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LT8641ARUDCMWTRPBF中文資料亞德諾數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)
| 廠商型號(hào) |
LT8641ARUDCMWTRPBF |
| 功能描述 | 65V, 3.5A/5A Peak Synchronous Step-Down Silent Switcher with 2.5μA Quiescent Current |
| 絲印標(biāo)識(shí) | |
| 封裝外殼 | QFN |
| 文件大小 |
860.49 Kbytes |
| 頁(yè)面數(shù)量 |
35 頁(yè) |
| 生產(chǎn)廠商 | Analog Devices |
| 企業(yè)簡(jiǎn)稱 |
AD【亞德諾】 |
| 中文名稱 | 亞德諾半導(dǎo)體技術(shù)有限公司官網(wǎng) |
| 原廠標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-5-12 17:12:00 |
| 人工找貨 | LT8641ARUDCMWTRPBF價(jià)格和庫(kù)存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
LT8641ARUDCMWTRPBF規(guī)格書(shū)詳情
GENERAL DESCRIPTION
The LT?8641A step-down regulator features Silent
Switcher architecture designed to minimize EMI
emissions while delivering high efficiency at frequencies
up to 3MHz. Assembled in a 3mm × 4mm side wettable
QFN, the monolithic construction with integrated power
switches and inclusion of all necessary circuitry yields a
solution with a minimal PCB footprint. An ultralow 2.5μA
quiescent current — with the output in full regulation —
enables applications requiring highest efficiency at very
small load currents. Transient response remains
excellent and output voltage ripple is below 10mVP-P at
any load, from zero to full current.
The LT8641A allows high VIN to low VOUT conversion at
high frequency with a fast minimum top switch on-time
of 35ns. Operation is safe in overload even with a
saturated inductor.
Essential features are included and easy to use: an opendrain
PG pin signals when the output is in regulation.
The SYNC/MODE pin selects between Burst Mode, pulseskipping,
or spread spectrum mode, and also allows
synchronization to an external clock. Soft-start and
tracking functionality are accessed through the TR/SS
pin. An accurate enable threshold can be set using the
EN/UV pin and a resistor at the RT pin programs switch frequency.
FEATURES
? Silent Switcher? Architecture
? Ultralow EMI Emissions
? Spread Spectrum Frequency Modulation
? High Efficiency at High Frequency
? Up to 95 Efficiency at 1MHz, 12VIN to 5VOUT
? Up to 94 Efficiency at 2MHz, 12VIN to 5VOUT
? Wide Input Voltage Range: 3V to 65V
? 3.5A Maximum Continuous, 5A Peak Transient
Output
? Ultralow Quiescent Current Burst Mode?
Operation
? 2.5μA IQ Regulating 12VIN to 3.3VOUT
? Output Ripple < 10mVP-P
? Fast Minimum Switch On-Time: 35ns
? True 2MHz Operation for 24VIN Systems
? Low Dropout Under All Conditions: 130mV at 1A
? Safely Tolerates Inductor Saturation in Overload
? Adjustable and Synchronizable: 200kHz to 3MHz
? Output Soft-Start and Tracking
? Small 18-Lead 3mm × 4mm Side Wettable QFN with Improved Solder Joint Reliability
? AEC-Q100 Qualified for Automotive Applications
APPLICATIONS
? Automotive and Industrial Supplies
? General Purpose Step-Down
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
LINEAR |
1725+ |
QFN |
6528 |
只做原裝正品現(xiàn)貨或訂貨!假一賠十! |
詢價(jià) | ||
LINEAR/凌特 |
24+ |
NA/ |
3587 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開(kāi)票 |
詢價(jià) | ||
ADI(亞德諾) |
24+ |
QFN18 |
7350 |
原裝進(jìn)口,原廠直銷!當(dāng)天可交貨,支持原型號(hào)開(kāi)票! |
詢價(jià) | ||
ADI/亞德諾 |
20+ |
QFN |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價(jià) | ||
LINEAR/凌特 |
21+ |
QFN |
2366 |
百域芯優(yōu)勢(shì) 實(shí)單必成 可開(kāi)13點(diǎn)增值稅 |
詢價(jià) | ||
ADI/亞德諾 |
22+ |
QFN |
30000 |
十七年VIP會(huì)員,誠(chéng)信經(jīng)營(yíng)，一手貨源，原裝正品可零售！ |
詢價(jià) | ||
ADI/亞德諾 |
21+ |
QFN |
13880 |
公司只售原裝,支持實(shí)單 |
詢價(jià) | ||
ADI |
24+ |
20(18)-Lead QFN (3mm x 4mm x 0 |
3660 |
十年信譽(yù),只做全新原裝正品現(xiàn)貨,以優(yōu)勢(shì)說(shuō)話 !! |
詢價(jià) | ||
6000 |
詢價(jià) | ||||||
ADI(亞德諾) |
24+ |
6000 |
全新原廠原裝正品現(xiàn)貨,低價(jià)出售,實(shí)單可談 |
詢價(jià) |
