MCP1790-3002E/DB Microchip Integrated Circuit (SOT223 (3-Pin)) In Stock

Name: MCP1790-3002E/DB
Brand: Microchip
SKU: MCP1790-3002E/DB
Availability: InStock

MCP1790-3002E/DB is a fixed 3.0 V LDO linear voltage regulator with 70 mA output current, 6 V to 30 V input range, and 0.7 V typical dropout in a 4-pin SOT-223 package. Designed for high-input-voltage industrial and automotive regulation applications.

OBSOLETEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

MCP1790-3002E/DBSOT223 (3-Pin)

Quick Facts

Manufacturer: Microchip
Package: SOT223 (3-Pin)
Pin Count: 3
Lifecycle: OBSOLETE
Datasheet: MCP1790-3002E/DB Datasheet PDF
Category: Integrated Circuit
Price: From $0.7913(MOQ 1)
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of MCP1790-3002E/DB?

Fixed 3.0 V output with ±2.5% accuracy over temperature
Wide input voltage range from 6 V to 30 V with 48 V absolute maximum
Low dropout voltage of 0.7 V typical at 70 mA output
70 mA continuous output current capability
SOT-223 4-pin package with exposed pad for improved thermal dissipation
Internal overcurrent and thermal shutdown protection

What is MCP1790-3002E/DB used for?

MCP1790-3002E/DB is used to generate a stable 3.0 V supply for microcontrollers and sensors in industrial equipment powered from 12 V or 24 V rails. Its wide 30 V input range makes it compatible with automotive 12 V battery systems and transient voltage spikes without additional clamping. It also serves as a local post-regulator in power distribution boards where regulated outputs feed low-power logic circuits.

What are the specifications of MCP1790-3002E/DB?

Pbfree Code	Yes
Manufacturer Package Code	SOT-223-3
YTEOL	0
Adjustability	FIXED
Dropout Voltage1-Max	1.3V
Dropout Voltage1-Nom	0.7V
Input Voltage Absolute-Max	48V
Input Voltage-Max	30V
Input Voltage-Min	6V
JESD-30 Code	R-PDSO-G4
JESD-609 Code	e3
Line Regulation-Max	0.036%
Load Regulation-Max	0.0135%
Number of Functions	1
Number of Outputs	1
Operating Temperature TJ-Max	125°C
Operating Temperature TJ-Min	-40 °C
Output Current1-Max	0.07A
Output Voltage1-Max	3.075V
Output Voltage1-Min	2.925V
Output Voltage1-Nom	3V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOT-223
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, HEAT SINK/SLUG
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	2.3mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	40
Voltage Tolerance-Max	2.5%
Package	SOT223 (3-Pin)

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 3
ECCN	EAR99
HTS Code	8542.39.00.01
Country of Origin	Taiwan, Thailand

Where can I find the MCP1790-3002E/DB datasheet?

MCP1790-3002E/DB Datasheet Download

Official datasheet from Microchip

What are equivalent replacements for MCP1790-3002E/DB?

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

Frequently Asked Questions

What is the input voltage range of MCP1790-3002E/DB and how wide a supply can it handle?

MCP1790-3002E/DB accepts input voltages from 6 V to 30 V continuously, with an absolute maximum rating of 48 V. This wide range allows it to regulate from unregulated 12 V or 24 V industrial supplies while tolerating load dump transients common in automotive and factory environments.

How much power does MCP1790-3002E/DB dissipate when running from a 24 V supply at 70 mA output?

At 24 V input and 3.0 V output, the voltage drop across MCP1790-3002E/DB is 21 V. At the maximum 70 mA load, the device dissipates approximately 1.47 W, so the SOT-223 package's exposed tab must be soldered to a copper pour or heatsink to keep junction temperature below 125 °C.

For a sensor node on a 12 V automotive rail, why is MCP1790-3002E/DB preferable to a switching regulator?

MCP1790-3002E/DB requires no inductor, produces no switching noise, and has simpler EMC filtering, which is critical for sensor analog front-ends sensitive to 100 kHz–10 MHz switching harmonics. Its fixed 3.0 V output with ±2.5% accuracy and internal protection make it a lower-BOM-cost solution when the 70 mA current limit and linear dissipation are acceptable.

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AvailabilityIn Stock

Reference Price (USD)

From $0.7913

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Qty.	Unit Price	Ext. Price
1+	$2.1100	$2.11
10+	$1.1869	$11.87
35+	$0.9812	$34.34
58+	$0.7913	$45.90

pcs

Unit price: $2.1100 · Total: $2.11

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OriginChina (Authorized)

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MCP1790-3002E/DB Microchip Integrated Circuit (SOT223 (3-Pin)) In Stock

What are the key features of MCP1790-3002E/DB?

What is MCP1790-3002E/DB used for?

What are the specifications of MCP1790-3002E/DB?

Compliance & Regulatory

Where can I find the MCP1790-3002E/DB datasheet?

What are equivalent replacements for MCP1790-3002E/DB?

Frequently Asked Questions

What is the input voltage range of MCP1790-3002E/DB and how wide a supply can it handle?

How much power does MCP1790-3002E/DB dissipate when running from a 24 V supply at 70 mA output?

For a sensor node on a 12 V automotive rail, why is MCP1790-3002E/DB preferable to a switching regulator?

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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