ADP5050 Datasheet

• Wide input voltage range:
  4.5 V to 15 V
• ±1.5% output accuracy over full temperature range
• 250 kHz to 1.4 MHz adjustable switching frequency
• Adjustable/fixed output options via factory fuse or I²C interface
• I²C interface with interrupt on fault conditions
• Power regulation
  Channel 1 and Channel 2: programmable 1.2 A/2.5 A/4 A sync buck regulators with low-side FET driver
  Channel 3 and Channel 4: 1.2 A sync buck regulators
  Channel 5: 200 mA low dropout (LDO) regulator
• See data sheet for additional features

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

The ADP5050 combines four high performance buck regulators and one 200 mA low dropout (LDO) regulator in a 48-lead LFCSP package that meets demanding performance and board space requirements. The device enables direct connection to high input voltages up to 15 V with no preregulators.

Channel 1 and Channel 2 integrate high-side power MOSFETs and low-side MOSFET drivers. External NFETs can be used in low-side power devices to achieve an efficiency optimized solution and deliver a programmable output current of 1.2 A, 2.5 A, or 4 A. Combining Channel 1 and Channel 2 in a parallel configuration can provide a single output with up to 8 A of current.

Channel 3 and Channel 4 integrate both high-side and low-side MOSFETs to deliver output current of 1.2 A.

The switching frequency of the ADP5050 can be programmed or synchronized to an external clock. The ADP5050 contains a precision enable pin on each channel for easy power-up sequencing or adjustable UVLO threshold.

The ADP5050 integrates a general-purpose LDO regulator with low quiescent current and low dropout voltage that provides up to 200 mA of output current.

The optional I²C interface provides the user with flexible configuration options, including adjustable and fixed output voltage options, junction temperature overheat warning, low input voltage detection, and dynamic voltage scaling (DVS).