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MAX1864UEEE中文资料PDF规格书

MAX1864UEEE
厂商型号

MAX1864UEEE

功能描述

xDSL/Cable Modem Triple/Quintuple Output Power Supplies

文件大小

384.4 Kbytes

页面数量

25

生产厂商 MaximIntegrated
企业简称

Maxim美信半导体

中文名称

美信半导体官网

原厂标识
数据手册

下载地址一下载地址二

更新时间

2024-6-15 16:16:00

MAX1864UEEE规格书详情

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

产品属性

  • 型号:

    MAX1864UEEE

  • 功能描述:

    电流和电力监控器、调节器

  • RoHS:

  • 制造商:

    STMicroelectronics

  • 产品:

    Current Regulators

  • 电源电压-最大:

    48 V

  • 电源电压-最小:

    5.5 V

  • 工作温度范围:

    - 40 C to + 150 C

  • 安装风格:

    SMD/SMT

  • 封装/箱体:

    HPSO-8

  • 封装:

    Reel

供应商 型号 品牌 批号 封装 库存 备注 价格
MAXIM-美信
24+25+/26+27+
QSOP-20
6328
一一有问必回一特殊渠道一有长期订货一备货HK仓库
询价
MAX
22+
SSOP
8200
原装现货库存.价格优势
询价
MAXIM
22+
6980
原装现货,可开13%税票
询价
ADI(亚德诺)/MAXIM(美信)
23+
7350
原装进口,原厂直销!当天可交货,支持原型号开票!
询价
Maxim
22+
20QSOP
9000
原厂渠道,现货配单
询价
Maxim
23+
20QSOP
4994
原装现货
询价
MAXIM/美信
22+
MSOP10
9600
原装现货,优势供应,支持实单!
询价
Analog Devices Inc./Maxim Inte
24+
20-SSOP(0.154,3.90mm 宽)
9350
独立分销商,公司只做原装,诚心经营,免费试样正品保证
询价
Maxim Integrated
22+
NA
500000
万三科技,秉承原装,购芯无忧
询价
Maxim
/
NA
610
代理渠道.实单必成
询价