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LT8641集成電路(IC)穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

LT8641
廠商型號(hào)

LT8641

參數(shù)屬性

LT8641 封裝/外殼為20-WFQFN,18 引線,裸露焊盤;包裝為管件;類別為集成電路(IC) > 穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器;產(chǎn)品描述:IC REG BUCK ADJ 3.5A 20QFN

功能描述

降壓
65V, 8A Synchronous Step-Down Silent Switcher 2 with 2.5μA Quiescent Current
IC REG BUCK ADJ 3.5A 20QFN

文件大小

2.30606 Mbytes

頁面數(shù)量

30

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)

原廠下載下載地址一下載地址二到原廠下載

更新時(shí)間

2024-11-14 11:28:00

LT8641規(guī)格書詳情

DESCRIPTION

The LT?8645S/LT8646S synchronous step-down regulator

features second generation Silent Switcher architecture

designed to minimize EMI emissions while delivering high

efficiency at high switching frequencies. This includes the

integration of bypass capacitors to optimize all the fast

current loops inside and make it easy to achieve advertised

EMI performance by eliminating layout sensitivity.

The fast, clean, low-overshoot switching edges enable

high efficiency operation even at high switching frequencies,

leading to a small overall solution size. Peak current

mode control with a 40ns minimum on-time allows high

step-down ratios even at high switching frequencies. The

LT8646S has external compensation to enable current

sharing and fast transient response at high switching

frequencies.

Burst Mode? operation enables ultralow standby current

consumption, pulse-skipping mode allows full switching

frequency at lower output loads, or spread spectrum

operation can further reduce EMI emissions.

FEATURES

- Silent Switcher?2 Architecture

- Ultralow EMI Emissions on Any PCB

- Eliminates PCB Layout Sensitivity

- Internal Bypass Capacitors Reduce Radiated EMI

- Optional Spread Spectrum 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: 3.4V to 65V

- Ultralow Quiescent Current Burst Mode Operation

- 2.5μA IQ Regulating 12VIN to 3.3VOUT (LT8645S)

- Output Ripple < 10mVP-P

- External Compensation: Fast Transient Response

and Current Sharing (LT8646S)

- Fast Minimum Switch On-Time: 40ns

- Low Dropout Under All Conditions: 60mV at 1A

- Adjustable and Synchronizable: 200kHz to 2.2MHz

- Peak Current Mode Operation

- Output Soft-Start and Tracking

- Small 32-Lead 6mm × 4mm LQFN Package

- AEC-Q100 Qualified for Automotive Applications

APPLICATIONS

- Automotive and Industrial Supplies

- General Purpose Step-Down

- GSM Power Supplies

LT8641屬于集成電路(IC) > 穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器。亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的LT8641穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC(電源管理集成電路)產(chǎn)品族中的產(chǎn)品是元器件級(jí)設(shè)備,用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件,設(shè)備提供的電力會(huì)通過該元件。

產(chǎn)品屬性

更多
  • 產(chǎn)品編號(hào):

    LT8641EUDC#PBF

  • 制造商:

    Analog Devices Inc.

  • 類別:

    集成電路(IC) > 穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器

  • 包裝:

    管件

  • 功能:

    降壓

  • 輸出配置:

  • 拓?fù)洌?/span>

    降壓

  • 輸出類型:

    可調(diào)式

  • 輸出數(shù):

    1

  • 電壓 - 輸入(最小值):

    3V

  • 電壓 - 輸入(最大值):

    65V

  • 電壓 - 輸出(最小值/固定):

    0.8V

  • 電壓 - 輸出(最大值):

    64.35V

  • 電流 - 輸出:

    3.5A

  • 頻率 - 開關(guān):

    210kHz ~ 2MHz

  • 同步整流器:

  • 工作溫度:

    -40°C ~ 125°C(TJ)

  • 安裝類型:

    表面貼裝型

  • 封裝/外殼:

    20-WFQFN,18 引線,裸露焊盤

  • 供應(yīng)商器件封裝:

    20-QFN(3x4)

  • 描述:

    IC REG BUCK ADJ 3.5A 20QFN

供應(yīng)商 型號(hào) 品牌 批號(hào) 封裝 庫存 備注 價(jià)格
LONTIUM
22+
BGA144
3900
原裝優(yōu)勢(shì)!公司現(xiàn)貨供應(yīng)!
詢價(jià)
LONTIUM
2016+
QFP100
1800
只做原裝,假一罰十,公司可開17%增值稅發(fā)票!
詢價(jià)
龍迅
2023+
QFN128
6000
全新原裝深圳倉庫現(xiàn)貨有單必成
詢價(jià)
LT
21+
QFN
9852
只做原裝正品現(xiàn)貨!或訂貨假一賠十!
詢價(jià)
ADI/亞德諾
22+
QFN-18
13000
原裝正品
詢價(jià)
ADI/亞德諾
22+
QFN-18
9600
原裝現(xiàn)貨,優(yōu)勢(shì)供應(yīng),支持實(shí)單!
詢價(jià)
ADI(亞德諾)/LINEAR
2021+
QFN-18
499
詢價(jià)
ADI
21+
8080
只做原裝,質(zhì)量保證
詢價(jià)
LT
21+
QFN
12588
原裝現(xiàn)貨,實(shí)單請(qǐng)給TP
詢價(jià)
ADI/亞德諾
20+
20(18)-LeadQFN(3mmx4
33680
ADI全新原裝-可開原型號(hào)增稅票
詢價(jià)