LM27342SD Texas Instruments Integrated Circuit (Other) In Stock

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

LM27342SD is a current-mode PWM step-down DC/DC regulator with 3V–20V input range, adjustable output from 1V to 18V, and up to 1.5A output current. Ideal for portable and industrial power applications.

OBSOLETEIntegrated CircuitVerified May 2026

Package / Visual Reference

LM27342SDOther

Quick Facts

Manufacturer: Texas Instruments
Package: Other
Pin Count: 10
Lifecycle: OBSOLETE
Datasheet: LM27342SD Datasheet PDF
Category: Integrated Circuit
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?

Current-mode PWM control for fast transient response and excellent line/load regulation
Wide input voltage range: 3V to 20V, supports 5V, 12V, and automotive rails
Adjustable output voltage from 1V to 18V covers diverse regulation needs
Compact 10-pin MSOP package enables high-density PCB layouts
Pulse Width Modulation technique ensures high efficiency across load range

What is LM27342SD used for?

The LM27342SD is widely used in portable electronics, industrial control systems, and battery-powered devices requiring efficient DC-DC conversion. It suits point-of-load regulation in telecom equipment, embedded systems, and automotive sub-systems where a stable, adjustable voltage rail is needed from a 3V–20V supply.

What are the specifications of LM27342SD?

Pbfree Code	No
YTEOL	0
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	e0
Number of Functions	1
Output Current-Max	4A
Output Voltage-Max	18V
Output Voltage-Min	1V
Package Body Material	PLASTIC/EPOXY
Package Shape	SQUARE
Package Style	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Qualification Status	Not Qualified
Surface Mount	YES
Switcher Configuration	BUCK
Switching Frequency-Max	2300kHz
Temperature Grade	AUTOMOTIVE
Terminal Finish	TIN LEAD
Terminal Form	NO LEAD
Terminal Pitch	0.5mm
Terminal Position	DUAL
Package	Other

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 LM27342SD datasheet?

LM27342SD Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM27342SD?

Compatible alternatives and drop-in replacements for LM27342SD:

LM27342SD/NOPBTexas Instruments

Switching Regulator, Current-mode, 2A, 2300kHz Switching Freq-Max, PDSO10

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the input voltage range of the LM27342SD?

The LM27342SD operates with an input voltage from 3V to 20V, with a nominal operating point of 12V, making it suitable for 5V USB rails, 12V adapters, and automotive power systems.

What output voltage range does the LM27342SD support?

The LM27342SD supports an adjustable output voltage range from 1V to 18V, allowing designers to set the regulated output precisely for a wide variety of load requirements in industrial and consumer applications.

What control method does the LM27342SD use and why does it matter?

The LM27342SD uses current-mode pulse width modulation (PWM) control, which provides inherent cycle-by-cycle current limiting, excellent transient response, and simplified loop compensation compared to voltage-mode controllers.

What package is the LM27342SD available in?

The LM27342SD is available in a 10-pin MSOP (S-PDSO-N10) surface-mount package, which offers a small PCB footprint suitable for space-constrained designs in portable and embedded systems.

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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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LM27342SD Texas Instruments Integrated Circuit (Other) In Stock

What are the key features of LM27342SD?

What is LM27342SD used for?

What are the specifications of LM27342SD?

Compliance & Regulatory

Where can I find the LM27342SD datasheet?

What are equivalent replacements for LM27342SD?

Frequently Asked Questions

What is the input voltage range of the LM27342SD?

What output voltage range does the LM27342SD support?

What control method does the LM27342SD use and why does it matter?

What package is the LM27342SD available in?

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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