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ISL6446中文资料Dual (180 Out-of-Phase) PWM and Linear Controller数据手册Renesas规格书

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厂商型号

ISL6446

参数属性

ISL6446 封装/外壳为24-SSOP(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)的稳压器-线性+开关;产品描述:IC REG TRPL BUCK/LNR SYNC 24QSOP

功能描述

Dual (180 Out-of-Phase) PWM and Linear Controller

封装外壳

24-SSOP(0.154",3.90mm 宽)

制造商

Renesas Renesas Technology Corp

中文名称

瑞萨 瑞萨科技有限公司

数据手册

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更新时间

2025-9-22 23:01:00

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ISL6446规格书详情

描述 Description

The ISL6446 is a high-performance, triple output controller that provides a single high-frequency power solution primarily for broadband, DSL and networking applications. This device integrates complete control, monitoring and protection functions for two synchronous buck PWM controllers and one linear controller. Input voltage ripple and total RMS input current is substantially reduced by synchronized 180° out-of-phase operation of the two PWMs.
The two PWM buck converters provide simple voltage mode control. The output voltage of the converters can be precisely regulated to as low as 0.6V, with a maximum tolerance of ±1.5% over-temperature and line variations. Programmable switching frequency down to 100kHz provides optimized low cost solution for ATX power supplies. It’s also able to operate up to 2.5MHz to deliver compact solutions. The linear controller provides a low-current output.
Each PWM controller has soft-start and independent enable functions combined on a single pin. A capacitor from SS/EN to ground sets the soft-start time; pulling SS/EN pin below 1V disables the controller. Both outputs can soft-start into a prebiased load.
The ISL6446 incorporates robust protection features. An adjustable overcurrent protection circuit monitors the output current by sensing the voltage drop across the upper MOSFET rDS(ON). Latch-off mode overcurrent operation protects the DC/DC converters from damage under overload and short-circuit conditions. A PGOOD signal is issued when soft-start is complete and PWM outputs are within 10% of their regulated values and the linear regulator output is higher than 75% of its nominal value. Thermal shutdown circuitry turns the device off if the IC temperature exceeds +150°C.

特性 Features

• 4.5V to 5.5V or 5.5V to 24V input voltage range
• Three programmable power output voltages
• Two PWM controllers with out-of-phase operation
• Voltage-mode PWM control
• One linear controller
• Programmable switching frequency from 100kHz to 2.5MHz
• Fast transient response
• High-bandwidth error amplifier
• Extensive circuit protection functions
• Undervoltage and over-temperature
• Overvoltage with latch-off mode
• Programmable overcurrent limit with latch-off mode
• Lossless current sensing (no sense resistor needed)
• Externally adjustable soft-start time
• Independent enable control
• Voltage tracking capability
• Able to soft-start into a prebiased load
• PGOOD output with delay

应用 Application

• ATX power supplies
• DSP, ASIC and FPGA point of load regulation
• Industrial and security networking applications

技术参数

  • 制造商编号

    :ISL6446

  • 生产厂家

    :Renesas

  • 输出数量

    :3

  • 输入电压最小值 (V)

    :4.5

  • 输入电压最大值 (V)

    :24

  • 输出电压最小值 (V)

    :0.6

  • 输出电压1最大值 (V)

    :24

  • 输出电流1最大值 (A)

    :25

  • 开关频率 (kHz)

    :100kHz to 2.5MHz

  • 偏置电压 (VCC) (V)

    :5

  • 线性输出

    :Yes

  • 支持DDR

    :No

  • 资质级别

    :Standard

  • 偏置电压范围 (V)

    :5

  • 温度范围

    :-40 to +85

供应商 型号 品牌 批号 封装 库存 备注 价格
INTERSIL
24+
NA/
3275
原装现货,当天可交货,原型号开票
询价
RENESAS(瑞萨)/IDT
24+
SSOP24150mil0.635mm
7350
现货供应,当天可交货!免费送样,原厂技术支持!!!
询价
INTERSIL
2016+
SSOP24
2500
只做原装,假一罚十,公司可开17%增值税发票!
询价
Renesa
25+
25000
原厂原包 深圳现货 主打品牌 假一赔百 可开票!
询价
INTERSIL
23+
SSOP24
30000
代理全新原装现货,价格优势
询价
Intersil
22+
24QSOP
9000
原厂渠道,现货配单
询价
Renesas Electronics America In
ROHS.original ic
24-QSOP
5000
﹤原装元器件﹥Ic pmic稳压器,半导体元件供应商/
询价
Intersil
2023+
24-QSOP
500
安罗世纪电子只做原装正品货
询价
Intersil
20+
24-SSOP
65790
原装优势主营型号-可开原型号增税票
询价
INTERIS
2223+
26800
只做原装正品假一赔十为客户做到零风险
询价