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DA9121 Description

DA9121 is a power management unit (PMU) suitable for supplying CPUs, GPUs, DDR memory rails in single in-line pin package (SIPP) modules, smartphones, tablets, and other handheld applications. DA9121 operates as a single-channel dual-phase buck converter, each phase requiring a small external 0.10 µH inductor. It is capable of delivering up to 10 A output current at a 0.3 V to 1.9 V output voltage range.

DA9121 Key Features

  • 2.5 V to 5.5 V input voltage
  • 0.3 V to 1.9 V output voltage
  • 4 MHz nominal switching frequency
  • ±1 % accuracy (static)
  • ±5 % accuracy (dynamic)
  • I2C-patible interface (FM+)
  • Programmable GPIOs
  • Programmable soft-start
  • Voltage, current, and temperature supervision
  • 40 °C to +85 ºC ambient temperature range

DA9121 Applications

  • 2.5 V to 5.5 V input voltage
  • 0.3 V to 1.9 V output voltage