Analog Devices Inc. Quad Buck Regulator Integrated Power Solution

Analog Devices ADP5054 quad buck regulator integrated power solution combines four high-performance buck regulators in a 48-lead LFCSP package. ADP5054 meets demanding performance and board space requirements. The device provides a direct connection to high input voltages up to 15V with no pre-regulators.

Channel 1 and Channel 2 integrate high-side power MOSFETs and low-side MOSFET drivers. Designers can use external NFETs in low-side power devices to achieve an efficiency-optimized solution and deliver a programmable output current of 2A, 4A, and 6A. Combining channel 1 and channel 2 in a parallel configuration provides a single output with up to 12A of current.

Channel 3 and channel 4 integrate both high-side and low-side MOSFETs to deliver an output current of 2.5A. Combining channel 3 and channel 4 in a parallel configuration provides a single output with up to 5A of current.

Designers can program or synchronize the switching frequency of the ADP5054 to an external clock from 250kHz to 2MHz. An individual 1/2x frequency configuration is available for each channel. Developed with an individual precision enable pin on each channel, the ADP5054 offers easy power-up sequencing. The internal low 1/f noise reference is implemented in ADP5054 for noise-sensitive applications.

The ADP5054 quad buck regulator integrated power solution is ideal for FPGA & processor applications, small cell base stations, security & surveillance, and medical applications.


  • Wide input voltage range: 4.5V to 15V
  • ±1.5% output accuracy over full temperature range
  • 250kHz to 2MHz adjustable switching frequency with individual 1/2x frequency option
  • Power regulation
    • Channel 1 and channel 2: programmable 2A/4A/6A sync buck regulators with low-side FET driver
    • Channel 3 and channel 4: 2.5A sync buck regulators
  • Flexible Parallel Operation
    • Single 12A output (channel 1 and channel 2 in parallel)
    • Single 5A output (channel 3 and channel 4 in parallel)
  • Low 1/f noise density (~40µVrms @ 0.8VREF 10Hz to 100KHz)
  • Precision enable with 0.8V accurate threshold
  • Active output discharge switch
  • FPWM/PSM mode selection
  • Frequency synchronization input or output
  • Power-good flag for channel 1 output
  • UVLO, OCP, and TSD protection
  • 48-lead, 7mm × 7mm LFCSP
  • −40°C to +125°C operational junctional temperature range


  • FPGA and processor applications
  • Small cell base stations
  • Security and surveillance
  • Medical applications

Typical Application Circuit

Analog Devices Inc. Quad Buck Regulator Integrated Power Solution
Publicado: 2015-04-23 | Actualizado: 2023-08-14