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參數(shù)資料
| 型號(hào)： | LT1581CT7 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Octal Bus Transceivers 20-PDIP 0 to 70 |
| 中文描述： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PZFM7 |
| 封裝： | PLASTIC, TO-220, 7 PIN |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 264K |
| 代理商： | LT1581CT7 |
1
LT1581/LT1581-2.5
10A, Very Low
Dropout Regulators
I
Low Dropout, 430mV at 10A 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 LT
1581 is a 10A 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 430mV at 10A. 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 LT1581.
A remote SENSE pin is brought out. This feature virtually
eliminates output voltage variations due to load changes.
Typical load regulation for a load current step of 100mA to
10A, measured at the SENSE pin, is less than 1mV.
The LT1581 has fast transient response, equal to the
LT1584. On fixed voltage devices, the ADJUST pin is
brought out. A small capacitor on the ADJUST 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
Dropout Voltage –
Minimum Power Voltage
TYPICAL APPLICATIO
N
U
OUTPUT
SENSE
ADJ
GND
0.1
μ
F
1581 TA01
10
μ
F
TANT
330
μ
F
OS-CON
2.5V/10A
LT1581-2.5
100
μ
F TANT
AVX TPS
×
7
POWER
3.3V
10A
5V
0.2A
CONTROL
+
+
+
2.5V Microprocessor Supply
OUTPUT CURRENT (A)
M
(
P
O
)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1581 G03
0
1
5
7
4
2
3
6
8
10
9
DATA SHEET LIMIT
T
J
= 25
°
C
T
J
= 125
°
C
INDICATES GUARANTEED TEST POINTS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| LT1584CT-3.3 | 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 |
|---|---|
| LT1581CT7#06 | 制造商:Linear Technology 功能描述:10A Linear Regulator |
| LT1581CT7#06PBF | 制造商:Linear Technology 功能描述:LDO Regulator Pos 1.25V to 4.65V 10A 7-Pin(7+Tab) TO-220 |
| LT1581CT7#45PBF | 制造商:Linear Technology 功能描述:SP-LINREG, 10A Linear Regulator |
| LT1581CT7#PBF | 功能描述:IC LDO REGULATOR 10A ADJ TO220-7 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專(zhuān)用型 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數(shù):2 輸出電壓:最低可調(diào)至 1.2V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:30-TSSOP 包裝:帶卷 (TR) |
| LT1581CT7-2.5 | 功能描述:IC LDO REGULATOR 10A 2.5V TO2207 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專(zhuān)用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
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