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參數(shù)資料
| 型號： | LT1121CN8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70 |
| 中文描述： | 3.8 V-30 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 269K |
| 代理商： | LT1121CN8 |
1
LT1121/LT1121-3.3/LT1121-5
Micropower Low Dropout
Regulators with Shutdown
D
U
ESCRIPTIO
S
FEATURE
I
0.4V Dropout Voltage
I
150mA Output Current
I
30
μ
A Quiescent Current
I
No Protection Diodes Needed
I
Adjustable Output from 3.8V to 20V
I
3.3V and 5V Fixed Output Voltages
I
Controlled Quiescent Current in Dropout
I
Shutdown
I
16
μ
A Quiescent Current in Shutdown
I
Stable with 0.33
μ
F Output Capacitor
I
Reverse Battery Protection
I
No Reverse Current with Input Low
I
Thermal Limiting
The LT1121/LT1121-3.3/LT1121-5 are micropower low
dropout regulators with shutdown. These devices are
capable of supplying
150mA of output current with a
dropout voltage of 0.4V. Designed for use in battery-
powered systems, the low quiescent current, 30
μ
A oper-
ating and 16
μ
A in shutdown, makes them an ideal choice.
The quiescent current is well-controlled; it does not rise in
dropout as it does with many other low dropout PNP
regulators.
Other features of the LT1121/LT1121-3.3/LT1121-5 in-
clude the ability to operate with very small output capaci-
tors. They are stable with only 0.33
μ
F on the output while
most older devices require between 1
μ
F and 100
μ
F for
stability. Small ceramic capacitors can be used, enhanc-
ing manufacturability. Also the input may be connected to
ground or a reverse voltage without reverse current flow
from output to input. This makes the LT1121 series ideal
for backup power situations where the output is held high
and the input is at ground or reversed. Under these
conditions only 16
μ
A will flow from the output pin to
ground.
U
S
A
O
PPLICATI
I
Low Current Regulator
I
Regulator for Battery-Powered Systems
I
Post Regulator for Switching Supplies
U
A
O
PPLICATI
TYPICAL
5V Battery-Powered Supply with Shutdown
OUTPUT CURRENT (mA)
0
D
0.3
0.4
0.5
60
100
160
0.2
0.1
0
20
40
80
120 140
LT1121 TA02
Dropout Voltage
IN
OUT
LT1121-3.3
GND
3.3V OUT
150mA
1
μ
F
SOLID TANTALUM
5V
8
+
5
1
3
LT1121 TA01
V
SHDN
(PIN 5)
< 0.25
> 2.8
NC
OUTPUT
OFF
ON
ON
SHDN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1121CN8-5 | Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70 |
| LT1121CS8 | Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70 |
| LT1121CS8-5 | Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70 |
| LT1121CST-3.3 | Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70 |
| LT1121CST-5 | Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1121CN8#PBF | 功能描述:IC REG LDO ADJ .15A 8-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品培訓(xùn)模塊:MIC5365/66 Ultra-small LDO Regulators 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:最高 5.5V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.155V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最?。?200mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:4-UDFN 裸露焊盤，4-TMLF? 供應(yīng)商設(shè)備封裝:4-TMLF?（1x1） 包裝:Digi-Reel® 其它名稱:576-3192-6 |
| LT1121CN8-3.3 | 功能描述:IC REG LDO 3.3V .15A 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品培訓(xùn)模塊:More Information on LDOs 標(biāo)準(zhǔn)包裝:50 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.3V 輸入電壓:最高 15V 電壓 - 壓降（標(biāo)準(zhǔn)）:1.1V @ 800mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:800mA 電流 - 限制（最?。?800mA 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-263-4，D²Pak（3 引線+接片），TO-263AA 供應(yīng)商設(shè)備封裝:D2PAK-3 包裝:管件 |
| LT1121CN8-3.3#PBF | 功能描述:IC REG LDO 3.3V .15A 8-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品培訓(xùn)模塊:MIC5365/66 Ultra-small LDO Regulators 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:最高 5.5V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.155V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最小）:200mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:4-UDFN 裸露焊盤，4-TMLF? 供應(yīng)商設(shè)備封裝:4-TMLF?（1x1） 包裝:Digi-Reel® 其它名稱:576-3192-6 |
| LT1121CN833 | 制造商:Linear Technology 功能描述: |
| LT1121CN8-5 | 功能描述:IC REG LDO 5V .15A 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品培訓(xùn)模塊:More Information on LDOs 標(biāo)準(zhǔn)包裝:50 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.3V 輸入電壓:最高 15V 電壓 - 壓降（標(biāo)準(zhǔn)）:1.1V @ 800mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:800mA 電流 - 限制（最?。?800mA 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-263-4，D²Pak（3 引線+接片），TO-263AA 供應(yīng)商設(shè)備封裝:D2PAK-3 包裝:管件 |
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