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L3751中文資料
L3751數(shù)據(jù)手冊(cè)規(guī)格書(shū)PDF詳情
Description
The 6 V to 75 V wide input voltage range L3751 synchronous buck controller features
extreme voltage conversion ratio over switching frequency range (100 kHz - 1 MHz)
thanks to 40 nsec minimum conduction time.
The diode emulation (DEM) implements pulse skipping mode that maximizes the
efficiency at light-load giving controlled output voltage ripple. The forced PWM
(FPWM) over the load range makes the switching frequency constant and minimizes
the output voltage ripple.
The Power Good open collector output validates the regulated output voltage for
monitoring and it is useful to implement output voltage sequencing for digital ICs
during the power-up phase.
An embedded gate driver minimizes the number of external components and it is
designed for standard VTH MOSFET.
Embedded protections–output overcurrent, input voltage UVLO, internal voltage
monitoring, thermal shutdown - feature controlled and safe operation for critical
environments in telecom, networking and industrial applications.
The device is available in a QFN 20 leads 3.5 x 4.5 mm package with wettable flanks.
Features
? Wide 6 V to 75 V input voltage range
? Adjustable output voltage from 0.8 V to 60 V
? 100 kHz - 1 MHz switching frequency range
? 40 nsec minimum on-time for extreme duty ratio
? Low dropout operation during line transient
? Adjustable soft-start or input voltage tracking
? Pulse skipping or forced PWM operation at light load
? Synchronization
? Adjustable precision enable
? Power Good open collector output validates VOUT
? 7.5 V gate drivers for standard VTH MOSFETs
? Constant current protection with hiccup mode
? Precision or lossless programmable current sensing
? Improved line transient response
? Input voltage undervoltage lockout
? Internal voltage monitoring
? Thermal protection
? Operating junction temperature range: -40 °C to 150 °C
Applications
? Telecom, networking and industrial applications
? Failsafe systems
? Unregulated 24 V and 48 V input voltage bus
? Conversion from high voltage battery to 12 V and 5 V rail
供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
---|---|---|---|---|---|---|---|
STMicroelectronics |
2025 |
5891 |
全新、原裝 |
||||
ST(意法半導(dǎo)體) |
24+ |
QFN-20L(3 |
1048 |
特價(jià)優(yōu)勢(shì)庫(kù)存質(zhì)量保證穩(wěn)定供貨 |
|||
ST(意法半導(dǎo)體) |
24+ |
QFN-20L(3 |
5204 |
百分百原裝正品,可原型號(hào)開(kāi)票 |
|||
ST/意法半導(dǎo)體 |
25+ |
原廠封裝 |
10280 |
原廠授權(quán)代理,專(zhuān)注軍工、汽車(chē)、醫(yī)療、工業(yè)、新能源! |
|||
ST/意法半導(dǎo)體 |
25+ |
原廠封裝 |
9999 |
||||
ST/意法半導(dǎo)體 |
25+ |
原廠封裝 |
10280 |
||||
N/A |
2447 |
SMD |
100500 |
一級(jí)代理專(zhuān)營(yíng)品牌!原裝正品,優(yōu)勢(shì)現(xiàn)貨,長(zhǎng)期排單到貨 |
|||
ST |
24+ |
TSSOP |
6430 |
原裝現(xiàn)貨/歡迎來(lái)電咨詢(xún) |
|||
ST |
2025+ |
TSSOP |
3557 |
全新原廠原裝產(chǎn)品、公司現(xiàn)貨銷(xiāo)售 |
|||
TI |
02/03+ |
SOP8 |
1960 |
全新原裝100真實(shí)現(xiàn)貨供應(yīng) |
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STMicroelectronics 意法半導(dǎo)體集團(tuán)
意法半導(dǎo)體 (STMicroelectronics) 成立于1987年,總部位于瑞士日內(nèi)瓦和法國(guó)巴黎,是一家全球領(lǐng)先的半導(dǎo)體公司。意法半導(dǎo)體專(zhuān)注于設(shè)計(jì)、制造和銷(xiāo)售各種半導(dǎo)體解決方案,產(chǎn)品廣泛應(yīng)用于汽車(chē)、工業(yè)、消費(fèi)電子、通信等領(lǐng)域。 意法半導(dǎo)體的產(chǎn)品包括微控制器、模擬集成電路、功率半導(dǎo)體、傳感器等。公司擁有多個(gè)研發(fā)中心和生產(chǎn)基地,致力于技術(shù)創(chuàng)新和研發(fā)投入。意法半導(dǎo)體在全球范圍內(nèi)擁有廣泛的客戶(hù)群和合作伙伴,為客戶(hù)提供高品質(zhì)的產(chǎn)品和解決方案。 公司的使命是通過(guò)半導(dǎo)體技術(shù)推動(dòng)智能化和可持續(xù)發(fā)展,助力客戶(hù)取得成功。意法半導(dǎo)體不僅注重商業(yè)成功,還注重社會(huì)責(zé)任、環(huán)境保護(hù)和可持續(xù)經(jīng)營(yíng)。企業(yè)價(jià)值觀包括創(chuàng)新、尊重