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參數(shù)資料
| 型號(hào)： | LT1528CQ |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | 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： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.85 V DROPOUT, PSSO5 |
| 封裝： | PLASTIC, D2PAK-5 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大小： | 248K |
| 代理商： | LT1528CQ |
10
LT1528
APPLICATIO
S I
FOR
ATIO
U
The reverse output current will follow the curve in Figure
3 when the input is pulled to ground. This current flows
through the Output pin to ground. The state of the
Shutdown pin will have no effect on output current when
the input pin is pulled to ground.
In some applications it may be necessary to leave the input
on the LT1528 unconnected when the output is held high.
This can happen when the LT1528 is powered from a
rectified AC source. If the AC source is removed, then the
input of the LT1528 is effectively left floating. The reverse
output current also follows the curve in Figure 3 if the input
pin is left open. The state of the Shutdown pin will have no
effect on the reverse output current when the input pin is
floating.
W
U
U
When the input of the LT1528 is forced to a voltage below
its nominal output voltage and its output is held high, the
output current will follow the curve shown in Figure 3. This
can happen if the input of the LT1528 is connected to a low
voltage and the output is held up by a second regulator
circuit. When the input pin is forced below the 0utput 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 4).
The state of the Shutdown pin will have no effect on the
reverse output current when the output is pulled above the
input.
Figure 3. Reverse Output Current
OUTPUT VOLTAGE (V)
0
O
μ
A
1000
900
800
700
600
500
400
300
200
100
0
8
LT1528 F03
2
1
3
5
7
9
4
6
10
T
J
= 25
°
C, V
IN
= 0V
V
OUT
=V
SENSE
CURRENT FLOWS
INTO DEVICE
Figure 4. Input Current
INPUT VOLTAGE (V)
0
0
I
μ
A
2
5
1.0
2.0
2.5
LT1528 F04
1
4
3
0.5
1.5
3.0
3.5
V
OUT
= 3.3V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1528CQ#PBF | 功能描述:IC REG LDO 3.3V/ADJ 3A DDPAK-5 RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線(xiàn)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(lèi)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(yè)面:1075 (CN2011-ZH PDF) 其它名稱(chēng):296-24390-1 |
| LT1528CQ#PBF | 制造商:Linear Technology 功能描述:Linear Voltage Regulator IC 制造商:Linear Technology 功能描述:IC, ADJ LDO REG, 3.3V TO 14V 3A D2-PAK-5 |
| LT1528CQ#TR | 功能描述:IC REG LDO 3.3V/ADJ 3A DDPAK5 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線(xiàn)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(lèi)型:表面貼裝 封裝/外殼:6-UFDFN 裸露焊盤(pán)，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(chēng):576-3018-6 |
| LT1528CQ#TRPBF | 功能描述:IC REG LDO 3.3V/ADJ 3A DDPAK-5 RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線(xiàn)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(lèi)型:表面貼裝 封裝/外殼:6-UFDFN 裸露焊盤(pán)，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(chēng):576-3018-6 |
| LT1528CT | 功能描述:IC REG LDO 3.3V/ADJ 3A TO220-5 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線(xiàn)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(lèi)型:表面貼裝 封裝/外殼:6-UFDFN 裸露焊盤(pán)，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(chēng):576-3018-6 |
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