MCP1703T-1802E/CB Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock

Name: MCP1703T-1802E/CB
Brand: Microchip
SKU: MCP1703T-1802E/CB
Availability: InStock

Microchip MCP1703T-1802E/CB is a 250mA LDO linear regulator with a fixed 1.8V output and ultra-low 2µA quiescent current in a compact SOT-23A-3 package. It supports input voltages up to 16V with 0.9V dropout and is ideal for battery-powered IoT and embedded systems.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

MCP1703T-1802E/CBSOT23 (3-Pin)

Quick Facts

Manufacturer: Microchip
Package: SOT23 (3-Pin)
Pin Count: 3
Lifecycle: ACTIVE
Datasheet: MCP1703T-1802E/CB Datasheet PDF
Category: Integrated Circuit
Price: From $0.2452(MOQ 10)
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of MCP1703T-1802E/CB?

Fixed 1.8V output with 250mA maximum output current for stable low-voltage MCU and sensor rails
Ultra-low 2µA quiescent current extends battery life in portable and IoT applications
Wide input voltage range of 2.7V to 16V with 0.9V dropout voltage in a compact SOT-23A-3 package

What is MCP1703T-1802E/CB used for?

The MCP1703T-1802E/CB is well-suited for battery-powered IoT devices, wireless sensor nodes, and portable consumer electronics requiring a regulated 1.8V supply. Its ultra-low quiescent current of 2µA makes it an excellent choice for sleep-mode circuits and energy-harvesting systems. The device also fits industrial microcontroller boards and handheld instruments where space and power efficiency are critical.

What are the specifications of MCP1703T-1802E/CB?

Pbfree Code	Yes
Manufacturer Package Code	SOT-23A-3
YTEOL	8
Adjustability	FIXED
Dropout Voltage1-Nom	0.9V
Input Voltage Absolute-Max	18V
Input Voltage-Max	16V
Input Voltage-Min	2.7V
JESD-30 Code	R-PDSO-G3
JESD-609 Code	e3
Line Regulation-Max	0.07182%
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	0.2A
Output Voltage1-Max	1.836V
Output Voltage1-Min	1.764V
Output Voltage1-Nom	1.8V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	TO-236
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, LOW 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 (Sn)
Terminal Form	GULL WING
Terminal Pitch	0.95mm
Terminal Position	DUAL
Voltage Tolerance-Max	2%
Package	SOT23 (3-Pin)

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	Taiwan, Thailand

Where can I find the MCP1703T-1802E/CB datasheet?

MCP1703T-1802E/CB Datasheet Download

Official datasheet from Microchip

What are equivalent replacements for MCP1703T-1802E/CB?

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

Frequently Asked Questions

What is the maximum output current the MCP1703T-1802E/CB can deliver?

The MCP1703T-1802E/CB provides up to 250mA of output current at a fixed 1.8V output, making it suitable for powering microcontrollers, RF modules, and sensor arrays in space-constrained PCB designs.

How does the MCP1703T-1802E/CB perform in low-power battery applications?

With only 2µA quiescent current, the MCP1703T-1802E/CB is ideal for sleep-mode battery circuits; a standard 1000mAh lithium cell loses less than 1% capacity over 6 months from regulator standby alone, enabling multi-year coin-cell lifetimes.

Which input voltage range does the MCP1703T-1802E/CB support?

The regulator accepts input voltages from 2.7V to 16V, with a maximum absolute rating of 18V. The 0.9V dropout voltage means input must stay at least 2.7V for proper 1.8V regulation across the 250mA load range.

When is MCP1703T-1802E/CB a better choice than a switching regulator for a 1.8V rail?

For loads below 100mA where board area is under 10 mm² and noise-sensitive analog circuits require a ripple-free 1.8V rail, the MCP1703T-1802E/CB outperforms switching regulators by eliminating switching noise and requiring only 2 external capacitors for stability.

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AvailabilityIn Stock

Reference Price (USD)

From $0.2452

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Qty.	Unit Price	Ext. Price
10+	$0.7530	$7.53
25+	$0.6860	$17.15
50+	$0.6840	$34.20
100+	$0.5600	$56.00
500+	$0.2493	$124.65
1000+	$0.2452	$245.20

pcs

Unit price: $0.7530 · Total: $7.53

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Lead Time3-7 business days

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OriginChina (Authorized)

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MCP1703T-1802E/CB Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock

What are the key features of MCP1703T-1802E/CB?

What is MCP1703T-1802E/CB used for?

What are the specifications of MCP1703T-1802E/CB?

Compliance & Regulatory

Where can I find the MCP1703T-1802E/CB datasheet?

What are equivalent replacements for MCP1703T-1802E/CB?

Frequently Asked Questions

What is the maximum output current the MCP1703T-1802E/CB can deliver?

How does the MCP1703T-1802E/CB perform in low-power battery applications?

Which input voltage range does the MCP1703T-1802E/CB support?

When is MCP1703T-1802E/CB a better choice than a switching regulator for a 1.8V rail?

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

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About Microchip

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