MAX17024

单通道Quick-PWM降压型控制器,具有动态REFIN

高效、出色的瞬态响应特性,以极高的直流输出精度实现高压降压转换


点击查看特定型号的库存状况。

说明

MAX17024脉宽调制(PWM)控制器具有高效率、出色的瞬态响应和极高的直流输出精度,能够将较高的电池电压转换成笔记本电脑内部CPU核或芯片组/RAM所需的低电源电压。MAX17024采用动态REFIN控制输出电压,该动态电压支持0至2V输入范围。REFIN调节与反馈输入端的电阻分压器相结合,可将MAX17024输出电压设置在0至0.9 x VIN之间。

Maxim专有的Quick-PWM™快速响应、固定导通时间PWM控制模式可以轻松应对宽输入/输出电压比(低占空比),并对负载瞬变提供100ns的持续导通时间,同时保持相对固定的开关频率。MAX17024能够驱动较大的同步整流MOSFET,提高了电源转换效率。

控制器对与同步整流器串联的检流电阻两端的电流进行检测,从而实现高精度的谷电流限制保护。

MAX17024包含电压控制的软启动和软关断,有效抑制输入浪涌电流,使供电电压单调上升(即使在预充状态),并提供可预置的上电时间。该控制器还具有输出欠压和过热保护功能。

MAX17024采用薄型、14引脚、3mm x 3mm TDFN封装。对空间受限应可以选用MAX17016单通道降压控制器(内置26V MOSFET,支持10A连续负载)。MAX17016采用微小的40引脚、6mm x 6mm TQFN封装。
MAX17024:标准应用电路 MAX17024:标准应用电路 放大+

关键特性

  • Quick-PWM架构具有快速瞬态响应
  • 支持任何输出电容
    • 聚合物/钽电容,无需补偿
    • 陶瓷输出电容,采用外部补偿以实现稳定工作
  • 2V ±10mV精密基准
  • 动态可调输出电压(范围为0至0.9 x VIN)
    • 反馈输入调节为0至2V REFIN
    • 在整个电源输入和负载变化范围内,输出精度为0.5% VOUT
  • 最大输入电压额定值为26V
  • 电阻可设置开关频率
  • 欠压/过热保护
  • 电压软启动和软关断
  • 可预先对输出电容充电,电压单调上升
  • 电源就绪窗比较器

应用

  • DDR存储器—VDDQ或VTT
  • GPU核电源
  • I/O和芯片组供电电源
  • 笔记本电脑
  • 负载点应用
  • 降压型电源
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX17024 226023
Dyn. REF In
Resistor
10ExternalYesYes1600
TDFN/14
$1.52 @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。


MAX17024EVKIT: MAX17024评估板

质量和环境数据

产品可靠性报告: MAX17024.pdf 
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 >

 
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类型 编号 标题
评估板5711MAX17024EVKIT MAX17024评估板