MAX20002

36V, 220kHz to 2.2MHz, 2A/3A Fully Integrated Step-Down Converters with 15µA Operating Current

2A/3A Automotive Synchronous Step-Down Converter with Low IQ


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说明

The MAX20002/MAX20003 are small, synchronous buck converters with integrated high-side and low-side MOSFETs. Each device is designed to deliver up to 2A/3A with input voltages from 3.5V to 36V, while using only 15µA quiescent current at no load. Voltage quality can be monitored by observing the PGOOD signal. The devices can operate in dropout by running at 98% duty cycle, making them ideal for automotive applications.

The devices offer fixed output voltages of 5V/3.3V, along with the ability to program the output voltage between 1V to 10V. Frequency can be programmed using a resistor to ground on the FOSC pin from 220kHz to 2.2MHz. The devices offer a forced fixed-frequency mode and skip mode with ultra-low quiescent current of 15µA. They have a pin that can be programmed to turn on/off the spread spectrum, further helping systems designers with better EMC management.

The MAX20002/MAX20003 are available in a small 5mm x 5mm 20-pin TQFN package with exposed pad and use very few external components.
MAX20002,MAX20003:Typical Application Circuit/Block Diagram MAX20002,MAX20003:Typical Application Circuit/Block Diagram 放大+

关键特性

  • Synchronous DC-DC Converter with Integrated FETs
    • MAX20002 = 2A
    • MAX20003 = 3A
    • 15µA Quiescent Current When in Standby Mode
  • Small Solution Size Saves Space
    • 220kHz to 2.2MHz Adjustable Frequency
    • Programmable 1V to 10V Output for the Buck or Fixed 5V/3.3V Options Available
    • Fixed 8ms Internal Soft-Start
    • Fixed Output Voltage with ±2% Output Accuracy (5V/3.3V) or Externally Resistor Adjustable (1V to 10V) with ±1% FB Accuracy
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
  • Protection Features and Operating Range Ideal for Automotive Applications
    • Operating VIN Range of 3.5V to 36V
    • 42V Load-Dump Protection
    • 99% Duty-Cycle Operation with Low Dropout
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified
    • Fast and Accurate Overvoltage Protection Enables Fast Recovery from Automotive Transients (MAX20002C/D/MAX20003C/D)

应用

  • DC动力系统分配
  • 导航及无线电头单元
  • 分布式直流电源系统
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
MAX20002 3.536110
3.3
5
Resistor2InternalYesYes1
220
2200
EE-Sim
TQFN-CU/20
$2.75 @1k
MAX20002C 
3.3
4.2
5
Preset
Resistor
2-
SOIC(N)/8
$2.62 @1k
MAX20003 
3.3
5
Resistor3EE-Sim
TQFN-CU/20
$2.75 @1k
MAX20003C 
3.3
4.2
5
Preset
Resistor
3-
SOIC(N)/8
$2.62 @1k
查看所有Step-Down Switching Regulators (402)
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。


MAX20003EVKIT: Evaluation Kit for the MAX20002 and MAX20003

技术资料

应用笔记 5346 Power Control for Automotive Applications

质量和环境数据

申请可靠性报告: MAX20002 
无铅封装的锡(Sn)晶须报告

工具和模型

  • EE-Sim: MAX20002 设计和仿真
  • MAX20002 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。

    质量管理体系 >
    环境管理体系 >

     
    Status:
    Package:
    Temperature:

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    类型 编号 PDF 标题
    应用笔记 5346 Power Control for Automotive Applications