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Analog Devices ADP5303ACBZ-2-R7 — DC-DC Power Modules
Analog Devices

ADP5303ACBZ-2-R7 Buck Regulator, 2 MHz, 50/500 mA, WLCSP

MPNADP5303ACBZ-2-R7
End of Life

Analog Devices ADP5303ACBZ-2-R7, Step-Down Buck Regulator, Programmable Output 0.8V, 50mA/500mA, 2MHz, 9-WLCSP (1.87x1.65), -40°C to 125°C, Active, ROHS3 Compliant.

$3.19Ref. price · indicative, final on quote
ADP5303ACBZ-2-R7 datasheet
Packaging9-WFBGA, WLCSP
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

ADP5303ACBZ-2-R7 Technical Specifications
ParameterValue
Output typeProgrammable
Mounting typeSurface Mount
Voltage - input2.15V
Voltage - output5V
Voltage - output (Min (Fixed))0.8V
Current - output50mA, 500mA
Frequency2MHz
Number of outputs1
Operating temperature-40°C ~ 125°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case9-WFBGA, WLCSP
Output configurationPositive
Synchronous rectifierYes

Product details

What this regulator is and where it fits

The ADP5303ACBZ-2-R7 from Analog Devices is a step-down (buck) switching regulator with a single programmable output. It accepts an input from 2.15 V up to 6.5 V and can be set to any output voltage between a fixed 0.8 V minimum and 5 V maximum. What sets this part apart is its dual current rating: 50 mA on one output path and 500 mA on the other, both from the same regulator — a configuration that suits designs needing a low-current always-on rail plus a higher-current switched rail from one converter. The 2 MHz switching frequency keeps external inductor and capacitor values small, which is the main reason you see this part in space-constrained portable or battery-powered gear. The synchronous rectifier is integrated, so no external Schottky diode is needed.

Package and temperature — what drives the board

The package is a 9-ball WLCSP measuring 1.87 x 1.65 mm.

Lifecycle and sourcing posture

The ADP5303ACBZ-2-R7 carries an Active lifecycle status from Analog Devices, so there is no end-of-life notice or last-time-buy window to worry about. It is also ROHS3 compliant, which clears the EU regulatory gate for new designs. From a procurement standpoint, this part is in the normal production cycle — no allocation signals or extended lead-time flags typical of shortage-driven parts.

What the dual current rating means for your BOM

The 50 mA and 500 mA ratings are for a single-output regulator configured by the feedback network.

Frequently asked questions

Can I replace ADP5303ACBZ-2-R7 with another part?

The closest functional peer is the ADP5302ACPZ-2-R7, which shares the same buck topology, 2 MHz switching frequency, 2.15 V minimum input, and 50 mA / 500 mA output current rating. The key difference is the package: the ADP5302 comes in a larger LFCSP package rather than the WLCSP, so the PCB footprint is not compatible without a layout change.

Does ADP5303ACBZ-2-R7 require external components?

As a switching regulator, it requires external input and output capacitors and an inductor to form the buck converter. The exact component values depend on the output voltage and load current, but the 2 MHz switching frequency allows small ceramic capacitors and a compact inductor.