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SpecificationsUltra-Small 0603 Inductor (Height = 1mm)VIN Range: 2.2V to 5.5VVOUT Fixed 1.875V400mA Max Output CurrentUp to 98% Efficiency3mA No Load Quiescent Current2.2MHz Switching Frequency70s Soft StartFast Load TransientOver-Temperature ProtectionCurrent Limit Protection100% Duty Cycle Low-D...

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SeekIC No. : 004261016 Detail

AAT1149A: SpecificationsUltra-Small 0603 Inductor (Height = 1mm)VIN Range: 2.2V to 5.5VVOUT Fixed 1.875V400mA Max Output CurrentUp to 98% Efficiency3mA No Load Quiescent Current2.2MHz Switching Frequency70s S...

AAT1149A Data Sheet

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Part Number:: AAT1149A
Supply Ability:: 5000

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Upload time: 2024/11/24

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Product Details

Description

Specifications

Ultra-Small 0603 Inductor (Height = 1mm)
V_IN Range: 2.2V to 5.5V
V_OUT Fixed 1.875V
400mA Max Output Current
Up to 98% Efficiency
3mA 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 AAT1149A 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 AAT1149A can deliver 400mA of load current and operates in PWM only mode for low noise operation. The 2.2MHz switching frequency minimizes the size of external components while keeping switching losses low.

The AAT1149A is optimized for low noise portable applications.

The AAT1149A 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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AAT1149A

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