參數(shù)資料
型號(hào)： LT3580MPMS8E#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 2.8 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO8
封裝： LEAD FREE, PLASTIC, MSOP-8
文件頁(yè)數(shù)： 8/28頁(yè)
文件大?。?/td> 289K
代理商： LT3580MPMS8E#TRPBF
LT3580
16
3580fg
APPLICATIONS INFORMATION
C2, for best load regulation. You can tie the local ground
into the system ground plane at the C3 ground terminal.
The cut ground copper at D1’s cathode is essential to
obtain low noise. This important layout issue arises due
to the chopped nature of the currents flowing in Q1 and
D1. If they are both tied directly to the ground plane before
being combined, switching noise will be introduced into
the ground plane. It is almost impossible to get rid of this
noise, once present in the ground plane. The solution
is to tie D1’s cathode to the ground pin of the LT3580
before the combined currents are dumped in the ground
plane as drawn in Figure 2, Figure 12 and Figure 13. This
single layout technique can virtually eliminate high
frequency “spike” noise, so often present on switching
regulator outputs.
Figure 8. High Speed “Chopped” Switching Path for Boost Topology
Board layout also has a significant effect on thermal re-
sistance. The exposed package ground pad is the copper
plate that runs under the LT3580 die. This is a good thermal
path for heat out of the package. Soldering the pad onto
the board reduces die temperature and increases the power
capability of the LT3580. Provide as much copper area as
possible around this pad. Adding multiple feedthroughs
around the pad to the ground plane will also help. Figures
9 and 10 show the recommended component placement
for the boost and SEPIC configurations, respectively.
Layout Hints for Inverting Topology
Figure 11 shows recommended component placement for
the dual inductor inverting topology. Input bypass capaci-
tor, C1, should be placed close to the LT3580, as shown.
The load should connect directly to the output capacitor,
3580 F08
VOUT
L1
SW
GND
LT3580
D1
C2
C1
VIN
HIGH
FREQUENCY
SWITCHING
PATH
LOAD
相關(guān)PDF資料
PDF描述
LT3582EUD-12#PBF 0.72 A SWITCHING REGULATOR, PQCC16
LT3582EUD-5#TRPBF 0.72 A SWITCHING REGULATOR, PQCC16
LT3582EUD#TRPBF 0.72 A SWITCHING REGULATOR, PQCC16
LT3582EUD-12#TRPBF 0.72 A SWITCHING REGULATOR, PQCC16
LT3582EUD#PBF 0.72 A SWITCHING REGULATOR, PQCC16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT3581 制造商:LINER 制造商全稱:Linear Technology 功能描述:3.3A Boost/Inverting DC/DC Converter with Fault Protection
LT3581EDE#PBF 功能描述:IC REG MULTI CONFIG ADJ 14DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開(kāi)關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁(yè)面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
LT3581EDE#TRPBF 功能描述:IC REG MULTI CONFIG ADJ 14DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤(pán) 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤(pán)
LT3581EDE-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:3.3A Boost/Inverting DC/DC Converter with Fault Protection
LT3581EDE-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:3.3A Boost/Inverting DC/DC Converter with Fault Protection
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*