MCP1603-330I/MC Microchip Integrated Circuit (Small Outline No-lead) In Stock

Name: MCP1603-330I/MC
Brand: Microchip
SKU: MCP1603-330I/MC
Availability: InStock

Microchip MCP1603-330I/MC is a 2.0 MHz synchronous buck regulator with 500 mA output current and 3.3 V fixed output. It operates from 2.7 V to 5.5 V input and supports both PWM and PFM modes for high efficiency across load ranges. Compact DFN-8 package enables space-constrained designs.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

MCP1603-330I/MCSmall Outline No-lead

Quick Facts

Manufacturer: Microchip
Package: Small Outline No-lead
Pin Count: 8
Lifecycle: ACTIVE
Datasheet: MCP1603-330I/MC Datasheet PDF
Category: Integrated Circuit
Price: From $0.4926(MOQ 1)
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of MCP1603-330I/MC?

2.0 MHz switching frequency enables use of tiny external inductors and capacitors, minimizing board space
Dual-mode PWM/PFM operation maximizes efficiency from light to full 500 mA load
Wide input range of 2.7 V to 5.5 V suits single-cell Li-ion and USB-powered applications

What is MCP1603-330I/MC used for?

The MCP1603-330I/MC is well suited for battery-powered portable devices such as smartphones, wearables, and handheld medical instruments where board space is limited and battery life is critical. Its 3.3 V fixed output and high switching frequency allow designers to use small passive components, reducing BOM cost and PCB area in IoT sensors and wireless modules.

What are the specifications of MCP1603-330I/MC?

Pbfree Code	Yes
Manufacturer Package Code	DFN-8
Factory Lead Time	22Weeks
YTEOL	8
Additional Feature	IT CAN ALSO OPERATE WITH PULSE FREQUENCY MODULATION
Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	CURRENT-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	5.5V
Input Voltage-Min	2.7V
Input Voltage-Nom	3.6V
JESD-30 Code	R-PDSO-N8
JESD-609 Code	e3
Number of Functions	1
Output Current-Max	0.5A
Output Voltage-Max	3.399V
Output Voltage-Min	3.201V
Output Voltage-Nom	3.3V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOLCC8,.08,20
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, VERY THIN PROFILE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Screening Level	TS 16949
Surface Mount	YES
Switcher Configuration	BUCK
Switching Frequency-Max	2800kHz
Temperature Grade	INDUSTRIAL
Terminal Finish	Matte Tin (Sn)
Terminal Form	NO LEAD
Terminal Pitch	0.5mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	40
Package	Small Outline No-lead

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.01
Country of Origin	Thailand

Where can I find the MCP1603-330I/MC datasheet?

MCP1603-330I/MC Datasheet Download

Official datasheet from Microchip

What are equivalent replacements for MCP1603-330I/MC?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What switching frequency does the MCP1603-330I/MC operate at, and why does it matter for component sizing?

The MCP1603-330I/MC switches at 2.0 MHz, which allows designers to use inductors as small as 1 µH and ceramic capacitors in the nF range, significantly reducing the overall footprint compared to regulators running at 200 to 400 kHz.

What input voltage range is supported by the MCP1603-330I/MC?

The device accepts an input voltage from 2.7 V to 5.5 V, making it compatible with single-cell Li-ion batteries, USB 5 V rails, and two-cell alkaline battery stacks in portable consumer and industrial designs with up to 500 mA output.

How does PFM mode benefit light-load efficiency in the MCP1603-330I/MC?

At light loads below roughly 50 mA, the regulator automatically transitions to Pulse Frequency Modulation (PFM), skipping switching cycles and reducing quiescent current, extending battery life in duty-cycled IoT and wearable applications where standby current is critical.

Is the MCP1603-330I/MC RoHS compliant, and what package is used?

Yes, the MCP1603-330I/MC is Pb-free and RoHS compliant. It is housed in an 8-pin DFN package with a compact 3 mm x 3 mm footprint, suitable for high-density PCB layouts requiring minimal board space at up to 500 mA load.

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AvailabilityIn Stock

Reference Price (USD)

From $0.4926

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Qty.	Unit Price	Ext. Price
1+	$0.7300	$0.73
25+	$0.6100	$15.25
100+	$0.5500	$55.00
1000+	$0.5300	$530.00
7500+	$0.4938	$3703.50
10050+	$0.4926	$4950.63

pcs

Unit price: $0.7300 · Total: $0.73

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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MCP1603-330I/MC Microchip Integrated Circuit (Small Outline No-lead) In Stock

What are the key features of MCP1603-330I/MC?

What is MCP1603-330I/MC used for?

What are the specifications of MCP1603-330I/MC?

Compliance & Regulatory

Where can I find the MCP1603-330I/MC datasheet?

What are equivalent replacements for MCP1603-330I/MC?

Frequently Asked Questions

What switching frequency does the MCP1603-330I/MC operate at, and why does it matter for component sizing?

What input voltage range is supported by the MCP1603-330I/MC?

How does PFM mode benefit light-load efficiency in the MCP1603-330I/MC?

Is the MCP1603-330I/MC RoHS compliant, and what package is used?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Microchip

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