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參數資料
| 型號： | SPX1580T5-2.5 |
| 英文描述： | 122 x 32 pixel format, Compact LCD size |
| 中文描述： | 第7A超低壓降穩(wěn)壓器快速響應，可調 |
| 文件頁數： | 1/8頁 |
| 文件大?。?/td> | 168K |
| 代理商： | SPX1580T5-2.5 |
1
Date: 5/14/04
SPX1580 7A Ultra Dropout Voltage Regulator
Copyright 2004 Sipex Corporation
SPX1580
DESCRIPTION
FEATURES
■
Low Dropout Voltage 540mV at 7A Full Load Current
■
Adjustable Ouput Down to 1.25V from ATX Power Supply
■
Fixed Output Voltages of 3.3V and 2.5V
■
Extremely Tight Load and Line Regulation
■
Standard 5-Terminal Low Cost TO-220 and TO-263
■
Replacement to Industry Standard LT1580
T
he SPX1580 is a 7A Low Dropout Regulator with extremely low dropout voltage. The adjustable version
requires only two external resistors to set the output voltage. The fixed version has a preset output of 3.3V
or 2.5V and does not require any external resistors. The SPX1580 features a low dropout of 540mV(Typ.)
and offers fast transient response. This device is suitable for Pentium applications requiring 2.5V from 3.3V
ATX power supplies, where a low current input voltage 1V greater than the output voltage is available. With
an external sense pin the load regulation is less than 1mV. This device is an excellent choice for the use
of powering low voltage microprocessors that require a lower dropout, fast transient response to regulate
from 3.3V and 5V supplies. The SPX1580 is also an excellent choice as a post regulator for switching
supplies applications.
The SPX1580 offers protection against over-current faults, reversed input polarity, over temperature
operation and positive and negative transient voltage.
The SPX1580 is offered in a 5 pin TO-220 and TO-263 compatible with industry standard 5-terminal
regualtors. For 5A, 3A and 1.5A ultra low dropout versions refer to SPX1581, SPX1582 and SPX1583 data
sheets respectively.
7A Ultra Dropout Voltage Regulator
Fast Response, Adjustable & Fixed
APPLICATIONS
■
3.3V ATX Power Supplies
■
3.3V to 2.9V for Portable PENTIUM
TM
Processor
■
5V to 3.5V VRE Supply
■
High efficiency "Green" Computer Systems
C4
68
μ
F
2.5V
V
OUT
R1
R2
V
OUT
SENSE
C2
10
μ
F
V
CTRL
C1
33
μ
F
3.3V
V
IN
5V
V
CTRL
SPX1580
5
4
2
3
1
(1) V
CTRL
needed when V
IN
< 5V.
OUT
REF
(1+R
2
/R
1
)+I
ADJ
R
2
.
(2) V
REF
= V
ADJ
V
IN
C4
68
μ
F
2.5V
V
OUT
V
OUT
SENSE
C2
10
μ
F
V
CTRL
C1
33
μ
F
3.3V
V
IN
5V
V
CTRL
SPX1580
5
4
2
3
1
(1) V
CTRL
needed when V
IN
< 5V.
GND
V
IN
3
2
1
SPX1580
5 Pin TO-220
S
A
V
O
V
C
V
I
4
5
1
2
3
SPX1580
5 Pin TO-263
S
A
V
O
V
C
V
I
TYPICAL APPLICATIONS CIRCUITS
Now Available in Lead Free Packaging
相關PDF資料 |
PDF描述 |
|---|---|
| SPX1580T5-2.8 | 122 x 32 pixel format, Compact LCD size |
| SPX1580U5-2.5 | 320 x 240 pixel format, CFL backlight available with power harness |
| SPX1581T-2.5 | 5A Ultra Low Dropout Voltage Regulator Fast Response, Adjustable & Fixed |
| SPX1581T-3.3 | 5A Ultra Low Dropout Voltage Regulator Fast Response, Adjustable & Fixed |
| SPX1581T5 | 5A Ultra Low Dropout Voltage Regulator Fast Response, Adjustable & Fixed |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SPX1580T5-3.3 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:7A Ultra Low Dropout Voltage Regulator Fast Response, Adjustable & Fixed |
| SPX1580T5-3.3/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:7A Ultra Dropout Voltage Regulator Fast Response, Adjustable & Fixed |
| SPX1580T5-L | 制造商:Exar Corporation 功能描述:IC V REG LDO 7A 2% ADJ SMD 1580 |
| SPX1580T5-L-2-5 | 制造商:Exar Corporation 功能描述:V REG LDO 7A 2% +2.5V SMD 1580 |
| SPX1580T5-L-3-3 | 制造商:Exar Corporation 功能描述:V REG LDO 7A 2% +3.3V SMD 1580 |
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