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AAT1147

Features: • VIN Range: 2.7V to 5.5V• VOUT Adjustable from 0.6V to VIN• 400mA Output Current• Up to 98% Efficiency• Low Noise, 1.4MHz Fixed Frequency PWM Operation• Fast Load Transient• 150µs Soft Start• Over-Temperature and Current Limit Protec...

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SeekIC No. : 004261014 Detail

AAT1147: Features: • VIN Range: 2.7V to 5.5V• VOUT Adjustable from 0.6V to VIN• 400mA Output Current• Up to 98% Efficiency• Low Noise, 1.4MHz Fixed Frequency PWM Operation•...

AAT1147 Data Sheet

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Part Number:
AAT1147
Supply Ability:
5000

Price Break

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

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Upload time: 2024/11/21

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Product Details

Description



Features:

• VIN Range: 2.7V to 5.5V
• VOUT Adjustable from 0.6V to VIN
• 400mA Output Current
• Up to 98% Efficiency
• Low Noise, 1.4MHz Fixed Frequency PWM Operation
• Fast Load Transient
• 150µs Soft Start
• Over-Temperature and Current Limit Protection
• 100% Duty Cycle Low Dropout Operation
• <1µA Shutdown Current
• 8-Pin SC70JW Package
• Temperature Range: -40°C to +85°C




Application

• Cellular Phones
• Digital Cameras
• Handheld Instruments
• Microprocessor/DSP Core /IO Power
• PDAs and Handheld Computers
• USB devices




Specifications

Symbol Description
Value
Units
VIN
VLX
VOUT
VEN
TJ
TLEAD		 Input Voltage to GND
LX to GND
OUT to GND
EN to GND
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
6.0
-0.3 to VIN + 0.3
-0.3 to VIN + 0.3
-0.3 to 6.0
-40 to 150
300
V
V
V
V
°C
°C





Description

The AAT1147 SwitchReg is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. It is a fixed frequency 1.4MHz step-down converter with an input voltage range of 2.7V to 5.5V and output voltage as low as 0.6V. The AAT1147 is optimized for low noise portable applications, reacts quickly to load variations, and reaches peak efficiency at heavy load.

The AAT1147 output voltage is programmable with external feedback resistors. It can deliver 400mA of load current while maintaining high power efficiency. The 1.4MHz switching frequency minimizes the size of external components while keeping switching losses low.

The AAT1147 is available in a Pb-free, space-saving 2.0x2.1mm SC70JW-8 package and is rated over the -40°C to +85°C temperature range.






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