Analog Devices ADP5051 Quad Buck Regulators
Analog Devices ADP5051 integrates four high performance buck regulators and a supervisory circuit with a voltage monitor, a watchdog function, and a manual reset in a 48-lead LFCSP package to meet demanding performance and board space requirements. ADP5051 allows a direct connection to high input voltages up to 15.0V with no preregulators. Channel 1 and Channel 2 provide high-side power MOSFET and low-side MOSFET drivers. In low-side power devices, external NFETs achieve an efficiency optimized solution and deliver a programmable output current of 1.2A, 2.5A, or 4A. The ADP5051 supervisory circuits monitor voltage level. The watchdog timer generates a reset when the WDI does not toggle within a preset timeout period. An optional I2C Interface offers flexible configurations, including adjustable and fixed output voltage, junction temperature overheat warning, low input voltage detection, and dynamic voltage scaling. The design makes the ADP5051 an ideal integrated power solution for small cell base stations, FPGA and processor applications, security & surveillance, and medical applications.