NCP603SN250T1G ON Semiconductor Integrated Circuit (SOT23 (5-Pin)) In Stock

Name: NCP603SN250T1G
Brand: ON Semiconductor
SKU: NCP603SN250T1G
Availability: InStock

ON Semiconductor NCP603SN250T1G is a fixed 2.5 V, 300 mA LDO linear regulator with enable pin and enhanced ESD protection, housed in a 5-pin SOT-23 package, operating from 3 V to 6.5 V input.

OBSOLETEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

NCP603SN250T1GSOT23 (5-Pin)

Quick Facts

Manufacturer: ON Semiconductor
Package: SOT23 (5-Pin)
Pin Count: 5
Lifecycle: OBSOLETE
Datasheet: NCP603SN250T1G Datasheet PDF
Category: Integrated Circuit
Price: From $0.2193(MOQ 10)
Temp Range: -40.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of NCP603SN250T1G?

300 mA output current with low 187 mV typical dropout voltage, enabling efficient regulation from near-rail input supplies down to 3 V
Fixed 2.5 V output with enhanced ESD protection and enable pin for power sequencing and shutdown control in portable designs
Compact 5-pin SOT-23 package minimizes PCB footprint, ideal for space-constrained handheld and wearable applications

What is NCP603SN250T1G used for?

NCP603SN250T1G is used in battery-powered portable devices, IoT nodes, and handheld instruments requiring a regulated 2.5 V rail at up to 300 mA with minimal dropout. Its enable pin and enhanced ESD protection make it well-suited for power management stages in cellular accessories and industrial sensor modules operating from 3 V to 6.5 V supplies.

What are the specifications of NCP603SN250T1G?

Pbfree Code	Yes
Manufacturer Package Code	483
YTEOL	0
Adjustability	FIXED
Dropout Voltage1-Max	0.275V
Dropout Voltage1-Nom	0.187V
Input Voltage Absolute-Max	6.5V
Input Voltage-Max	6.5V
Input Voltage-Min	3V
JESD-30 Code	R-PDSO-G5
JESD-609 Code	e3
Line Regulation-Max	0.01%
Load Regulation-Max	0.045%
Number of Functions	1
Number of Outputs	1
Operating Temperature TJ-Max	125°C
Operating Temperature TJ-Min	-40 °C
Output Current1-Max	0.3A
Output Voltage1-Max	2.575V
Output Voltage1-Min	2.425V
Output Voltage1-Nom	2.5V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	TSOP5/6,.11,37
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Packing Method	TR
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Regulator Type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Surface Mount	YES
Technology	CMOS
Terminal Finish	MATTE TIN
Terminal Form	GULL WING
Terminal Pitch	0.95mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Voltage Tolerance-Max	3%
Package	SOT23 (5-Pin)

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.60

Where can I find the NCP603SN250T1G datasheet?

NCP603SN250T1G Datasheet Download

Official datasheet from ON Semiconductor

What are equivalent replacements for NCP603SN250T1G?

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

Frequently Asked Questions

What output voltage and maximum current does the NCP603SN250T1G deliver?

NCP603SN250T1G provides a fixed 2.5 V regulated output at up to 300 mA load current. With a typical dropout voltage of 187 mV and a maximum of 275 mV, it maintains regulation from input supplies as low as approximately 2.7 V, making it suitable for single-cell Li-ion and USB-powered designs requiring a stable 2.5 V rail.

How does the enable pin on NCP603SN250T1G support low-power system design?

The enable pin on NCP603SN250T1G allows the host microcontroller or power management IC to shut down the 2.5 V, 300 mA LDO output when downstream circuitry is idle, reducing quiescent current consumption to microamp levels. This is especially valuable in battery-operated IoT sensors and wearables where standby power budget is limited to extend battery life beyond hundreds of hours.

Why choose NCP603SN250T1G over a larger LDO package for a compact PCB?

NCP603SN250T1G is housed in a 5-pin SOT-23 package, one of the smallest standard LDO footprints available, occupying less than 3 mm x 3 mm of board area. For portable consumer devices and wearables where PCB space is limited to single-digit square millimeters per component, the SOT-23 outline offers the 300 mA, 2.5 V regulation needed without the area penalty of DPAK or TO-252 alternatives.

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AvailabilityIn Stock

Reference Price (USD)

From $0.2193

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
10+	$0.4600	$4.60
50+	$0.4350	$21.75
100+	$0.4120	$41.20
250+	$0.2821	$70.53
500+	$0.2692	$134.58
1000+	$0.2193	$219.30

pcs

Unit price: $0.4600 · Total: $4.60

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”

Marco Rossi

CTO, AutoDrive Systems, Italy

NCP603SN250T1G ON Semiconductor Integrated Circuit (SOT23 (5-Pin)) In Stock

What are the key features of NCP603SN250T1G?

What is NCP603SN250T1G used for?

What are the specifications of NCP603SN250T1G?

Compliance & Regulatory

Where can I find the NCP603SN250T1G datasheet?

What are equivalent replacements for NCP603SN250T1G?

Frequently Asked Questions

What output voltage and maximum current does the NCP603SN250T1G deliver?

How does the enable pin on NCP603SN250T1G support low-power system design?

Why choose NCP603SN250T1G over a larger LDO package for a compact PCB?

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 ON Semiconductor

More from ON Semiconductor

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