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AIC1641

Features: Guaranteed Start-Up from Below 0.9 V. High Efficiency. Low Quiescent Current. Fixed Output Voltage: 2.7V, 3.0V, 3.3V, and 5V. Logic Controlled Shutdown. External Switch Driver for High Power Level Application.Application Pagers. Cameras. Wireless Microphones. Pocket Organizers. Battery ...

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SeekIC No. : 004279057 Detail

AIC1641: Features: Guaranteed Start-Up from Below 0.9 V. High Efficiency. Low Quiescent Current. Fixed Output Voltage: 2.7V, 3.0V, 3.3V, and 5V. Logic Controlled Shutdown. External Switch Driver for High Po...

AIC1641 Data Sheet

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Part Number:
AIC1641
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



Features:

Guaranteed Start-Up from Below 0.9 V.
High Efficiency.
Low Quiescent Current.
Fixed Output Voltage: 2.7V, 3.0V, 3.3V, and 5V.
Logic Controlled Shutdown.
External Switch Driver for High Power Level Application.


Application

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


Pinout

Connection Diagram


Specifications

Supply Voltage ...................................................................................12V
CE input Voltage ................................................................................12V
EXT pin Voltage .........................................................-0.3V to Vout+0.3V
EXT pin Current ...........................................................................± 50mA
Power Dissipation ........................................................................500mW
Operating Temperature Range ....................................... -40 °C to 85°C
Storage Temperature Range......................................... -65°C to 150 °C
Lead Temperature (Sordering 10 Sec.)..........................................260°C


Description

  The AIC1641 is a high efficiency step-up DC/DC converter for applications using 1 to 4 battery cells.Only three external components are required to deliver a fixed output voltage of 2.7V, 3.0V, 3.3V, or 5.0V.Pulse Frequency Modulation scheme brings optimized performance for applications with light output loading and low input voltage. The output ripple and noise are lower compared with the circuit operating in PSM mode.

  The AIC1641 starts up from below 0.9V input to boost either 2.7V, 3.0V, 3.3V,or 5.0V output with 1mA load.Some useful features include, shutdown mode for saving the life of battery. The PFM control circuit operates in 100KHz (max.) switching rate, resulting in smaller passive component size, which makes the AIC1641 an ideal choice of DC/DC converter for space conscious applications.




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