Smallest dual buck regulator reduces component count

Smallest dual buck regulator reduces component count

The industry’s smallest dual buck regulator targets space-constrained portable electronic systems. At just 2 x 2 x 0.6 mm, the dual 600-mA ADP5022 step-down converter is half the size of competing devices yet includes an additional 150-mA on-chip LDO for powering auxiliary rails. The high level of integration and small package size targets portable instruments, smart energy meters, smart phones, and other power-sensitive equipment that requires thin packages.

The 3-MHz regulators provide fixed-voltage outputs with internal compensation, and eliminates as many as 12 discrete components from a system board design. The device automatically shifts between PWM mode and power-save mode. The mode pin can be used to force the device into PWM mode across all loads.

The device’s compact size allows the system designer to place power regulation alongside the point of load, minimizing PCB parasitics. The buck regulator employs a low-noise driver technique, a power supply rejection ratio of 60 dB up to 10-kHz switching speed, and out-of-phase clocking to further reduce noise. ($0.65 ea/100,000 — available now.)

Analog Devices , Wilmington , MA
Information 800-262-5643
http://www.analog.com