MAX20040

Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

Industry's First 2Mhz Automotive Buck-Boost Converter Operates Seamlessly from 2V Cold Crank to VBATT


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说明

The MAX20039/MAX20040 ICs are a small, synchronous buck-boost converter family with integrated high-side and low-side switches. The MAX20040 is designed to deliver up to 1.2A with input voltages from 2V to 36V while using only 52μA quiescent current at no load .The ICs provide an accurate output voltage of ±2%. Voltage quality can be monitored by observing the PGOOD signal.

The MAX20039/40 offer a fixed output voltage of 5V and a programmable range of 4.0V to 15V. See Ordering Information for more details. Frequency is adjustable from 220kHz to 2.2MHz, which allows for small external components, reduced output ripple, and guarantees no AM interference. Skip mode with low quiescent current of 52uA is available in the 'MAX20040B' and 'MAX20040D' versions of the IC. The ICs can operate with spreadspectrum frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.

The MAX20039/MAX20040 are available in a small (4mm x 4mm), 20-pin, side-wettable TQFN package and use very few external components.

Design Solution: Provide a Safe Power Path from the Car Battery to Remote Cameras ›

关键特性

  • Meets Stringent Automotive Quality and Reliability Requirements
    • 2V to 36V Operating VIN Allows Operation in “Cold-Crank” Conditions
    • Tolerates Input Transients Up to 40V
    • EN Pin Compatible from 3.3V to 40V
    • 0.6A (max) Output Current (MAX20039)
    • 1.2A (max) Output Current (MAX20040)
    • -40°C to +125°C Automotive Temperature Range
    • AEQ-100 Qualified
    • Increased Efficiency with Reduced BOM Cost and Board Space
    • Integrated FETs H-Bridge Architecture
    • Fixed Output Voltages
    • 20-Pin SWTQFN Package
  • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
    • 52µA Quiescent Current when in Standby Mode
    • 10µA (max) Quiescent Current in Shutdown Mode
  • High Switching Frequency Allows Use of Small External Components
    • 200kHz to 2.2MHz Operating Frequency
    • Skip Mode for Efficient Low-Power Operation (B and D version only)
    • Fixed-Frequency PWM Mode
    • External Frequency Synchronization
  • Reduced EMI Emissions at the Switching Frequency
    • Spread Spectrum Can be Enabled or Disabled

应用

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Part NumberICC
(mA)
Shutdown Mode Supply Current
(µA)
Shutdown Mode Supply Current
(µA)
Package/Pins
typtypmax
MAX20039 NEW!1.25410
See Data Sheet
MAX20040 NEW!
See Data Sheet
查看所有Step-Up Switching Regulators (98)
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。

Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
Preset VOUT
(V)
IOUT1
(A)
IOUT1
(A)
Output Adjust. MethodSwitch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsAlternate TopologyOper. Freq.
(kHz)
Design ToolsPackage/PinsOper. Temp.
(°C)
Budgetary
Price
minmaxmaxSee Notes
MAX20039 NEW!24012
3.3
5
0.60.6
Preset
Resistor
InternalYesYes1
Step-Down
Step-Up
Step-Up/Down
200
300
400
500
1000
2200
EE-Sim
See Data Sheet
-40 to +85
-40 to +125
$1.59 @1k
MAX20040 NEW!-1.2
TQFN/20
TQFN-CU/20
$1.89 @1k
查看所有Step-Down/Up Switching Regulators (28)


MAX20040EVKIT: Evaluation Kit for the MAX20039/MAX20040

工具和模型

  • EE-Sim: MAX20040 设计和仿真
  • 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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