Analog Devices ADP5055

Description

The ADP5055 combines three high performance buck regulators in a 43-terminal land grid array (LGA) package that meets the demanding performance and board space requirements. The device enables direct connection to high input voltages up to 18 V with no preregulators.All channels integrate both high-side and low-side power metal-oxide semiconductor field effect transistors (MOSFETs) to achieve an efficiency optimized solution. Channel 1 and Channel 2 deliver a programmable output current of 3.5 A or 7 A or provide a single output with up to 14 A of current in parallel operation. Channel 3 delivers a programmable output current of 1.5 A or 3 A.

Features

• Wide input voltage range: 2.75 V to 18 V
• Bias input voltage range: 4.5 V to 18 V
• Operation up to 150°C junction temperature
• PMBus-compatible interface with configurable address
• FB1 voltage accuracy (default): −0.62% to +0.69% (−40°C ≤ TJ ≤ +125°C)
• Channel 1 and Channel 2: 7 A synchronous buck regulator (9.4 A minimum valley current-limit threshold)
• Channel 1 and Channel 2: 14 A output in parallel operation
• Channel 3: 3 A synchronous buck regulator (4.2 A minimum valley current-limit threshold)
• 8-bit precision DAC for DVS Adjustable feedback voltage range: 408 mV to 790.5 mV per 1.5 mV step -Upper and lower threshold limit setting 250 kHz to -2500 kHz adjustable switching frequency range
• External compensation for fast load transient response
• Precision enable pin with 0.615 V accurate threshold
• Programmable power-up and power-down sequence
• Selective active output discharge switch
• Selective FPWM/PSM mode selection Frequency synchronization input or output
• Power-good flag on selective channels
• UVLO, overcurrent protection, and TSD protection
• 43-terminal, 5.00 mm × 5.50 mm LGA package

Typical applications

• Medical Systems
• Field programmable gate array (FPGA) and processor applications, Security and surveillance, Small cell base stations

More information

• Datasheet
• IC product information