MAX16933

2.2MHz、36V、双路降压器,20µA静态电流

低IQ,高频、双路降压控制器,节省电路板面积并符合汽车OEM功耗要求


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说明

MAX16932/MAX16933提供两路高压、同步降压控制器。在空载时仅消耗20µA静态电流。器件输入电压范围为3.5V至42V,器件可工作在低压差状态,采用95%占空比。器件主要针对中功率至大功率要求的应用,并且需要两路独立控制的输出电源,例如汽车应用。

MAX16932/MAX16933降压控制器采用180°错相工作,减小输入纹波。器件采用2.2MHz开关频率,允许使用小尺寸外部元件并且保证没有AM频段干扰。FSYNC输入可编程使器件可采用3种频率模式工作,用于优化性能:强制固定频率工作、超低静态电流(20µA)跳脉冲模式以及同步至外部时钟。器件提供扩谱选项降低EMI干扰。

器件还带有上电就绪监视以及过压和欠压锁定输出。保护特性包括逐周期电流限制以及热关断。

器件采用28引脚TQFN-EP封装,工作在-40°C至+125°C汽车级温度范围。

MAX16932, MAX16933: Block Diagram MAX16932, MAX16933: Block Diagram 放大+

关键特性

  • 双路、2.2MHz降压控制器
  • 180°错相工作,减小噪声
  • 50ns最小开启时间,允许在2.2MHz时从汽车电池输出3.3V
  • 20µA工作电流
  • 宽输入电压范围:3.5V至36V
  • 电阻可编程频率范围:200kHz至2.2MHz
  • ±1%输出电压精度:5.0V/3.3V固定输出或者1V至10V可调整输出
  • 电流模式控制器,带有强制连续模式和跳脉冲模式
  • 频率同步输入
  • 电源过压和欠压锁定
  • 过热和短路保护
  • 增强散热型28引脚TQFN-EP封装
  • -40°C至+125°C工作温度范围
  • 扩谱选项

应用

  • DC动力系统分配
  • 导航及无线电头单元
  • 汽车电源POL应用
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)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX16932 3.536110
3.3
5
Preset
Resistor
10ExternalYesYes22200EE-Sim
TQFN/28
$4.34 @1k
MAX16933 1000
TQFN/28
查看所有Step-Down Switching Regulators (388)
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。


MAX16932EVKIT: 评估MAX16932和MAX16933

质量和环境数据

申请可靠性报告: MAX16933 
无铅封装的锡(Sn)晶须报告

工具和模型

  • EE-Sim: MAX16933 设计和仿真
  • MAX16933 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。

    质量管理体系 >
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