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A8499

Features: ·8 to 50 V input range·Integrated DMOS switch·Adjustable fixed off-time·Highly efficient·Adjustable 1.2 to 24 V outputApplication·Printer power supplies·Consumer equipment power suppliesPinoutSpecifications 8-50 V input range Integrated DMOS switch Flat efficiency curve across outpu...

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SeekIC No. : 004260713 Detail

A8499: Features: ·8 to 50 V input range·Integrated DMOS switch·Adjustable fixed off-time·Highly efficient·Adjustable 1.2 to 24 V outputApplication·Printer power supplies·Consumer equipment power suppliesPi...

A8499 Data Sheet

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Part Number:
A8499
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: 2024/11/8

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Product Details

Description



Features:

·8 to 50 V input range
·Integrated DMOS switch
·Adjustable fixed off-time
·Highly efficient
·Adjustable 1.2 to 24 V output




Application

·Printer power supplies
·Consumer equipment power supplies




Pinout

Connection Diagram




Specifications

  • 8-50 V input range
  • Integrated DMOS switch
  • Flat efficiency curve across output current
  • 1.5 A output in standard SOIC-8 package
  • Low shutdown current
  • Low cost
  • Applications with 8 to 50 V input voltage range needing buck regulator for 1.5 A output current
  • Consumer equipment power
  • Uninterruptible power supplies (lead acid battery charger)
  • Automotive: 9 to 16 V input, with higher voltage protection
  • 12 V lighter-powered applications (portable DVD, etc.)
  • Point of Sale (POS) applications
  • Industrial applications with 24 V or 36 V bus



Supply Voltage, VIN ............................................................50 V
VBIAS Input Voltage, VBIAS .....................................0.3 to 7 V
Switch Voltage, VLX ...........................................................1 V
ENB Input Voltage, VENB .........................................0.3 to 7 V
Junction Temperature, TJ(max) ...................................... 150°C
Storage Temperature, TS ............................. 55°C to 150°C
Operating Ambient Temperature, TA............... 20°C to 85°C




Description

The A8499 is a step-down regulator that will handle a wide input of operating voltage ranges. It is a fixed off-time current-mode-controlled buck regulator. The regulator requires an external clamping diode, inductor and filter capacitor. The off time is determined by an external resistor.

It will operate in both continuous and discontinuous modes. An internal blanking circuit will be used to filter out transients due to the reverse recovery of the external clamp diode. Typical blanking time is 200 nS.

The output voltage is adjustable from 1.2 V to 24 V based on a resistor divider and the 1.2 V 3 percent reference.



The A8499 is a step down regulator that will handle a wide input operating voltage range.

The A8499 is supplied in a low-profile 8-lead SOIC with exposed pad (package LJ).




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