Alternative Parts


Features and Benefits

  • Input voltage range: 2.4 V to 5.5 V
  • Tiny 16-ball, 2 mm × 2 mm WLCSP package
  • Overcurrent and thermal protection
  • Soft start
  • Factory programmable undervoltage lockout on VDDA system supply of either 2.2 V or 3.9 V
  • Factory programmable default output voltages for all 3 channels
  • Buck1 and Buck2 key specifications
    Current mode architecture for excellent transient response
    3 MHz operating frequency
    See data sheet for additional details
  • LDO key specifications
    Stable with 1 μF ceramic output capacitors
    High PSRR
    60 dB up to 10 KHz
    Low output noise
    See data sheet for additional details

Product Details

The ADP5022 is a micro power management unit (micro PMU) that combines two high performance buck regulators and a low dropout regulator (LDO) in a tiny 16-ball 2.08 mm × 2.08 mm WLCSP to meet demanding performance and board space requirements.

The high switching frequency of the buck regulators enables tiny multilayer external components and minimizes the board space required. When the MODE pin is set high, the buck regulators operate in forced PWM mode. When the MODE pin is set low, the buck regulators automatically switch operating modes depending on the load current level. At higher output loads, the buck regulators operate in PWM mode. When the load current falls below a predefined threshold, the regulators operate in power save mode (PSM), improving the light-load efficiency.

The two bucks operate out-of-phase to reduce the input capacitor requirement and noise.

The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5022 LDO extends the battery life of portable devices. The LDO maintains power supply rejection greater than 60 dB for frequencies as high as 10 kHz while operating with a low headroom voltage.

Each regulator in the ADP5022 has a dedicated, independent enable pin. A high voltage level applied to the enable pin activates the respective regulator. The default output voltages are factory programmable and can be set to a wide range of options.

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Software & Systems Requirements

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.