High-Performance, Dual-Channel DC-DC Converter
High-Performance, Dual-Channel DC-DC Converter General Description
DA9131 is a power management unit (PMU) suitable for supplying CPUs, GPUs, DDR memory rails
in switches and routers, smart metering, industrial automation, wireless applications, consumer
products, SoC/FPGA high performance processing system requiring efficient, high current, power
DA9131 integrates two single-phase buck converters, each phase requiring a small external 0.10 µH
inductor. Each buck is capable of delivering up to 5 A output current at a 0.3 V to 1.9 V output
voltage range. The 2.5 V to 5.5 V input voltage range is suitable for a wide variety of low-voltage
With remote sensing, the DA9131 guarantees the highest accuracy and supports multiple PCB
routing scenarios without loss of performance.
The pass devices are fully integrated, so no external FETs or Schottky diodes are needed.
A programmable soft start-up can be enabled, which limits the inrush current from the input node and
secures a slope-controlled rail activation.
The dynamic voltage control (DVC) supports adaptive adjustment of the supply voltage dependent on
the processor load, via either a direct register write using the communication interface (I 2Ccompatible) or with a programmable input pin.
A configurable GPI allows multiple I2C address selection for multiple instances of DA9131 in the
DA9131 has integrated over-temperature and over-current protection for increased system reliability,
without the need for external sensing components. Key Features