Analog Devices / Maxim Integrated Himalaya uSLIC™ MAXM1790x Step-Down Power Modules

Analog Devices Himalaya uSLIC™ MAXM1790x Step-Down Power Modules are high-efficiency, synchronous step-down DC-DC modules with integrated circuit and inductor that operates over a wide input-voltage range. The module operates from 4.5V to 24V input and delivers up to 300mA output current over a programmable output voltage from 0.9V to 3.3V. The module is an easy-to-use, step-down power module that significantly reduces design complexity, and manufacturing risks, and offers a true plug-and-play power-supply solution, reducing time-to-market. The Analog Devices MAXM1790x employs peak-current-mode control architecture through the MODE pin that can be used to operate the device in pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. The device offers an internal soft-start to reduce input inrush current.

Features

  • Easy to use
    • Wide 4.5V to 24V input range
    • Adjustable 0.9V to 3.3V output
    • ±1.44% feedback accuracy
    • Up to 300mA output-current capability
    • Internally compensated
    • Requires only five external components
    • All ceramic capacitors
  • High efficiency
    • Selectable PWM- or PFM-mode of operation
    • Shutdown current as low as 2.2μA (typ.)
  • Flexible design
    • Pre-bias startup
    • Open-drain Power Good output (RESET pin)
    • Programmable EN/UVLO threshold
  • Robust operation
    • Hiccup overcurrent protection
    • Overtemperature protection
    • High -40°C to +125°C ambient operating temperature range / -40°C to +150°C junction temperature range

Applications

  • Industrial sensors and process control
  • 4-20mA current-loop powered sensors
  • LDO replacement
  • Battery-powered equipment
  • HVAC and building control
  • General purpose Point-of-Load
  • USB Type-C™ powered loads

Functional Diagram

Block Diagram - Analog Devices / Maxim Integrated Himalaya uSLIC™ MAXM1790x Step-Down Power Modules

Typical Application Circuits

Application Circuit Diagram - Analog Devices / Maxim Integrated Himalaya uSLIC™ MAXM1790x Step-Down Power Modules
Published: 2018-09-05 | Updated: 2023-04-25