參數(shù)資料
型號(hào)： LM2670TADJEP
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PZFM7
封裝： PLASTIC, TO-220, 7 PIN
文件頁(yè)數(shù)： 3/25頁(yè)
文件大?。?/td> 465K
代理商： LM2670TADJEP
Application Hints (Continued)
DESIGN CONSIDERATIONS
Power supply design using the LM2670EP is greatly simpli-
fied by using recommended external components. A wide
range of inductors, capacitors and Schottky diodes from
several manufacturers have been evaluated for use in de-
signs that cover the full range of capabilities (input voltage,
output voltage and load current) of the LM2670EP. A simple
design procedure using nomographs and component tables
provided in this data sheet leads to a working design with
very little effort. Alternatively, the design software, LM267X
Made Simple (version 6.0), can also be used to provide
instant component selection, circuit performance calcula-
tions for evaluation, a bill of materials component list and a
circuit schematic.
The individual components from the various manufacturers
called out for use are still just a small sample of the vast
array of components available in the industry. While these
components are recommended, they are not exclusively the
only components for use in a design. After a close compari-
son of component specifications, equivalent devices from
other manufacturers could be substituted for use in an ap-
plication.
Important considerations for each external component and
an explanation of how the nomographs and selection tables
were developed follows.
INDUCTOR
The inductor is the key component in a switching regulator.
For efficiency the inductor stores energy during the switch
ON time and then transfers energy to the load while the
switch is OFF.
Nomographs are used to select the inductance value re-
quired for a given set of operating conditions. The nomo-
graphs assume that the circuit is operating in continuous
mode (the current flowing through the inductor never falls to
zero). The magnitude of inductance is selected to maintain a
20097707
FIGURE 1. Basic circuit for fixed output voltage applications.
20097708
FIGURE 2. Basic circuit for adjustable output voltage applications
LM2670EP
Enhanced
Plastic
www.national.com
11
相關(guān)PDF資料
PDF描述
LM2670T-5.0EP 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PZFM7
LM2670S-12EP 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PSSO7
LM2670SD-5.0EP 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO14
LM2670SD-3.3EP 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO14
LM2670T-12EP 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PZFM7
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2671 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
LM2671_07 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671LD-12 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671LD-12/NOPB 功能描述:IC REG BUCK 12V 0.5A 16LLP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:SIMPLE SWITCHER® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:125mA 同步整流器:無(wú) 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應(yīng)商設(shè)備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR
LM2671LD-3.3 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
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

*
*
*