MAX16993

降压控制器,带有2路2.1MHz降压DC-DC转换器

高度集成的汽车PMIC,3路DC-DC降压输出、低IQ以及最低启动时间


点击查看特定型号的库存状况。

说明

MAX16993电源管理集成电路(PMIC)是一款2.1MHz、多通道、DC-DC转换器,设计用于汽车应用。该器件在小型封装内集成了3路电源。器件包括一路直接从汽车电池供电的高压降压控制器(OUT1),以及从OUT1级联输出的两路低压降压控制器(OUT2/OUT3)。空载条件下,MAX16993仅消耗30µA静态电流,使其非常适合汽车应用。

高压同步降压DC-DC控制器(OUT1)可连续工作在高达36V的电压,可承受高达42V的抛负载瞬态电压。引脚可编程频率允许选择2.1MHz或工厂设置的1.05MHz、525KHz、420KHz或350KHz。低压、同步降压DC-DC转换器直接从OUT1运行并可输出高达3A电流。

器件带有扩谱使能输入(SSEN),可在需要时快速提升抗电磁干扰能力。器件还带有SYNC I/O,可作为与外部时钟源同步的输入,也可作为内部产生时钟的输出(参见完整数据资料中的选型指南部分)。器件带有过热关断和过流限制。器件还带有独立的/RESET_输出和使能输入。/RESET_输出对所有输出通道提供电压监控。

MAX16993采用32引脚TQFN/侧面防潮的QFND-EP封装,工作在-40°C至+125°C汽车级温度范围。

MAX16993: Typical Application Circuit MAX16993: Typical Application Circuit 放大+

关键特性

  • 高压DC-DC控制器
    • 3.5V至36V工作电压范围
    • 42V抛负载保护
    • 输出电压:引脚可选、固定或电阻分压器调整
    • 350kHz至2.1MHz工作频率
    • DC-DC控制器使能时,30µA静态电流
  • 双路、高效2.1MHz DC-DC转换器
    • 直接从OUT1供电
    • 集成3A FET
    • 0.8V至3.95V输出电压
    • 固定输出或通过电阻分压器调节输出电压
    • 180°错相工作
  • 单独使能输入
  • 独立的/RESET_输出
  • 过热报警指示器输出
  • 强制PEM和跳脉冲模式
  • 过热和短路保护
  • 32引脚TQFN-EP (5mm x 5mm x 0.75mm)和侧面防潮QFND-EP (5mm x 5mm x 0.8mm)封装
  • -40°C至+125°C工作温度范围

应用

  • 汽车
  • 工业
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingDC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX16993 3.5360.85.6
1.2
1.35
1.5
3.15
3.3
5
Preset
Resistor
3
External
Internal
Yes3
350
2100
QFND/32
TQFN/32
TQFN-CU/32
$5.01 @1k
查看所有Step-Down Switching Regulators (403)
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。


MAX16993EVKIT: Evaluation Kit for the MAX16993
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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