line Regulation
• Current & Thermal Limiting
• Standard 3-Terminal Low Cost TO-220
• Similar to Industry Standard LT1083/LT1584
Portable Instrumentation
•
• Constant Current Regulators
• Adjustable Power Supplies
• Battery Charger
PRODUCT DESCRIPTION
The SPX1584 is a low power 8A Adjustable Voltage Regulator that is very easy to use. It requires only 2 external resistors to set the
output voltage. This device is an excellent choice when using Powering Intel Microprocessor to convert from +5V to 3.3V supplies,
and as a post regulator for switching supplies applications. The SPX1584 features low dropout of a maximum 1.5 volts.
The SPX1584 offers full protection against over-current faults, reversed input polarity, reversed load insertion, over temperature
operation, and positive and negative transient voltage. On-Chip trimming adjusts the reference voltage to 1%. The IQ of this device
flows into the load, which increases efficiency.
The SPX1584 is offered in a 3-pin TO-220 package compatible with older 3-terminal regulators. For a 5A low dropout regulator refer
to the SPX1585 datasheet.
PIN CONNECTIONS
TO-220-3 (U)
SPX1584
1
2
3
VIN
VOUT
ADJ/GND
Front View
Date: 04/29/04
SPX1584
ABSOLUTE MAXIMUM RATINGS
Power Dissipation..........................................Internally Limited
Lead Temp. (Soldering, 10 Seconds) .............................. 300°C
Storage Temperature Range ............................-65° to +150°C
Operating Junction Temperature Range
Input Supply Voltage ....................................................+10V
Input to Output Voltage Differential.............................. 8.8V
SPX1584 Control Section..........................0C° to +125°C
SPX1584 Power Transistor........................0C° to +150°C
ELECTRICAL CHARACTERISTICS (Note 1) at IOUT = 10mA, T = 25 C, unless otherwise specified.
°
A
Parameter
Conditions
SPX1584A
Min
SPX1584
Units
Typ
Max
Min
Max
3.3V Version
Output Voltage (Note 2)
3.3
3.3
3.270
3.240
3.330
3.360
3.230
3.201
3.370
3.399
V
SPX1584-3.3V, 0≤IOUT1.5A,
4.75V≤VIN≤7V
All Voltage Options
Reference Voltage
1.250
1.238
1.225
1.262
1.238
1.225
1.262
V
10mA ≤ IOUT ≤ IFULLLOAD
1.250
1.270
1.270
3.3V≤(VIN - VOUT )≤ VIN MAX – VOUT MAX
(VIN- VOUT) = VIN MAX – VOUT MAX
Mid Load Current
Line Regulation
mA
%
5
10
10
0.015
0.05
0.1
0.2
1.1
0.2
0.5
0.3
0.4
1.2
0.2
0.5
0.3
0.4
1.2
1.5V ≤VIN - VOUT ≤ VIN MAX – VOUT MAX
I
LOAD = 10mA
Load Regulation
Dropout Voltage
%
V
10mA ≤ IOUT ≤ IFULLLOAD
(VIN - VOUT)=3V
IOUT=IFULLLOAD , ∆VREF=1%
Current Limit
VIN - VOUT=5V
A
9.5
8.0
8.0
Long Term Stability
0.3
1
90
5
1
90
5
%
TA=125°C, 1000Hrs.
Adjust Pin Current
55
0.2
TA=25°C
µA
µA
%/W
%
Adjust Pin Current
Change
Thermal Regulation
30ms pulse
0.003
0.5
0.01
0.01
Temperature Stability
Ripple Rejection Ratio
VIN - VOUT=3V
dB
75
60
60
IOUT =3A, COUT = 25µF, CADJ = 25µF,
f= 120Hz
Output Noise, RMS
10Hz to 10kHz
0.003
% VO
Thermal Resistance
TO-220
Junction to Tab
2.7
2.7
°C/W
Junction-to-Case
Junction to Ambient
0.65
0.65
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: A 10µF output capacitor is required on SPX1584
Date: 04/29/04
SPX1584
TYPICAL CHARACTERISTICS
Date: 04/29/04
SPX1584
TYPICAL APPLICATIONS
OUT
VIN
SPX1584
SPX1584
VIN
VOUT
OUT
IN
IN
C1
C2
C1
ADJ
ADJ
VREF
R1
R2
R1
LOAD
+ IADJ
2
R2
VOUT = VREF 1+ R
R1
Typical Adjustable Regulator
8A Current Output Regulator
3.45V
VCC
VIN
SPX1584
OUT
IN
+5V
C2
C1
ADJ
R1
R2
Powering Intel PentiumTM with SPX1584
Pentium Processor is a trademark of Intel Corp. Power PC is a trademark of IBM Corp.
Date: 04/29/04
SPX1584
ORDERING INFORMATION
Ordering No.
SPX1584U
Precision
Output Voltage
Packages
3 Lead TO-220
3 Lead TO-220
3 Lead TO-220
3 Lead TO-220
2%
2%
1%
1%
Adj
3.3V
Adj
3.3V
SPX1584U-3.3
SPX1584AU
SPX1584AU-3.3
Corporation
SIGNAL PROCESSING EXCELLENCE
Sipex Corporation
Headquarters and Main Offices:
22 Linnell Circle
Billerica, MA 01821
TEL: (978) 667-8700
FAX: (978) 670-9001
e-mail: sales@sipex.com
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 935-7600
FAX: (408) 934-7500
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described
hereing; neither does it convey any license under its patent rights nor the rights of others.
Date: 04/29/04
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