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參數(shù)資料
| 型號(hào)： | LT1580 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | FIXED POSITIVE REGULATOR |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 262K |
| 代理商： | LT1580 |
1
LT1580/LT1580-2.5
7A, Very Low
Dropout Regulator
I
Low Dropout, 540mV at 7A Output Current
I
Fast Transient Response
I
Remote Sense
I
1mV Load Regulation
I
Fixed 2.5V Output and Adjustable Output
I
No Supply Sequencing Problems in
Dual Supply Mode
The LT1580 is a 7A low dropout regulator designed to
power the new generation of microprocessors. The drop-
out voltage of this device is 100mV at light loads rising to
just 540mV at 7A. To achieve this dropout, a second low
current input voltage 1V greater than the output voltage, is
required. The device can also be used as a single supply
device where dropout is comparable to an LT1584.
Several other new features have been added to the LT1580.
A remote SENSE pin is brought out. This feature virtually
eliminates output voltage variations due to load changes.
Typical load regulation, measured at the SENSE pin, for a
load current step of 100mA to 7A is less than 1mV.
The LT1580 has fast transient response, equal to the
LT1584. On fixed voltage devices, the ADJ pin is brought
out. A small capacitor on the ADJ pin further improves
transient response.
This device is ideal for generating processor supplies of
2V to 3V on motherboards where both 5V and 3.3V
supplies are available.
FEATURES
DESCRIPTIO
N
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
Pentium is a registered trademark of Intel Corporation.
PowerPC is a trademark of IBM Corporation.
APPLICATIO
S
U
I
Microprocessor Supplies
I
Post Regulators for Switching Supplies
I
High Current Regulators
I
5V to 3.XXV for Pentium
Processors Operating
at 90MHz to 166MHz and Beyond
I
3.3V to 2.9V for Portable Pentium Processor
I
PowerPC
TM
Series Power Supplies
OUTPUT CURRENT (A)
0
M
1.0
0
1
5
7
1580 G03
4
2
3
6
0.5
DATA SHEET LIMIT
T
J
= 25
°
C
T
J
= 125
°
C
INDICATES GUARANTEED TEST POINTS
0
°
C
≤
T
J
≤
125
°
C
Dropout Voltage—
Minimum Power Voltage
TYPICAL APPLICATIO
N
U
2.5V Microprocessor Supply
V
OUT
SENSE
ADJ
GND
0.1
μ
F
1580 TA01
10
μ
F
TANT
330
μ
F
OS-CON
2.5V/7A
LT1580-2.5
100
μ
F TANT
AVX TPS
×
7
V
POWER
3.3V
7A
5V
0.2A
V
CONTROL
+
+
+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1581CT7 | Octal Bus Transceivers 20-PDIP 0 to 70 |
| LT1581-2.5 | Hook-Up Wire; Conductor Size AWG:12; No. Strands x Strand Size:65 x 30; Jacket Color:Gray; Cable/Wire MIL SPEC:MIL-W-76C Type MW; Conductor Material:Copper; Jacket Material:Polyvinylchloride (PVC); Leaded Process Compatible:Yes RoHS Compliant: Yes |
| LT1581CT7-2.5 | 10A, Very Low Dropout Regulators |
| LT1581 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LT1584CT | 7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT-1580-113-006 | 制造商:Carling Technologies 功能描述:LT-SERIES TOGGLE SWITCH - Bulk |
| LT-1580-113-012 | 制造商:Carling Technologies 功能描述:LT-SERIES TOGGLE SWITCH - Bulk |
| LT1580-2.5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:7A, Very Low Dropout Regulator |
| LT-1580-611-012 | 制造商:Carling Technologies 功能描述:LT-SERIES TOGGLE SWITCH - Bulk |
| LT1580C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:7A, Very Low Dropout Regulator |
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