MAX15053

高效、2A、电流模式同步整流、降压型开关调节器

尺寸最小、效率最高的2A解决方案


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说明

MAX15053高效、电流模式、同步降压型开关调节器内置功率开关,可提供高达2A的输出电流。器件工作于2.7V至5.5V电压,输出电压范围为0.6V至输入电压的94%,非常适合分布式供电系统、便携设备和预调节应用。

MAX15053采用电流模式控制架构,内置高增益跨导误差放大器。电流模式控制架构简化了补偿设计,确保逐周期限流并快速响应电源和负载的瞬态变化。

MAX15053提供可选择的跳脉冲模式,轻载时有助于降低电流消耗、获得更高效率。低RDS(ON)集成开关保证在重载下具有高效率,并使寄生电感降至最小,与分立方案相比,大大简化了布局设计。简单的布局和封装保证了新设计的一次通过率。

MAX15053采用1MHz、工厂校准的固定频率PWM工作模式。高开关频率结合PWM电流模式架构,允许采用紧凑的全陶瓷电容设计。

MAX15053提供电容可编程的软启动功能以减小浪涌电流,可启动进入预偏置工作状态,PGOOD开漏输出可用作中断或用于电源排序。

MAX15053采用9焊球(3 × 3阵列)、1.5mm × 1.5mm WLP封装,工作在-40°C至+85°C温度范围。
MAX15053:原理框图 MAX15053:原理框图 放大+

关键特性

  • 5V时,内部高边和低边MOSFET分别具有30mΩ (典型值)和18mΩ (典型值)的RDS(ON)
  • 整个温度范围内可连续输出2A电流
  • 3.3V、2A输出时,效率高达96%
  • 在整个负载、电源和温度范围内,输出电压精度保持在±1%
  • 2.7V至5.5V工作电压
  • 逐周期过流保护
  • 0.6V至(0.94 x VIN)可调输出
  • 可编程软启动
  • 工厂校准的1MHz开关频率
  • 使用低ESR陶瓷输出电容可保证稳定工作
  • 安全启动至预偏置输出
  • 外部基准输入
  • 跳脉冲模式
  • 使能输入/电源就绪输出
  • 过流和过热完全保护
  • 输入欠压锁定

应用

  • 分布式供电系统
  • IP电话
  • 笔记本电脑电源
  • 便携式设备
  • 线性稳压器的前置稳压
  • 服务器电源
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX15053 2.75.50.65
Dyn. REF In
Resistor
2InternalYesYes11000EE-Sim
WLP HC/9
$1.66 @1k
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。


MAX15053EVKIT: MAX15053评估板

工具和模型

  • EE-Sim: MAX15053 设计和仿真
  • MAX15053 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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