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ML4866

Features: · High power conversion efficiency over 2 decades of load current· No external FETs or diodes; minimum external components· 3.5V to 6.5V input voltage range· Significantly extends battery life over linear regulator based solutions· Micropower operation· Low shutdown mode quiescent curren...

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SeekIC No. : 004422117 Detail

ML4866: Features: · High power conversion efficiency over 2 decades of load current· No external FETs or diodes; minimum external components· 3.5V to 6.5V input voltage range· Significantly extends battery ...

ML4866 Data Sheet

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Part Number:
ML4866
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: 2024/11/26

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Product Details

Description



Features:

· High power conversion efficiency over 2 decades of load current
· No external FETs or diodes; minimum external components
· 3.5V to 6.5V input voltage range
· Significantly extends battery life over linear regulator based solutions
· Micropower operation
· Low shutdown mode quiescent current


Pinout

Connection Diagram


Specifications

VIN ................................................................................ 7V
Voltage on any other pin .............GND - 0.3V to VIN + 0.3V
Peak Switch Current (IPEAK) ......................................... .2A
Average Switch Current (IAVG) ...................................... 1A
Junction Temperature ............................................... 150
Storage Temperature Range ....................... -65 to 150
Lead Temperature (Soldering 10 Sec.) ..................... 260
Thermal Resistance (JA) .................................... .160/W


Description

The ML4866 is a high efficiency pulse width modulated (PWM) buck regulator designed for use in 5V systems or portable equipment that need a compact, efficienct 3.3V supply. It has a switching frequency of 120kHz and uses synchronous rectification to optimize power conversion efficiency. Unlike other solutions, the ML4866 requires no external diodes or FETs.

The ML4866 can provide up to 500mA of output current, and operates over an input voltage range of 3.5V to 6.5V (3 to 4 cells or a 5 VDC supply). A complete switched mode power converter can be quickly and easily implemented with few external components. Thanks to a built-in autoburst mode, power conversion efficiency of this DCDC converter ML4866 can exceed 90% over more than 2 decades of output load current.

Stability and fast loop response are provided by current programming and a current sense circuit. The ML4866 also has a SHDN pin for use in systems which have power management control. Undervoltage lockout and soft start are also built in.




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