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參數(shù)資料
| 型號： | LP3961ET-5.0 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 800mA Fast Ultra Low Dropout Linear Regulators |
| 中文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PZFM5 |
| 封裝： | TO-220, 5 PIN |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 376K |
| 代理商： | LP3961ET-5.0 |
Applications Information
(Continued)
Sense Pin
In applications where the regulator output is not very close to
the load, LP3964 can provide better remote load regulation
using the SENSE pin. Figure 2 depicts the advantage of the
SENSE option. LP3961 regulates the voltage at the output
pin. Hence, the voltage at the remote load will be the regula-
tor 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 800mAmps of load current, I
. The LP3964
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 re-
quired, 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.
DS101129-7
FIGURE 1. Error Flag Operation
DS101129-8
FIGURE 2. Improving remote load regulation using LP3964
L
www.national.com
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相關(guān)PDF資料 |
PDF描述 |
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| LP3961ET-3.3 | 800mA Fast Ultra Low Dropout Linear Regulators |
| LP3962 | 1.5A Fast Ultra Low Dropout Linear Regulators |
| LP3962EMP-1.8 | 1.5A Fast Ultra Low Dropout Linear Regulators |
| LP3962EMP-2.5 | 1.5A Fast Ultra Low Dropout Linear Regulators |
| LP3962ES-2.5 | 1.5A Fast Ultra Low Dropout Linear Regulators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3962 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.5A Fast Ultra Low Dropout Linear Regulators |
| LP3962EMP-1.8 | 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(diào)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 |
| LP3962EMP-1.8 | 制造商:Texas Instruments 功能描述:V REG LDO +1.8V 3962 SOT-223-5 |
| LP3962EMP-1.8/NOPB | 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(diào)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 |
| LP3962EMP-2.5 | 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(diào)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 |
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