ADP5054
ADI ADP5054 quad step-down regulator PMIC with four programmable channels, interleaved switching, sequencing and power-good, in a 48-lead LFCSP.
The ADP5054 is a multichannel power management IC from ADI that integrates four high-efficiency step-down regulators in a single package, which shrinks a system that needs several rails from a single input. Each channel is independently programmable and can be configured as a buck or an LDO, and the switching frequency and the phase can be set so the regulators interleave and spread the switching noise rather than stacking it at one frequency, which keeps the conducted emissions lower and helps a mixed-signal board. The part provides a precision enable, a power-good signal and a sequencing function, so a system can bring the rails up and down in a controlled order, and the current-mode control gives a fast transient response for a digital load that steps quickly. The input range of about 4.5 V to 15.5 V covers a 5 V or a 12 V rail, and the high efficiency keeps the heat down in a compact enclosure. The small LFCSP package with the exposed pad carries the heat to the board, so a designer can supply several amps from one device. Typical applications include a multi-rail industrial board, a data-acquisition or an instrument system that needs a clean analog rail and a digital rail, a communications or a networking card and a medical or a scientific instrument. Every device BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Our FAE team helps you choose the rails and the sequencing and plan the layout.
FAE Professional Review
The ADP5054 packs four step-down regulators into one chip, which is ideal for a multi-rail instrument or an industrial board where board space and part count matter. The interleaved, phase-shifted switching keeps the noise spread out, and the sequencing and power-good signals simplify the system start-up. Keep the input and output capacitors close and give the exposed pad a good thermal path.
| Parameter | Value |
|---|---|
| Type | Quad Buck Regulator |
| Outputs | 4 |
| Current | 6 A total |
| Input Voltage | 4.5 to 15.5 V |
| Package | LFCSP-48 |
Application Circuits
Multi-rail industrial boards
Reference circuits and application schematics for Multi-rail industrial boards are available from our FAE team.
Mixed-signal data acquisition
Reference circuits and application schematics for Mixed-signal data acquisition are available from our FAE team.
Communications and networking
Reference circuits and application schematics for Communications and networking are available from our FAE team.
Medical and scientific instruments
Reference circuits and application schematics for Medical and scientific instruments are available from our FAE team.
Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.
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Frequently Asked Questions
What projects suit the ADP5054?
It suits a system that needs several rails from one input with a compact part count, such as a multi-rail industrial board or a mixed-signal instrument, with four programmable step-down channels.
Confirm the rails and the sequencing for your design.
Why interleave the channels?
Phase-shifting the switching of the channels spreads the switching noise across time instead of stacking it at one frequency, which lowers the input ripple and the conducted emissions and eases the filtering.
Read the power supply design guide.
Is the regulator genuine and documented?
BeiLuo supplies factory-traceable ADP5054 regulators with an import declaration, certificate of origin and RoHS file on every order. Stock is normally available and the datasheet downloads from this page.
Order a sample to validate the regulator before volume production.