LM3578AM Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Name: LM3578AM
Brand: Texas Instruments
SKU: LM3578AM
Availability: InStock

LM3578AM is a current-mode PWM switching regulator IC supporting 2V–40V input, 8-pin SOIC package, ideal for DC-DC buck/boost converters. From $0.93 in stock with worldwide shipping.

OBSOLETEIntegrated CircuitVerified May 2026

Package / Visual Reference

LM3578AMSmall Outline Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline Packages
Pin Count: 8
Lifecycle: OBSOLETE
Datasheet: LM3578AM Datasheet PDF
Category: Integrated Circuit
Price: From $0.9310(MOQ 1)
Temp Range: ?°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LM3578AM?

Current-mode PWM control for fast transient response and cycle-by-cycle current limiting
Wide input voltage range of 2V to 40V supports diverse power supply designs
Compact 8-pin SOIC (R-PDSO-G8) package for space-constrained applications
Adjustable output voltage and frequency via external components
Lead-free (Pb-free) construction compliant with RoHS environmental standards

What is LM3578AM used for?

The LM3578AM is widely used in DC-DC buck, boost, and flyback converter designs for industrial power supplies and embedded systems. Its current-mode PWM architecture makes it suitable for battery-powered devices, point-of-load regulators, and telecom equipment requiring tight output voltage regulation. It is also employed in motor drive pre-regulators and general-purpose switching power supplies where a wide input voltage range is essential.

What are the specifications of LM3578AM?

Pbfree Code	Yes
Date Of Intro	1989-01-01
YTEOL	0
Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	CURRENT-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	40V
Input Voltage-Min	2V
JESD-30 Code	R-PDSO-G8
JESD-609 Code	e0
Number of Functions	1
Number of Outputs	1
Output Current-Max	0.75A
Output Voltage-Min	1V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOP8,.25
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	235
Qualification Status	Not Qualified
Supply Current-Max (Isup)	4mA
Surface Mount	YES
Switcher Configuration	BUCK-BOOST
Switching Frequency-Max	100kHz
Technology	BIPOLAR
Temperature Grade	OTHER
Terminal Finish	Tin/Lead (Sn/Pb)
Terminal Form	GULL WING
Terminal Pitch	1.27mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
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

Where can I find the LM3578AM datasheet?

LM3578AM Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM3578AM?

Compatible alternatives and drop-in replacements for LM3578AM:

LM3578AM/NOPBNational Semiconductor Corporation

Switching Regulator, Current-mode, 0.75A, 24kHz Switching Freq-Max, BIPolar, PDSO8

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the input voltage range of the LM3578AM?

The LM3578AM accepts an input voltage from 2V to 40V, making it versatile for a wide range of power supply applications including battery-powered systems and industrial equipment operating from unregulated rails.

What control method does the LM3578AM use?

The LM3578AM uses current-mode pulse width modulation (PWM) control, which provides inherent cycle-by-cycle current limiting, improved line transient response, and easier compensation compared to voltage-mode controllers.

What package is the LM3578AM available in?

The LM3578AM is available in an 8-pin Small Outline Package (SOIC, JESD-30 code R-PDSO-G8), which is a compact surface-mount package suitable for high-density PCB designs.

What are typical applications for the LM3578AM?

Typical applications include DC-DC buck converters, boost converters, flyback power supplies, point-of-load regulators for industrial and telecom equipment, and battery-powered portable devices requiring efficient voltage conversion.

Is the LM3578AM RoHS compliant?

Yes, the LM3578AM carries a Pb-free (lead-free) code indicating it meets RoHS environmental compliance requirements, making it suitable for use in products destined for markets with strict hazardous substance regulations.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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AvailabilityIn Stock

Reference Price (USD)

From $0.9310

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$2.6600	$2.66
46+	$0.9975	$45.89
151+	$0.9310	$140.58

pcs

Unit price: $2.6600 · Total: $2.66

In Stock · 24h Response · Worldwide Shipping

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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Procurement Manager, VoltEdge Energy, India

LM3578AM Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LM3578AM?

What is LM3578AM used for?

What are the specifications of LM3578AM?

Compliance & Regulatory

Where can I find the LM3578AM datasheet?

What are equivalent replacements for LM3578AM?

Frequently Asked Questions

What is the input voltage range of the LM3578AM?

What control method does the LM3578AM use?

What package is the LM3578AM available in?

What are typical applications for the LM3578AM?

Is the LM3578AM RoHS compliant?

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 Texas Instruments

More from Texas Instruments

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