A4480: Wide Input 5 V, 50 mA, Automotive Regulator with Output Short-to-Battery Protection and Power OK

The A4480 is a wide input regulator with complete control, diagnostics, and protection features that address many requirements of automotive applications. It includes a boost function to allow operation with input voltages from 3.5 to 28 V, while maintaining a 5 V output voltage. The A4480 is able to supply up to 50 mA of load current.

An enable pin (ENB) allows control of the regulator output. This pin is rated to operate at up to 40 V, so it can be connected directly to a car battery.

Diagnostic output from the A4480 includes an open-drain Power OK (POK) output to alert the microprocessor that a fault has occurred.

Protection features include input undervoltage lockout (UVLO), foldback overcurrent protection, output under/overvoltage protections (UV/OVP), and thermal shutdown (TSD). In addition, the output is protected from a short-to-battery event.

The A4480 device is available in an 8-pin eSOIC package with exposed pad for enhanced thermal dissipation. It is lead (PB) free, with 100% matte tin leadframe plating.


  • Microcontroller power
  • Transceivers (CAN, LIN, etc.) power supplies
  • Sensors

Astrorep Inc. (Allegro およびサンケン半導体、サンケン電源)
141 John Street, Suite 300
Babylon, NY 11702
電話: (631)422-2500
ファックス: (631)422-2504
Web: www.astrorepinc.com
電子メール: donna.tweedy@astrorepinc.com

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  • Features and BenefitsFeatures and Benefits
  • PackagingPackaging
  • Technical DocsTechnical Docs
  • NewsNews
  • Automotive AEC-Q100 qualified
  • Wide operating range of 3.5 to 28 V, with 40 V load dump rating
  • Linear regulator output with foldback short-circuit and short-to-battery protection
  • Boost function to maintain output when input is low
  • Power OK (POK) flag
  • High-voltage logic-level enable input (ENB) for microprocessor or ignition control
  • Pin-to-pin and pin-to-ground tolerant at every pin
  • Allegro Sensor Bias LDO
A4480 Packages

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A4480 Product Image A4480 Block Diagram A4480 Application

部品番号の仕様およびライフサイクル ステータス

Part Number Package Type Temperature RoHS
部品構成 /
RoHS データ
Comments Samples 代理店の
A4480KLJTR-T 8-lead SOIC -40°C to 150°C Y データを見る 最新情報
APEK4480KLJ-01-MH DEMO BOARD -40°C to 150°C N -- 最新情報

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