MAX15062

60V、300mA、超小尺寸、高效、同步降压型DC-DC转换器

业内最小尺寸IC、高压同步buck稳压器


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说明

MAX15062高效、高压、同步降压型DC-DC转换器内置MOSFET,工作在4.5V至60V输入电压范围。转换器提供高达300mA的输出电流,输出电压为3.3V (MAX15062A) 、5V (MAX15062B)和可调输出电压(MAX15062C)。器件工作在-40°C至+125°C温度范围,采用紧凑的8引脚(2mm x 2mm) TDFN封装。提供仿真模式。

器件采用峰值电流模式架构,带有MODE引脚,可用于在脉宽调制(PWM)或脉冲频率调制(PFM)模式下控制器件工作。PWM工作模式在任何负载条件下都保持固定频率工作,在对开关频率变化敏感的应用中非常有用。PFM工作模式消除了负向电感电流以及轻载条件下额外的跳脉冲,以提高效率。低导通电阻片上MOSFET确保满载时保持高效,同时也简化了PCB布局。

为降低输入浪涌电流,器件提供内部固定软启动。器件也具有EN/UVLO引脚,允许用户在输入电压达到相应要求时开启器件。极低RESET开漏引脚可以用作输出电压监测。

MAX15062: Typical Operating Circuit MAX15062: Typical Operating Circuit 放大+

关键特性

  • 无需外部元件,降低总体成本
    • 无需肖特基同步整流即可保持高效、低成本工作
    • 内置补偿
    • 3.3V和5V固定输出电压,内置反馈分压器
    • 内部软启动
    • 全陶瓷电容设计,提供紧凑布局
  • 缩减DC-DC稳压器库存清单
    • 4.5V至60V宽输入电压范围
    • 3.3V和5V固定输出电压
    • 可调0.9V至0.89 x VIN输出电压选项
    • 提供高达300mA电流
    • 可配置PFM和强制PWM工作模式
  • 降低功耗
    • 效率高达92%
    • PFM功能,轻载时保持高效
    • 关断电流仅为2.2µA(典型值)
  • 在恶劣工业环境下工作可靠
    • 打嗝式限流和自动重试启动
    • 内置输出电压监测,带有/RESET开漏引脚
    • 可编程EN/UVLO门限
    • 启动时单调进入预偏置输出
    • 过热保护
    • -40°C至+125°C汽车级/工业级温度范围

应用

  • 4–20mA电流环
  • 通用负载点电源
  • 替代高压LDO
  • HVAC与楼宇控制
  • 工业传感器
  • 过程控制
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
MAX15062 4.5600.953
3.3
5
Preset
Resistor
0.3InternalYesYes1500EE-Sim
TDFN/8
$1.10 @1k
查看所有Step-Down Switching Regulators (404)
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。


MAX15062AEVKIT: MAX15062A评估板
MAX15062BEVKIT: MAX15062B评估板
MAX15062C12EVKIT: Evaluation Kit for the MAX15062C
MAX15062C5EVKITE: Evaluation Kit for the MAX15062 in 5V Output-Voltage Application

工具和模型

  • EE-Sim: MAX15062 设计和仿真
  • 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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