MAX20012B

Automotive Low-Voltage 2-Channel Step-Down Controller

Dual-Output, High-Efficiency Step-Down Controller for Automotive SOC Core Power


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说明

The MAX20012B is a dual-output, high-efficiency synchronous step-down controller IC that operates with a 3.0V to 5.5V input voltage range and provides a 0.5V to 1.5875V output voltage range. The controller architecture enables up to 12A of load current per phase. Channel one has an option to operate with two phases to deliver higher load current, making this device ideal for automotive point-of-load (PoL) and post-regulation applications.

The IC achieves ±2% output error over load, line, and temperature ranges. The IC features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load-transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows the use of all-ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions.

The MAX20012B is offered with factory-preset output voltages (see the Selector Guide for options). The I2C interface supports dynamic voltage adjustment with programmable slew rates for each channel. Other features include programmable soft-start, overcurrent, and overtemperature protections.

关键特性

  • 2-Channel High-Efficiency DC-DC Controller in a Small Solution Size
    • 3.0V to 5.5V Operating Supply Voltage
    • OUT1 Supports 24A (with Two Phases)
    • OUT2 Supports 12A
  • High-Precision Regulator for Applications Processors
    • ±2% Output-Voltage Accuracy
    • Differential Remote Voltage Sensing
    • I2C-Controlled Output Voltage: 0.5V to 1.27V in 10mV Steps
    • 0.625V to 1.5875V in 12.5mV Steps
    • Excellent Load-Transient Performance
  • Low-Noise Features Reduce EMI
    • 2.2MHz Operation
    • Spread-Spectrum Option
    • Frequency-Synchronization Input/Output
    • Current-Mode, Forced-PWM, and Skip Operation
  • Robust for the Automotive Environment
    • Individual Enable Inputs and PGOOD Outputs
    • Low RDS(ON) External FETs
    • Overtemperature and Short-Circuit Protection
    • 32-Pin (5mm × 5mm) TQFN with Exposed Pad
    • -40°C to +125°C Operating Temperature Range
    • AECQ-100 Qualified

应用

  • 汽车
  • null
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
MAX20012B 35.50.51.5875
0.95
0.98
1
1.03
1.2
1.35
Digital/VID
Preset
24ExternalYesYes22200EE-Sim
TQFN/32
$3.13 @1k
查看所有Step-Down Switching Regulators (380)
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。


MAX20012EVKIT: Evaluation Kit for the MAX20012B

质量和环境数据

申请可靠性报告: MAX20012B 
无铅封装的锡(Sn)晶须报告

工具和模型

  • EE-Sim: MAX20012B 设计和仿真
  • CAD Symbols and Footprints

  • MAX20012BATJB/V+
  • MAX20012BATJB/V+T
  • MAX20012BATJC/V+
  • MAX20012BATJC/V+T
  • MAX20012BATJD/V+
  • MAX20012BATJD/V+T
  • MAX20012BATJF/V+
  • MAX20012BATJF/V+T
  • MAX20012BATJG/V+
  • MAX20012BATJG/V+T
  • MAX20012BATJH/V+
  • MAX20012BATJH/V+T
  • MAX20012BATJJ/V+
  • MAX20012BATJJ/V+T
  • MAX20012BATJK/V+
  • MAX20012BATJK/V+T
  • 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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    类型 编号 标题
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