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COM-18357
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We source brand-new parts via original manufacturers, franchised distributors or verified independent channels, with incoming inspection. Channel type is confirmed on your quote.

Contact sales or email [email protected] with MPN and quantity. We reply with stock, ETA and reference pricing — confirm before PO.

Reference price and stock shown as of 2026-11-05. Confirm live availability and unit price via RFQ before placing a PO.

COM-18357

AP63203 3.3V BABYBUCK REGULATOR
SparkFun · Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS · BOM Matching
Mfr. Part Number
COM-18357
Manufacturer
SparkFun
Datasheet
Datasheet
Description
AP63203 3.3V BABYBUCK REGULATOR
RoHS Status
Lead Free / RoHS Complaint
Availability
Sourcing — Lead time quoted on request (often 3–15 business days by channel)
sample
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COM-18357
SparkFun
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In Stock7,670
Unit
Price
$4.5
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Reference Price
QuantityPrice
1$ 4.5000
Prices are for reference only. The final transaction is subject to confirmation.
As of 2026-11-05 · Valid as reference until 2026-11-12 · Request RFQ for live stock.
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Specification Summary

Voltage - Input
3.8V ~ 32V
Voltage - Output
3.3V
Current - Output
2A
Frequency - Switching
1.1MHz
Board Type
Fully Populated
Main Purpose
DC/DC, Step Down
Outputs and Type
1, Non-Isolated
Regulator Topology
Buck
Full specifications are listed below. Need alternates or BOM matching? Read BOM guide · Request a quote
Stock status: Sourcing — Lead time quoted on request (often 3–15 business days by channel)
Shortage / allocation / EOL lines may need longer — ask via RFQ.
Reference price and stock shown as of 2026-11-05. Confirm live availability and unit price via RFQ before placing a PO.
Lead time FAQ Authenticity FAQ MOQ FAQ
Specifications
Product Description
Purchase & Inquiry
Main Purpose
DC/DC, Step Down
Power - Output
-
Regulator Topology
Buck
Frequency - Switching
1.1MHz
Board Type
Fully Populated
Current - Output
2A
Outputs and Type
1, Non-Isolated
Supplied Contents
Board(s)
Utilized IC / Part
AP63203
Voltage - Input
3.8V ~ 32V
Voltage - Output
3.3V
AP63203 3.3V BABYBUCK REGULATOR
Brand Introduction

SparkFun provides bits and pieces to make your electronics projects possible. No matter what your vision is, SparkFun products and resources are designed to make the world of electronics more accessible to everyone, from the engineer to the average person. SparkFun's ever-growing offering of components and widgets are designed to help you unleash your inner inventor.

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Buying FAQ — COM-18357

Answer-first notes for stock, authenticity, lead time and quoting. Marked up as FAQPage.

How do I buy COM-18357 from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes COM-18357. We reply with stock, channel note, reference price and ETA.

Is the listed price final?

Prices on the product page are reference only. Confirm unit price, currency and validity via RFQ before placing a PO.

How fresh is the stock figure?

Stock and reference price show an as-of date on the page. Ask for a live confirm — allocation lines can change daily.

How do you source authentic parts?

We source from manufacturers, franchised distributors and verified independents, then inspect incoming lots. See /anti-counterfeit/.

What is a typical lead time?

In-stock lines often ship within 24–48 hours after confirmation. Sourcing / allocation ETAs are quoted per line — see /lead-time-shipping/.
BOM matching · Anti-counterfeit · Lead time & shipping

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