MAX16920

汽车应用电源管理IC,提供3路降压型转换器和线性稳压器

四通道、高频汽车应用电源,内置过压保护


点击查看特定型号的库存状况。

说明

MAX16920电源管理IC集成了三路高压降压型DC-DC转换器、一路高压线性稳压器和一路过压保护。三路降压转换器可分别提供高达150mA、600mA和1.5A电流,线性稳压器能够提供高达150mA电流。MAX16920设计工作于5.5V至28V输入电压,能够承受高达45V的瞬态电压,非常适合汽车应用。

MAX16920优化于高效率、低待机电流。MAX16920A工作在400kHz开关频率,MAX16920B工作在2.2MHz开关频率。DC-DC转换器还能够通过SYNC输入与外部参考时钟同步工作,以降低EMI。

MAX16920包括电源就绪输出(PG_),用于指示DC-DC2、DC-DC3、LDOA的稳压状况,上电复位(/POR)用于DC-DC1。除DC-DC1外,所有稳压器均具有使能控制输入(EN_)。MAX16920上电时,DC-DC1始终保持工作。

MAX16920工作于-40°C至+125°C温度范围,采用紧凑的增强散热型、32引脚、TQFN封装(7mm x 7mm)。
MAX16920A:典型工作电路 MAX16920A:典型工作电路 放大+

关键特性

  • 5.5V至28V宽工作电压范围
  • 能够承受高达45V输入瞬态电压
  • 三路高效、高压降压转换器
  • DC-DC1:150mA (最大值),始终保持工作,超低静态电流(25µA)
  • 3.3V固定或1.22V至5.5V可调
  • DC-DC2:600mA (最大值)、5.0V固定或1.22V至5.5V可调输出电压
  • DC-DC3:1.5A (最大值)、3.3V固定或1.22V至8.0V可调
  • 1路高压5V线性调节器(150mA)
  • pMOS驱动器输出,具有过压关断
  • 400kHz (MAX16920A)或2.2MHz (MAX16920B)开关频率
  • 频率同步输入
  • 电源就绪开漏输出,用于DC-DC2、DC-DC3、LDOA;上电复位用于控制DC-DC1
  • DC-DC2、DC-DC3和LDO使能输入
  • 内部软启动
  • ±2%欠压比较器
  • 过热关断
  • -40°C至+125°C工作温度范围
  • 紧凑的32引脚、TQFN封装(7mm x 7mm)

应用

  • 汽车导航系统
  • 车载无线装置
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
MAX16920 4281.228
3.3
5
Preset
Resistor
1.5InternalYes3
400
2200
TQFN/32
$5.47 @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。


MAX16920BEVKIT: MAX16920A和MAX16920B评估板

质量和环境数据

申请可靠性报告: MAX16920 
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7271MAX16920BEVKIT MAX16920AMAX16920B评估板