MAX20414

2.2MHz同步Boost和降压型转换器

小尺寸汽车PMIC,适用于信息娱乐系统和ADAS应用


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说明

MAX20414为高效、双路输出、低压DC-DC转换器。OUT1输出将输入电压升压到高达8.5V、电流高达750mA,而同步降压型转换器(OUT2)工作在3.0V至5.5V输入电压范围,提供0.8V至3.8V输出电压,负载电流高达3A。在整个负载、电源和温度范围内,boost转换器的精度可达到±2%,buck转换器的精度可达到±1.5%。

IC可以工作在2.2MHz固定频率脉宽调制(PWM)模式,提供更好的抗噪性和负载瞬态响应;也可工作在脉冲频率调制模式(SKIP),确保轻载下的高效工作。2.2MHz工作频率允许使用全陶瓷电容,使外部元件占位面积最小化。可编程扩频调制最大程度抑制电磁辐射。相对于分立式方案,集成的低RDS(ON)开关大大提高重负载时的效率,并简化电路布局。

IC的降压型转换器采用工厂预设或电阻可调节输出电压,boost转换器输出电压为工厂预设。其他特性包括软启动、过流和过热保护。高效、双路输出、低压DC-DC转换器采用无铅、24引脚、TQFN封装(关于选项请参见定购信息表)。

关键特性

  • 多功能、小尺寸
    • 同步750mA Boost转换器
      • 3.8V至8.5V固定输出电压,步长为100mV。
    • 高达3A的同步Buck转换器
      • 工厂可配置输出电压:0.8V至3.8V,步长为25mV
      • 电阻可调节
    • 3.0V至5.5V工作电压
    • 2.2MHz操作
    • 93% ±3%欠压门限
    • 107% ±3%过压门限
    • 独立的EN_输入和低电平有效RESET_输出
  • 高精度
    • ±2%输出电压精度(OUT1)和±1.5%输出电压精度(OUT2)
    • 良好的负载瞬态响应
  • 支持汽车环境的可靠性
    • 电流模式、强制PWM或跳脉冲工作模式
    • 过热和短路保护
    • 4mm × 4mm、24引脚、TQFN封装
    • -40°C至+125°C汽车级温度范围

应用

  • ADAS
  • 娱乐
  • SOC电源
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
VOUT1 Tolerance
(±%)
IOUT1
(A)
IOUT1
(A)
Output Adjust. MethodSwitch TypeSynchronous SwitchingPower Good SignalICC
(mA)
Alternate TopologyOper. Freq.
(kHz)
Operating Freq.
(kHz)
Design ToolsPackage/PinsOper. Temp.
(°C)
minmaxminmaxmax
MAX20414 35.50.88.5
1.25
2.85
3.3
3.4
5
2
0.75
0.8
0.75
3
Preset
Resistor
InternalYesYes0.2
Step-Down
Step-Up
22002200EE-Sim
TQFN-CU/24
-40 to +85
-40 to +125
查看所有Step-Down/Up Switching Regulators (30)
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。


MAX20414EVKIT: MAX20414 评估板

工具和模型

  • EE-Sim: MAX20414 设计和仿真
  • MAX20414 SIMPLIS Schematic
  • 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。

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    Automotive Single 8A/12A Step-Down Converter with High Efficiency

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    MPP跟踪DC-DC转换器

    • 对20-24个串联PV电池执行MPPT
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    MPP跟踪DC-DC转换器

    • 对20-24个串联PV电池执行MPPT
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    60V、1A、汽车应用、同步降压型DC-DC转换器

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    类型 编号 标题
    评估板9804MAX20414EVKIT MAX20414 评估板