- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358922 > LP3871EMP-2.5 (NATIONAL SEMICONDUCTOR CORP) 0.8A Fast Ultra Low Dropout Linear Regulators PDF資料下載
參數(shù)資料
| 型號： | LP3871EMP-2.5 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 0.8A Fast Ultra Low Dropout Linear Regulators |
| 中文描述： | 2.5 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5 |
| 封裝： | SOT-223, 5-PIN |
| 文件頁數(shù)： | 13/18頁 |
| 文件大?。?/td> | 364K |
| 代理商： | LP3871EMP-2.5 |
Application Hints
(Continued)
SENSE PIN
In applications where the regulator output is not very close to
the load, LP3874 can provide better remote load regulation
using the SENSE pin.
Figure 2
depicts the advantage of the
SENSE option. LP3871 regulates the voltage at the output
pin. Hence, the voltage at the remote load will be the regu-
lator output voltage minus the drop across the trace resis-
tance. For example, in the case of a 3.3V output, if the trace
resistance is 100m
, the voltage at the remote load will be
3.22V with 0.8Aof load current, I
. The LP3874 regulates
the voltage at the sense pin. Connecting the sense pin to the
remote load will provide regulation at the remote load, as
shown in
Figure 2
. If the sense option pin is not required, the
sense pin must be connected to the V
OUT
pin.
SHUTDOWN OPERATION
A CMOS Logic level signal at the shutdown ( SD) pin will
turn-off the regulator. Pin SD must be actively terminated
through a 10k
pull-up resistor for a proper operation. If this
pin is driven from a source that actively pulls high and low
(such as a CMOS rail to rail comparator), the pull-up resistor
is not required. This pin must be tied to Vin if not used.
20063107
FIGURE 1. Error Flag Operation
20063108
FIGURE 2. Improving remote load regulation using LP3874
L
www.national.com
13
相關PDF資料 |
PDF描述 |
|---|---|
| LP3871EMP-1.8 | Enhanced Product Hex Inverter 14-TSSOP -55 to 125 |
| LP3871ESX-5.0 | 16-Bit Buffer/Driver With 3-State Outputs 48-SSOP -40 to 85 |
| LP3871ESX-3.3 | 0.8A Fast Ultra Low Dropout Linear Regulators |
| LP3871ESX-2.5 | 0.8A Fast Ultra Low Dropout Linear Regulators |
| LP3871 | Enhanced Product Hex Inverter 14-TSSOP -55 to 125 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LP3871EMP-3.3 | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3871EMP-3.3/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 0.8A Low Dropout LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3871EMP-5.0 | 制造商:Texas Instruments 功能描述:IC V REG LDO 0.8A 5.0V SMD 3871 |
| LP3871EMP-5.0/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 0.8A Low Dropout LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3871EMPX-1.8 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:0.8A Fast Ultra Low Dropout Linear Regulators |
發(fā)布緊急采購，3分鐘左右您將得到回復。