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參數(shù)資料
| 型號： | LT1121AIS8-3.3 |
| 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： | 3.3 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SOP-8 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 269K |
| 代理商： | LT1121AIS8-3.3 |
11
LT1121/LT1121-3.3/LT1121-5
U
S
A
When the input of the LT1121 is forced to a voltage below
its nominal output voltage and its output is held high, the
reverse output current will still follow the curve in Figure
2. This condition can occur if the input of the LT1121 is
connected to a discharged (low voltage) battery and the
output is held up by either a backup battery or by a second
regulator circuit. When the input pin is forced below the
output pin or the output pin is pulled above the input pin,
the input current will typically drop to less than 2
μ
A (see
Figure 3). The state of the shutdown pin will have no effect
on the reverse output current when the output is pulled
above the input.
O
PPLICATI
U
U
INPUT VOLTAGE (V)
0
I
μ
A
5
4
3
2
1
0
4
1121 F03
1
2
3
5
V
OUT
= 3.3V (LT1121-3.3)
V
OUT
= 5V (LT1121-5)
Figure 3. Input Current
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Table 6. Fault Conditions
INPUT PIN
< V
OUT
(Nominal)
SHDN PIN
Open (Hi)
OUTPUT PIN
Forced to V
OUT
(Nominal)
Reverse Output Current
≈
15
μ
A (See Figure 2)
Input Current
≈
1
μ
A (See Figure 3)
Reverse Output Current
≈
15
μ
A (See Figure 2)
Input Current
≈
1
μ
A (See Figure 3)
Reverse Output Current
≈
15
μ
A (See Figure 2)
Reverse Output Current
≈
15
μ
A (See Figure 2)
Output Current = 0
Output Current = 0
Output Current = Short-Circuit Current
Output Current = 0
< V
OUT
(Nominal)
Grounded
Forced to V
OUT
(Nominal)
Open
Open
≤
0.8V
≤
0.8V
> 1.5V
Open (Hi)
Grounded
Open (Hi)
Grounded
Open (Hi)
Grounded
Forced to V
OUT
(Nominal)
Forced to V
OUT
(Nominal)
≤
0V
≤
0V
≤
0V
≤
0V
–30V < V
IN
< 30V
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| LT1121AIS8-5 | 功能描述:IC REG LDO 5V .15A 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:800 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:2.5V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.7V @ 4A 穩(wěn)壓器數(shù)量:1 電流 - 輸出:4A 電流 - 限制（最?。?4.2A 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-263-6，D²Pak（5 引線+接片），TO-263BA 供應(yīng)商設(shè)備封裝:TO-263-5 包裝:帶卷 (TR) 其它名稱:AP1184K525L-13AP1184K525LDITR |
| LT1121AIS8-5#PBF | 功能描述:IC REG LDO 5V .15A 8-SOIC 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:8V 輸入電壓:10.5 V ~ 23 V 電壓 - 壓降（標(biāo)準(zhǔn)）:1.7V @ 40mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:100mA（最小值） 電流 - 限制（最?。?- 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1075 (CN2011-ZH PDF) 其它名稱:296-24390-1 |
| LT1121AIS8-5#TR | 功能描述:IC REG LDO 5V .15A 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:800 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:2.5V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.7V @ 4A 穩(wěn)壓器數(shù)量:1 電流 - 輸出:4A 電流 - 限制（最?。?4.2A 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-263-6，D²Pak（5 引線+接片），TO-263BA 供應(yīng)商設(shè)備封裝:TO-263-5 包裝:帶卷 (TR) 其它名稱:AP1184K525L-13AP1184K525LDITR |
| LT1121AIS8-5#TRPBF | 功能描述:IC REG LDO 5V .15A 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:800 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:2.5V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.7V @ 4A 穩(wěn)壓器數(shù)量:1 電流 - 輸出:4A 電流 - 限制（最?。?4.2A 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-263-6，D²Pak（5 引線+接片），TO-263BA 供應(yīng)商設(shè)備封裝:TO-263-5 包裝:帶卷 (TR) 其它名稱:AP1184K525L-13AP1184K525LDITR |
| LT1121AIS8PBF | 制造商:Linear Technology 功能描述:LDO Regulator Adj. 150mA Shutdown SOIC8 |
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