參數(shù)資料
型號(hào): LP3873ES-3.3
廠(chǎng)商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): 基準(zhǔn)電壓源/電流源
英文描述: 3A Fast Ultra Low Dropout Linear Regulators
中文描述: 3.3 V FIXED POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PSSO5
封裝: TO-263, 5 PIN
文件頁(yè)數(shù): 13/16頁(yè)
文件大小: 365K
代理商: LP3873ES-3.3
Application Hints
(Continued)
SENSE PIN
In applications where the regulator output is not very close to
the load, LP3876 can provide better remote load regulation
using the SENSE pin.
Figure 2
depicts the advantage of the
SENSE option. LP3873 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
3V with 3A of load current, I
. The LP3876 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.
20060507
FIGURE 1. Error Flag Operation
20060508
FIGURE 2. Improving remote load regulation using LP3876
L
www.national.com
13
相關(guān)PDF資料
PDF描述
LP3873ES-5.0 3A Fast Ultra Low Dropout Linear Regulators
LP3873ESX-1.8 3A Fast Ultra Low Dropout Linear Regulators
LP3873ESX-2.5 3A Fast Ultra Low Dropout Linear Regulators
LP3873ESX-3.3 3A Fast Ultra Low Dropout Linear Regulators
LP3873ESX-5.0 3A Fast Ultra Low Dropout Linear Regulators
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP3873ES-5.0 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(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP3873ES-5.0/NOPB 功能描述:低壓差穩(wěn)壓器 - LDO 3A 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(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP3873ESX-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(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP3873ESX-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(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP3873ESX-2.5 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:3A Fast Ultra Low Dropout Linear Regulators