ADP5051ACPZ-R7

ADP5051 combines four high performance buck regulators and a supervisory circuit with a voltage monitor, a watchdog function, and demanding performance and board space requirements. The device enables direct connection to high input voltages up to 15.0V with no preregulators. Channel 1 and channel 2 integrate high-side power MOSFET and low-side MOSFET drivers. In low-side power devices, use external NFETs to achieve an efficiency optimized solution and deliver a programmable output current of 1.2A, 2.5 A, or 4A. Combining channel 1 and channel 2 in a parallel configuration provides a single output with up to 8A of current. Channel 3 and channel 4 integrate both high-side and low-side MOSFETs to deliver an output current of 1.2A. Application includes small cell base stations, FPGA and processor applications, security and surveillance, medical applications.

• Adjustable/fixed output options via factory fuse or I²C interface
• I²C interface with interrupt on fault conditions, power regulation
• Precision enable with 0.8V accurate threshold, active output discharge switch
• Programmable phase shift in 90° steps, individual channel FPWM/PSM selection
• Frequency synchronization input or output, optional latch-off protection on OVP/OCP failure
• Power-good flag on selected channels, low input voltage detection
• Open-drain processor reset with external adjustable threshold monitoring
• Watchdog refresh input, manual reset input
• Overheat detection on junction temperature, UVLO, OCP, and TSD protection
• 48-lead LFCSP-WQ package, temperature range from -40°C to +125°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party