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AIC1638

Features: A Guaranteed Start-Up from less than 0.9 V.High Efficiency. Low Quiescent Current.Less Number of External Components needed.Low Ripple and Low Noise.Fixed Output Voltage: 2.7V, 3.0V, 3.3V, 4.5V and 5V.Space Saving Packages: SOT-23, SOT-89 and TO-92. ApplicationPagers.Cameras.Wireless Mic...

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SeekIC No. : 004279054 Detail

AIC1638: Features: A Guaranteed Start-Up from less than 0.9 V.High Efficiency. Low Quiescent Current.Less Number of External Components needed.Low Ripple and Low Noise.Fixed Output Voltage: 2.7V, 3.0V, 3.3V,...

AIC1638 Data Sheet

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Part Number:
AIC1638
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: 2025/2/15

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Product Details

Description



Features:

  • A Guaranteed Start-Up from less than 0.9 V.
    High Efficiency.
    Low Quiescent Current.
    Less Number of External Components needed.
    Low Ripple and Low Noise.
    Fixed Output Voltage: 2.7V, 3.0V, 3.3V, 4.5V and 5V.
    Space Saving Packages: SOT-23, SOT-89 and TO-92.





    • Application

  • Pagers.
    Cameras.
    Wireless Microphones.
    Pocket Organizers.
    Battery Backup Suppliers.
    Portable Instruments.


    • Pagers.
    Cameras.
    Wireless Microphones.
    Pocket Organizers.
    Battery Backup Suppliers.
    Portable Instruments.




    Pinout

    Connection Diagram




    Specifications

    Supply Voltage ....................................................................................12V
    SW pin Voltage ...................................................................................12V
    SW pin Switch Current .......................................................................0.6A
    Power Dissipation.........................................................................500mW
    Operating Temperature Range..........................................-20°C to 80 °C
    Storage Temperature Range............................................ -65°C to 150 °C
    Lead Temperature (Sordering 10 Sec.) ............................................260°C




    Description

    The AIC1638 is a high efficiency step-up DC/DC converter for applications using 1 to 4 NiMH battery cells. Only three external components are required to deliver a fixed output voltage of 2.7V, 3.0V, 3.3V, 4.5V or 5V. The AIC1638 starts up from less than 0.9V input with 1mA load. Pulse Frequency Modulation scheme brings optimized performance for applications with light output loading and low input voltages. The output ripple and noise are lower compared with the circuits operating in PSM mode.

    The PFM control circuit operating in 100KHz (max.) switching rate results in smaller passive components. The space saving SOT-23, SOT-89 and TO-92 packages make the AIC1638 an ideal choice of DC/DC converter for space conscious applications, like pagers, electronic cameras, and wireless microphones.






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