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Infineon Technologies Analog DC-DC IPOL Voltage Regulators

Infineon Technologies Analog DC-DC IPOL Voltage Regulators are fully integrated and highly efficient DC-DC buck regulators. These devices are available in 12A and 20A versions. These devices use a fast Constant On-Time (COT) control scheme, simplifying design efforts and achieving fast transient response while maintaining excellent line and load regulation. Using an external bias supply, it can operate over a wide input voltage range (2.7V to 16V).

Each device is a versatile regulator, offering switching frequency selectable from 600kHz, 800kHz, and 1MHz, programmable current limit, and soft-start time with a minimum of 1ms or 1.5ms. Each device also includes Forced Continuous Conduction Mode (FCCM) and Diode Emulation Mode (DEM) operation. These Infineon Technologies Analog DC-DC IPOL Voltage Regulators support voltage tracking with an external reference input. It also features important protection functions, such as pre-bias start-up, thermally compensated current limit, over-voltage and under-voltage protection, and thermal shutdown to give required system-level security in the event of fault conditions. These devices are available in a standard QFN-21 (3mm x 4mm) package and can operate over a wide temperature range (-40°C < Tj < 125°C).

Features

  • Wide input voltage range of 4V to 16V with internal bias and 2.7V to 16V with external VCC (3.3V)
  • Precision reference voltage
    • TDA38812 and TDA38825: (0.6V +/-0.5%)
    • TDA38813 and TDA38826: (0.9V +/-0.5%)
  • Stable with ceramic output capacitors
  • No external compensation
  • Optional forced continuous conduction mode and diode emulation for enhanced light load efficiency
  • Selectable switching frequency from 600kHz, 800kHz, and 1MHz
  • Programmable soft-start time with a minimum of 1ms or 1.5ms and enhanced pre-bias start-up
  • Voltage tracking with external reference input
  • Programmable over-current protection limit with internal thermal compensation
  • Enable input with voltage monitoring capability
  • Power Good output
  • Non-latch OCP (TDA38812 and TDA38825) or latch-off OCP (TDA38813 and TDA38826), UVP, thermal shutdown, and latch-off OVP (TDA38812 and TDA38825) or OVP (TDA38813 and TDA38826)
  • Operating temperature of - 40°C < Tj < 125°C
  • Small size 3 mm x 4 mm QFN-21 package
  • Lead-free, halogen-free, and RoHS compliant

Applications

  • Server applications
  • Storage applications
  • Telecom and datacom applications
  • Distributed Point of Load (PoL) power architectures
Published: 2023-10-10 | Updated: 2023-10-17