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    LM26480SQ-AA Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulators

    Features

  • Compatible with advanced applications processors and FPGAs
  • 2 LDOs for powering Internal processor functions and I/Os
  • Precision internal reference
  • Thermal overload protection
  • Current overload protection
  • 24-lead 4 × 4 × 0.8mm LLP package
  • External Power-On-Reset function for Buck1 and Buck2
  • Undervoltage lock-out detector to monitor input supply voltage
  • Note: LM26480Q is an Automotive-Grade product that is AECQ-100 Grade 1 qualified.

    Description

    The LM26480 is a multi-functional Power Management Unit, optimized for low-power digital applications. This device integrates two highly efficient 1.5A step-down DC/DC converters and two 300 mA linear regulators. The LM26480 is offered in a tiny 4 x 4 x 0.8mm LLP-24 pin package.

    Key Specification Step-Down DC/DC Converter (Buck)

  • 1.5A output current
  • VOUT from:
  • Buck1 : 0.8V–2.0V @ 1.5A
  • Buck2 : 1.0V–3.3V @ 1.5A
  • Up to 96% efficiency
  • ±3% FB voltage accuracy
  • 2 MHz PWM switching frequency
  • PWM - PFM automatic mode change under low loads
  • Automatic soft start Linear Regulators (LDO)
  • VOUT of 1.0V–3.5V
  • ±3% FB voltage accuracy
  • 300 mA output current
  • 25 mV (typ) dropout


    Applications

  • Core digital power
  • Applications processors
  • Peripheral I/O power