Analog Devices / Maxim Integrated MAX17645 Synchronous Step-Down DC-DC Converters

Analog Devices MAX17645 Synchronous Step-Down DC-DC Converters feature integrated FETS and compensation. These converters are housed in a small solution size. The small size allows fewer components and helps to reduce overall design costs for the system. Analog Devices MAX17645 Synchronous Step-Down DC-DC Converters operate in a -40°C to +125°C ambient temperature range.

Features

  • Reduces external components and total cost
    • No Schottky-synchronous operation
    • Internal control loop compensation
    • Internal soft-start
    • All ceramic capacitors, ultra-compact layout
  • Reduces the number of DC-DC regulators to stock
    • Wide 4.5V to 36V input voltage range
    • Adjustable output from 0.9V up to 89% of VIN
    • Delivers up to 1A load current
  • High efficiency
    • 90% full-load efficiency (VIN = 24V, VOUT = 5V, IOUT = 1A)
    • 2.2µA (typ) shutdown current
    • High light-load efficiency with PFM mode (MAX17645D)
  • Flexible design
    • Programmable EN/UVLO threshold
    • Monotonic startup into a pre-biased output
    • Open-drain output (RESET) for output status monitoring
  • Robust operation
    • Built-in hiccup mode overload protection
    • Overtemperature protection
    • CISPR32 Class B compliant
    • Wide -40°C to +125°C ambient operating temperature range
    • -40°C to +150°C junction temperature range

Applications

  • Factory automation
  • Aftermarket market automotive
  • General point of load

Block Diagram

Analog Devices / Maxim Integrated MAX17645 Synchronous Step-Down DC-DC Converters

Analog Devices / Maxim Integrated MAX17645 Synchronous Step-Down DC-DC Converters