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LR645集成电路(IC)的线性+开关稳压器规格书PDF中文资料

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厂商型号

LR645

参数属性

LR645 封装/外壳为8-SOIC(0.154",3.90mm 宽);包装为卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带;类别为集成电路(IC)的线性+开关稳压器;产品描述:IC REG LINEAR POS ADJ 3MA 8SOIC

功能描述

High Input Voltage SMPS Start-up / Linear Regulator

封装外壳

8-SOIC(0.154",3.90mm 宽)

文件大小

322.03 Kbytes

页面数量

4

生产厂商

SUTEX

网址

网址

数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-12-24 20:29:00

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LR645规格书详情

General Description

The Supertex LR645 is a high input voltage, low output current linear regulator. It has a 3-terminal fi xed output voltage version available in TO-92, TO-220 and SOT-89 packages, as well as an adjustable voltage version available in an 8- lead SOIC package. The 3-terminal version functions like any other low voltage 3-terminal regulator except it allows the use of much higher input voltages. When used in a SMPS startup circuit, it eliminates the need for large power resistors. In this application, current is drawn from the high voltage line only during start-up. Only leakage current fl ows after start-up, thereby reducing the continuous power dissipation to a few milliwatts.

特性 Features

► Accepts inputs from 15V to 450V

► Output currents up to 3.0mA continuous, 30mA peak

► Supply current typically 50µA

► Line regulation typically 0.1mV/V

► Output can be trimmed from 8.0V to 12V

► Output current can be increased to 150mA with external FET

Applications

► Off-line SMPS startup circuits (pulse loads)

► Low power off-line regulators

► Regulators for noisy inputs

产品属性

  • 产品编号:

    LR645LG-G

  • 制造商:

    Microchip Technology

  • 类别:

    集成电路(IC) > 线性 + 开关稳压器

  • 包装:

    卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带

  • 输出配置:

  • 输出类型:

    可调式

  • 电压 - 输入(最大值):

    450V

  • 电压 - 输出(最小值/固定):

    8V

  • 电压 - 输出(最大值):

    12V

  • 电流 - 输出:

    3mA

  • PSRR:

    60dB(120Hz)

  • 工作温度:

    -55°C ~ 155°C

  • 安装类型:

    表面贴装型

  • 封装/外壳:

    8-SOIC(0.154",3.90mm 宽)

  • 供应商器件封装:

    8-SOIC

  • 描述:

    IC REG LINEAR POS ADJ 3MA 8SOIC

供应商 型号 品牌 批号 封装 库存 备注 价格
MICROCHIP/美国微芯
24+
TO-92(TO-92-3)
6000
全新原装深圳仓库现货有单必成
询价
SUPERTEX
22+
TO-92
100000
代理渠道/只做原装/可含税
询价
Supertex
20+
TO-92
65790
原装优势主营型号-可开原型号增税票
询价
Microchip
24+
TO226-3
10000
全新原厂原装,进口正品现货,正规渠道可含税!!
询价
SUPERTEX
24+
SOT-89-3
6230
只做原装正品
询价
SUPERTEXINC
23+
TO-92
12800
正规渠道,只有原装!
询价
SIPERTEX
SOP8
9850
一级代理 原装正品假一罚十价格优势长期供货
询价
SUPERT
22+
SOT89
30000
十七年VIP会员,诚信经营,一手货源,原装正品可零售!
询价
Microchip(微芯)
23+
NA
20094
正纳10年以上分销经验原装进口正品做服务做口碑有支持
询价
MICROCHIP/美国微芯
21+
TO-92(TO-92-3)
10000
全新原装现货
询价