MAX17019

可接受高输入电压的四输出控制器

高度集成的电压控制器,提供四路稳压输出,采用6mm x 6mm封装


点击查看特定型号的库存状况。

说明

MAX17019四输出控制器能够接受较高的输入电压(高达38V)。MAX17019紧凑的低成本控制器具有4路独立的调节器—主输出、3AP-P降压、5AP-P降压以及2A源出/吸收线性稳压器。输入电压可达38V,使得该芯片成为汽车电子应用的最佳选择。

内部开关调节器包括5V同步MOSFET,可直接由单节Li+电池或从3.3V/5V主电源供电,线性稳压器可源出、吸入2A电流,支持DDR终端供电或产生固定输出电压。

降压转换器采用峰值电流模式、固定频率控制方案—该架构易于实现,无需牺牲快速瞬态响应。器件支持峰值限流保护和跳脉冲工作,以保持轻载下高效工作。

独立的使能输入和独立的电源就绪漏极开路输出允许灵活的电源排序。软启动功能确保输出电压缓慢增加至标称值,以降低浪涌电流。禁止状态下调节器进入高阻状态,以避免通过低边MOSFET快速放电时产生负的输出电压。MAX17019还包括输出欠压保护、输出过压保护以及热故障保护。

MAX17019采用48引脚、6mm x 6mm薄型QFN封装。
MAX17019:标准应用电路 MAX17019:标准应用电路 放大+

关键特性

  • 固定频率、电流模式控制器
  • 5.5V至38V输入范围(降压)
  • 1路降压控制器
  • 1路内部5AP-P降压调节器
  • 1路内部3AP-P降压调节器
  • 1路2A可源出/吸入电流的线性稳压器,具有动态REFIN
  • 内部BST二极管
  • 内部5V 50mA线性稳压器
  • 故障保护—欠压、过压、热过载以及峰值限流
  • 独立的使能输入和电源就绪输出
  • 电压受控的软启动
  • 高阻关断
  • 10µA (典型值)关断电流

应用

  • 嵌入式控制系统
  • 机顶盒
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Package/Pins
minmaxminmax
MAX17019 5.5380.7536Resistor5
External
Internal
YesYes31000
TQFN/48
查看所有Step-Down Switching Regulators (389)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

技术资料

设计指南 5133 Power-Supply Solutions for Altera FPGAs
设计指南 5132 Power-Supply Solutions for Xilinx FPGAs

质量和环境数据

产品可靠性报告: MAX17019.pdf 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

质量管理体系 >
环境管理体系 >

 
Status:
Package:
Temperature:

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