LM27342SD/NOPB Texas Instruments Power Supply (Small Outline No-lead) In Stock

Name: LM27342SD/NOPB
Brand: Texas Instruments
SKU: LM27342SD/NOPB
Availability: InStock

LM27342SD/NOPB is a 2A, 42V step-down DC/DC switching regulator by Texas Instruments. Key specs: 2A output current, 4V–42V input voltage, 1.4MHz switching frequency. From $1.20, in stock with worldwide shipping.

ACTIVEPower SupplyVerified Jun 2026

Package / Visual Reference

LM27342SD/NOPBSmall Outline No-lead

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline No-lead
Pin Count: 10
Lifecycle: ACTIVE
Datasheet: LM27342SD/NOPB Datasheet PDF
Category: Power Supply
Price: From $1.4351(MOQ 1)
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 LM27342SD/NOPB?

2A continuous output current with 42V maximum input voltage for wide-input applications
1.4MHz fixed switching frequency enables use of small external inductors and capacitors
Integrated high-side MOSFET with cycle-by-cycle current limiting for robust overcurrent protection
Adjustable output voltage from 1.285V using a simple external resistor divider
Thermally enhanced WSON-8 package (SD suffix) for compact, low-profile designs

What is LM27342SD/NOPB used for?

The LM27342SD/NOPB is well-suited for industrial power supplies, automotive infotainment systems, and telecom equipment where a wide input voltage range is required. It is commonly used to generate point-of-load rails from unregulated 12V or 24V bus voltages in embedded computing and networking hardware. Its high switching frequency and small package also make it ideal for space-constrained portable and handheld devices.

What are the specifications of LM27342SD/NOPB?

Pbfree Code	Yes
YTEOL	15
Additional Feature	ALSO OPERATES IN ADJUSTABLE MODE FROM 1V TO 18V
Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	CURRENT-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	20V
Input Voltage-Min	3V
Input Voltage-Nom	12V
JESD-30 Code	S-PDSO-N10
JESD-609 Code	e3
Number of Functions	1
Number of Outputs	1
Output Current-Max	2A
Output Voltage-Max	18V
Output Voltage-Min	1V
Output Voltage-Nom	3.9V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOLCC10,.12,20
Package Shape	SQUARE
Package Style	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Surface Mount	YES
Switcher Configuration	BUCK
Switching Frequency-Max	2300kHz
Temperature Grade	AUTOMOTIVE
Terminal Finish	Matte Tin (Sn)
Terminal Form	NO LEAD
Terminal Pitch	0.5mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Package	Small Outline No-lead

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.90

Where can I find the LM27342SD/NOPB datasheet?

LM27342SD/NOPB Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM27342SD/NOPB?

Compatible alternatives and drop-in replacements for LM27342SD/NOPB:

LM27342SDTexas Instruments

Switching Regulator, Current-mode, 4A, 2300kHz Switching Freq-Max, PDSO10

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the input voltage range of the LM27342SD/NOPB?

The LM27342SD/NOPB accepts an input voltage from 4V to 42V, making it suitable for a wide range of industrial, automotive, and telecom applications where the input bus can vary significantly.

What output current can the LM27342SD/NOPB deliver?

The LM27342SD/NOPB is rated for a continuous output current of 2A. It includes cycle-by-cycle current limiting to protect against overload conditions while maintaining stable regulation.

What is the switching frequency of the LM27342SD/NOPB?

The LM27342SD/NOPB operates at a fixed 1.4MHz switching frequency. This high frequency allows designers to use smaller external passive components, reducing overall solution size and BOM cost.

What package does the LM27342SD/NOPB use?

The LM27342SD/NOPB comes in an 8-pin WSON (thermally enhanced SON) package. The exposed thermal pad improves heat dissipation and keeps junction temperature low at full load.

Can the LM27342SD/NOPB be used in automotive designs?

Yes. The 42V maximum input voltage and wide operating temperature range make the LM27342SD/NOPB a strong candidate for automotive infotainment, ADAS power rails, and other 12V/24V automotive bus applications.

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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 $1.4351

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$4.3914	$4.39
50+	$1.5686	$78.43
150+	$1.5019	$225.28
250+	$1.4351	$358.78

pcs

Unit price: $4.3914 · Total: $4.39

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

“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”

Rajesh Patel

Procurement Manager, VoltEdge Energy, India

LM27342SD/NOPB Texas Instruments Power Supply (Small Outline No-lead) In Stock

What are the key features of LM27342SD/NOPB?

What is LM27342SD/NOPB used for?

What are the specifications of LM27342SD/NOPB?

Compliance & Regulatory

Where can I find the LM27342SD/NOPB datasheet?

What are equivalent replacements for LM27342SD/NOPB?

Frequently Asked Questions

What is the input voltage range of the LM27342SD/NOPB?

What output current can the LM27342SD/NOPB deliver?

What is the switching frequency of the LM27342SD/NOPB?

What package does the LM27342SD/NOPB use?

Can the LM27342SD/NOPB be used in automotive designs?

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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