TC1044SEOA Microchip Integrated Circuit (Small Outline Packages) In Stock

Name: TC1044SEOA
Brand: Microchip
SKU: TC1044SEOA
Availability: InStock

The Microchip TC1044SEOA is a switched-capacitor voltage converter that inverts a positive supply to a negative output, delivering up to 20 mA with an oscillator frequency of 45 kHz. Operating from a 1.5 V to 12 V input, it suits portable and battery-powered designs requiring a negative rail in an SOIC-8 package.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

TC1044SEOASmall Outline Packages

Quick Facts

Manufacturer: Microchip
Package: Small Outline Packages
Pin Count: 8
Lifecycle: ACTIVE
Datasheet: TC1044SEOA Datasheet PDF
Category: Integrated Circuit
Price: From $0.9202(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 TC1044SEOA?

Inverts positive input voltage to regulated negative output up to -12 V
Delivers up to 20 mA output current for light-load negative-rail circuits
Internal oscillator at 45 kHz with optional external frequency control
Wide input voltage range from 1.5 V to 12 V covers battery and regulated supplies
Space-efficient SOIC-8 package suitable for compact PCB layouts

What is TC1044SEOA used for?

The TC1044SEOA is widely used in portable instruments, handheld test equipment, and medical devices where a negative supply rail must be derived from a single positive battery. It also finds use in op-amp biasing circuits, LCD contrast control, and data-acquisition systems that require a small negative voltage from an existing 5 V or 3.3 V bus.

What are the specifications of TC1044SEOA?

Pbfree Code	Yes
Manufacturer Package Code	SOIC-8
Factory Lead Time	15Weeks
YTEOL	8
Analog IC - Other Type	SWITCHED CAPACITOR REGULATOR
Input Voltage-Max	12V
Input Voltage-Min	1.5V
Input Voltage-Nom	5V
JESD-30 Code	R-PDSO-G8
JESD-609 Code	e3
Number of Functions	1
Output Voltage-Max	-12 V
Output Voltage-Min	-1.5 V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOP8,.25
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Supply Current-Max (Isup)	0.18mA
Surface Mount	YES
Switcher Configuration	DOUBLER INVERTER
Switching Frequency-Max	45kHz
Temperature Grade	INDUSTRIAL
Terminal Finish	Matte Tin (Sn)
Terminal Form	GULL WING
Terminal Pitch	1.27mm
Terminal Position	DUAL
Package	Small Outline Packages

Compliance & Regulatory

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

Where can I find the TC1044SEOA datasheet?

TC1044SEOA Datasheet Download

Official datasheet from Microchip

What are equivalent replacements for TC1044SEOA?

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

Frequently Asked Questions

How much output current can TC1044SEOA supply from a 5 V input when inverting to a negative rail?

TC1044SEOA can supply up to 20 mA of output current when operating from a 5 V input rail, making it suitable for light-load negative-supply circuits such as op-amp biasing, LCD contrast, and reference voltage generation in portable designs.

What is the typical oscillator frequency of TC1044SEOA and how does it affect output ripple?

The internal oscillator runs at 45 kHz, which sets the switching rate of the charge-pump capacitors. Higher frequency reduces the required external capacitor size and lowers output ripple, enabling compact filter sections with capacitors in the 10 µF range for most applications.

Is TC1044SEOA suitable for battery-powered designs operating down to 1.5 V input?

Yes. TC1044SEOA operates over a wide input voltage range from 1.5 V to 12 V, so it functions with a single alkaline or NiMH cell down to approximately 1.5 V. This makes it viable for low-power portable instruments across its full -40°C to 85°C temperature range.

What are the RoHS compliance and package details for TC1044SEOA when qualifying it for a lead-free BOM?

TC1044SEOA is supplied in an SOIC-8 package and carries a Pb-free (e3) JEDEC finish code, confirming lead-free solder compatibility. The RoHS-compliant construction makes it straightforward to include on a lead-free BOM without additional exemption tracking.

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AvailabilityIn Stock

Reference Price (USD)

From $0.9202

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$1.2540	$1.25
2+	$0.9202	$1.84

pcs

Unit price: $1.2540 · Total: $1.25

In Stock · 24h Response · Worldwide Shipping

Direct Contact

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”

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Supply Chain Director, CircuitPro Ltd, UK

TC1044SEOA Microchip Integrated Circuit (Small Outline Packages) In Stock

What are the key features of TC1044SEOA?

What is TC1044SEOA used for?

What are the specifications of TC1044SEOA?

Compliance & Regulatory

Where can I find the TC1044SEOA datasheet?

What are equivalent replacements for TC1044SEOA?

Frequently Asked Questions

How much output current can TC1044SEOA supply from a 5 V input when inverting to a negative rail?

What is the typical oscillator frequency of TC1044SEOA and how does it affect output ripple?

Is TC1044SEOA suitable for battery-powered designs operating down to 1.5 V input?

What are the RoHS compliance and package details for TC1044SEOA when qualifying it for a lead-free BOM?

Related Guides

150141RS73100 Red LED Indicator and Current-Resistor Design Guide

742792651 Ferrite Bead EMI Filter and Power Integrity Design Guide

How to Choose a Ferrite Bead for EMI Suppression Rails: Selection Guide

150141BS73100 Design Guide for 3528 Status Indicator LED Circuits

Why Buy from FindMyChip

About Microchip

More from Microchip

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