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參數(shù)資料
| 型號(hào)： | LT1084CP-5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Parallel-Load 8-Bit Serial Shift Registers 16-SOIC 0 to 70 |
| 中文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 1.5 V DROPOUT, PSFM3 |
| 封裝： | PLASTIC, TO-247, TO-3, 3 PIN |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大?。?/td> | 287K |
| 代理商： | LT1084CP-5 |
7
LT1083/84/85 Fixed
BLOCK DIAGRA
M
W
APPLICATIO
S I
N
FOR
ATIO
U
The LT1083 family of three-terminal regulators are easy to
use and have all the protection features that are expected
in high performance voltage regulators. They are short
circuit protected, have safe area protection as well as
thermal shutdown to turn off the regulator should the
temperature exceed about 165
°
C.
These regulators offer lower dropout voltage and more
precise reference tolerance. Further, the reference stabil-
ity with temperature is improved over older types of
regulators. The only circuit difference between using the
LT1083 family and older regulators is that they require an
output capacitor for stability.
W
U
Stability
The circuit design used in the LT1083 family requires the
use of an output capacitor as part of the device frequency
compensation. For all operating conditions, the addition of
150
μ
F aluminum electrolytic or a 22
μ
F solid tantalum on
the output will ensure stability. Normally capacitors much
smaller than this can be used with the LT1083. Many
different types of capacitors with widely varying charac-
teristics are available. These capacitors differ in capacitor
tolerance (sometimes ranging up to
±
100%), equivalent
series resistance, and capacitance temperature coeffi-
cient. The 150
μ
F or 22
μ
F values given will ensure stability.
Normally, capacitor values on the order of 100
μ
F are used
in the output of many regulators to ensure good transient
response with heavy load current changes. Output capaci-
tance can be increased without limit and larger values of
output capacitance further improve stability and transient
response of the LT1083 regulators.
Another possible stability problem that can occur in mono-
lithic IC regulators is current limit oscillations. These can
occur because in current limit the safe area protection
exhibits a negative impedance. The safe area protection
decreases the current limit as the input-to-output voltage
increases.That is the equivalent of having a negitive resis-
tance since increasing voltage causes current to decrease.
Negitive resistance during current limit is not unique to the
LT1083 series and has been present on all power IC
regulators. The value of negative resistance is a function
of how fast the current limit is folded back as input-to-
THERMAL
LIMIT
GND
LT1083/4/5 BD
V
IN
–
+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1084CT-5 | Parallel-Load 8-Bit Serial Shift Registers 16-SOIC 0 to 70 |
| LT1085 | Parallel-Load 8-Bit Serial Shift Registers 16-SOIC 0 to 70 |
| LT1085CT-5 | Parallel-Load 8-Bit Serial Shift Registers 16-PDIP 0 to 70 |
| LT1085M | Parallel-Load 8-Bit Serial Shift Registers 16-SO 0 to 70 |
| LT1084CP5 | IC-VOLTAGE REGULATOR +5V |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1084CP5#PBF | 制造商:Linear Technology 功能描述:IC V REG LDO +5.0V 1084 TO-3P-3 制造商:Linear Technology 功能描述:IC, V REG LDO +5.0V, 1084, TO-3P-3 |
| LT1084CP-5#PBF | 功能描述:IC REG LDO 5V 5A TO-3P-3 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3V 輸入電壓:2.3 V ~ 5.5 V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.035V @ 150mA 穩(wěn)壓器數(shù)量:2 電流 - 輸出:150mA 電流 - 限制（最小）:300mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 裸露焊盤，6-TMLF? 供應(yīng)商設(shè)備封裝:6-TMLF?（1.6x1.6） 包裝:Digi-Reel® 產(chǎn)品目錄頁(yè)面:1104 (CN2011-ZH PDF) 其它名稱:576-3018-6 |
| LT1084CP-5PBF | 制造商:Linear Technology 功能描述:LT1084CP-5PBF |
| LT1084CPPBF | 制造商:Linear Technology 功能描述:LT1084CPPBF |
| LT1084CT | 功能描述:IC REG LDO ADJ 5A TO-220-3 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3V 輸入電壓:2.3 V ~ 5.5 V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.035V @ 150mA 穩(wěn)壓器數(shù)量:2 電流 - 輸出:150mA 電流 - 限制（最?。?300mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 裸露焊盤，6-TMLF? 供應(yīng)商設(shè)備封裝:6-TMLF?（1.6x1.6） 包裝:Digi-Reel® 產(chǎn)品目錄頁(yè)面:1104 (CN2011-ZH PDF) 其它名稱:576-3018-6 |
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