MAX20026, MAX20026S

汽车应用、四通道、低压、降压型DC-DC转换,带低噪声LDO

四个1A、低压、高效DC-DC转换器和一个低噪声200mA LDO


点击查看特定型号的库存状况。

说明

MAX20026/MAX20026S电源管理IC (PMIC)集成4个低压、高效、降压型DC-DC转换器和一个低噪声LDO线性调节器。其中每个降压型DC-DC转换器输出由工厂设置,可提供高达1.0A电流。LDO线性调节器输出可设置为2.5V或可调节,可提供200mA电流。PMIC工作在3.0V至5.5V,是汽车负载点和后端调节应用的理想选择。

PMIC具有固定频率PWM工作模式,开关频率为3.2MHz。高频操作允许使用全陶瓷电容设计,以及小尺寸外部元件。低阻片上开关保证在重负载下具有高效率,并将关键性的电感降至最小,与分立式方案相比,布局要简单得多。内部电流检测和环路补偿降低电路板空间和系统成本。

4个降压转换器中的2个转换器与内部时钟错相180°工作,可减小必须的输入电容,且改善EMI。所有降压转换器在AM带外工作在恒定PWM模式。PMIC提供SYNC输入,以同步到外部时钟。PMIC提供独立使能输入和电源就绪输出。

PMIC提供多种重要保护特性,包括输入过压保护、输入欠压监测、输入欠压锁定、逐周期限流,以及过热关断。当输入下降到低于欠压监测(UVM)门限时,输入欠压监测器将PGOOD驱动为低电平,表示掉电条件。

MAX20026/MAX20026S PMIC采用28引脚TQFN封装,带裸焊盘,工作在-40°C至+125°C汽车级温度范围。

关键特性

  • 高度集成减小方案尺寸
    • 四个降压型DC-DC转换器,集成MOSFET,每个转换器可提供1.0A电流
    • 一个200mA LDO,输出电压可调节
    • 混合负载线架构,支持较小输出电容
  • 设计性能支持汽车应用负载点调节
    • 工作在3.0V至5.5V供电电压范围
    • 每路输出拥有独立使能信号
    • UV/OV/UVM/PGOOD
    • 软启动和电源排序降低浪涌电流
  • 低噪声特性改善EMI性能
    • 3.2MHz开关频率
    • 强制PWM工作模式
    • 2路通道180°错相操作
    • SYNC输入
  • 支持汽车环境的可靠性
    • 28引脚(4mm x 4mm x 0.8mm) TQFN-EP封装
    • -40°C至+125°C工作温度范围
    • 经过AEC-Q100认证

应用

  • 汽车
  • 工业
Part NumberPrimary TopologyMonitor/Control FeaturesDC-DC/Power FeaturesVOUT
(V)
VOUT
(V)
Max. IOUT
(A)
Oper. Freq.
(kHz)
Package/Pins
minmax
MAX20026 Step-Down
External Synch.
Output OVP
Output UVP
Shutdown
Volt. or PWM Controlled Output
Current Limit
Fixed Freq./PWM
Internal Switch
Soft Start
Sync. Rectifier
1413200
TQFN-CU/28
查看所有Multifunction PMICs (85)

Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Package/Pins
minmaxminmaxmax
MAX20026 --14--1InternalYesYes4-
See Data Sheet
MAX20026S 35.50.83.8
1.35
3.3
Preset
Resistor
3200
TQFN-CU/28
查看所有Step-Down Switching Regulators (402)
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。


MAX20026EVKIT: Evaluation Kit for the MAX20026/MAX20026S

质量和环境数据

申请可靠性报告: MAX20026  MAX20026S 
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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