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AAT1149B

SpecificationsUltra-Small 0603 Inductor (Height = 1mm)VIN Range: 2.2V to 5.5VVOUT Fixed 1.8V400mA Max Output CurrentUp to 98% Efficiency45A No Load Quiescent Current2.2MHz Switching Frequency70s Soft StartFast Load TransientOver-Temperature ProtectionCurrent Limit Protection100% Duty Cycle Low-Dro...

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SeekIC No. : 004261017 Detail

AAT1149B: SpecificationsUltra-Small 0603 Inductor (Height = 1mm)VIN Range: 2.2V to 5.5VVOUT Fixed 1.8V400mA Max Output CurrentUp to 98% Efficiency45A No Load Quiescent Current2.2MHz Switching Frequency70s Sof...

AAT1149B Data Sheet

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Part Number:
AAT1149B
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Specifications

  • Ultra-Small 0603 Inductor (Height = 1mm)
  • VIN Range: 2.2V to 5.5V
  • VOUT Fixed 1.8V
  • 400mA Max Output Current
  • Up to 98% Efficiency
  • 45A No Load Quiescent Current
  • 2.2MHz Switching Frequency
  • 70s Soft Start
  • Fast Load Transient
  • Over-Temperature Protection
  • Current Limit Protection
  • 100% Duty Cycle Low-Dropout Operation
  • <1A Shutdown Current
  • 0.9x1.2mm WLCSP Package
  • Temperature Range: -40C to +85C



Description

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The AAT1149B SwitchReg is a 2.2MHz step-down converter with an input voltage range of 2.2V to 5.5V. It is optimized to react quickly to load variations and operate with a tiny 0603 inductor that is only 1mm tall.

The AAT1149B can deliver 400mA of load current while maintaining a low 45A no load quiescent current. The 2.2MHz switching frequency minimizes the size of external components while keeping switching losses low.

The AAT1149B maintains high efficiency throughout the operating range, which is critical for portable applications. The AAT1149B is available in a Pb-free, space-saving 5-pin wafer-level chip scale (WLCSP) package and is rated over the -40C to +85C temperature range.




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