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MAX1865UEEP中文資料美信數(shù)據(jù)手冊(cè)PDF規(guī)格書

MAX1865UEEP
廠商型號(hào)

MAX1865UEEP

功能描述

xDSL/Cable Modem Triple/Quintuple Output Power Supplies

文件大小

384.4 Kbytes

頁面數(shù)量

25

生產(chǎn)廠商 Maxim Integrated Products
企業(yè)簡(jiǎn)稱

Maxim美信

中文名稱

美信半導(dǎo)體官網(wǎng)

原廠標(biāo)識(shí)
數(shù)據(jù)手冊(cè)

下載地址一下載地址二到原廠下載

更新時(shí)間

2025-2-25 15:50:00

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MAX1865UEEP規(guī)格書詳情

General Description

The MAX1864/MAX1865 power-supply controllers are designed to address cost-conscious applications such as cable modem Consumer Premise Equipment (CPE), xDSL CPE, and set-top boxes. Operating off a low-cost, unregulated DC supply (such as a wall adapter output), the MAX1864 generates three positive outputs, and the MAX1865 generates four positive outputs and one negative output to provide a cost-effective system power supply.

The MAX1864 includes a current-mode synchronous step-down controller and two positive regulator gain blocks. The MAX1865 has one additional positive gain block and one negative regulator gain block. The main synchronous step-down controller generates a high-current output that is preset to 3.3V or adjustable from 1.236V to 0.8 ? VIN with an external resistive divider. The 100kHz/200kHz operating frequency allows the use of low-cost aluminum-electrolytic capacitors and low-cost power magnetics. Additionally, the MAX1864/MAX1865 step-down controllers sense the voltage across the low-side MOSFET’s on-resistance to efficiently provide the current-limit signal, eliminating the need for costly current-sense resistors.

Features

? 4.5V to 28V Input Voltage Range

? Master DC-DC Step-Down Converter

Preset 3.3V or Adjustable (1.236V to 0.8 ? VIN)

Output Voltage

Fixed-Frequency (100kHz/200kHz) PWM

Controller

No Current-Sense Resistor

Adjustable Current Limit

95 Efficient

? Two (MAX1864)/Four (MAX1865) Analog Gain Blocks

Positive Analog Blocks Drive Low-Cost PNP

Pass Transistors to Build Positive Linear

Regulators

Negative Analog Block (MAX1865) Drives a

Low-Cost NPN Pass Transistor to Build a

Negative Linear Regulator

? Power-Good Indicator

? Soft-Start Ramp for All Positive Regulators

Applications

xDSL, Cable, and ISDN Modems

Set-Top Boxes

Wireless Local Loop

產(chǎn)品屬性

  • 型號(hào):

    MAX1865UEEP

  • 功能描述:

    電流和電力監(jiān)控器、調(diào)節(jié)器

  • RoHS:

  • 制造商:

    STMicroelectronics

  • 產(chǎn)品:

    Current Regulators

  • 電源電壓-最大:

    48 V

  • 電源電壓-最?。?/span>

    5.5 V

  • 工作溫度范圍:

    - 40 C to + 150 C

  • 安裝風(fēng)格:

    SMD/SMT

  • 封裝/箱體:

    HPSO-8

  • 封裝:

    Reel

供應(yīng)商 型號(hào) 品牌 批號(hào) 封裝 庫存 備注 價(jià)格
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絕對(duì)原裝!現(xiàn)貨熱賣!
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原廠代理渠道,每一顆芯片都可追溯原廠;
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22+
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現(xiàn)貨,原廠原裝假一罰十!
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8600
原裝正品,歡迎來電咨詢!
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2016+
QFN
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只做原廠原裝現(xiàn)貨!終端客戶個(gè)別型號(hào)可以免費(fèi)送樣品!
詢價(jià)