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參數(shù)資料
| 型號(hào)： | LT1121CZ-5 |
| 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： | 5 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PBCY3 |
| 封裝： | PLASTIC, TO-92, 3 PIN |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 269K |
| 代理商： | LT1121CZ-5 |
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 |
|---|---|
| LT1121IN8 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LT1121IN8-3.3 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LT1121IN8-5 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LT1121IS8 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LT1121IZ-5 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1121CZ-5#PBF | 功能描述:IC REG LDO 5V .15A TO92-3 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 |
| LT1121CZ-5#PBF | 制造商:Linear Technology 功能描述:Linear Voltage Regulator IC 制造商:Linear Technology 功能描述:IC, LDO VOLT REG, 5V, 150mA, TO-92-3 |
| LT1121CZ-5#TR | 功能描述:IC REG LDO 5V .15A TO92-3 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:3.3V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.1V @ 200mA 穩(wěn)壓器數(shù)量:2 電流 - 輸出:300mA 電流 - 限制（最?。?350mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-UFQFN 供應(yīng)商設(shè)備封裝:8-MLPQ-UT（1.5x1.5） 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1358 (CN2011-ZH PDF) 其它名稱:SC560HULCT |
| LT1121CZ-5#TRPBF | 功能描述:IC REG LDO 5V .15A TO92-3 RoHS:是 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:3.3V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.1V @ 200mA 穩(wěn)壓器數(shù)量:2 電流 - 輸出:300mA 電流 - 限制（最?。?350mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-UFQFN 供應(yīng)商設(shè)備封裝:8-MLPQ-UT（1.5x1.5） 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1358 (CN2011-ZH PDF) 其它名稱:SC560HULCT |
| LT1121CZ-5TR | 制造商:Linear Technology 功能描述: |
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