LM1771UMM Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Name: LM1771UMM
Brand: Texas Instruments
SKU: LM1771UMM
Availability: InStock

LM1771UMM is a voltage-mode synchronous buck controller from Texas Instruments supporting 2.8V–5.5V input with PWM control. Ideal for low-voltage DC-DC conversion in portable and embedded applications. From $0.41, in stock with worldwide shipping.

OBSOLETEIntegrated CircuitVerified May 2026

Package / Visual Reference

LM1771UMMSmall Outline Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline Packages
Pin Count: 8
Lifecycle: OBSOLETE
Datasheet: LM1771UMM Datasheet PDF
Category: Integrated Circuit
Price: From $0.4105(MOQ 362)
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 LM1771UMM?

Voltage-mode PWM control for precise output regulation
Wide input voltage range: 2.8V to 5.5V (nominal 3.3V)
Synchronous buck topology for high efficiency
Compact 8-pin MSOP package for space-constrained designs
RoHS-compliant, suitable for modern consumer and industrial electronics

What is LM1771UMM used for?

The LM1771UMM is well-suited for portable consumer electronics, battery-powered devices, and embedded systems requiring efficient step-down DC-DC conversion. Its 2.8V–5.5V input range makes it ideal for single-cell Li-ion or regulated 3.3V rail applications. It is also used in DSP/FPGA core power supplies and low-power industrial control boards.

What are the specifications of LM1771UMM?

Pbfree Code	No
YTEOL	0
Analog IC - Other Type	SWITCHING CONTROLLER
Control Mode	VOLTAGE-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	5.5V
Input Voltage-Min	2.8V
Input Voltage-Nom	3.3V
JESD-30 Code	S-XDSO-G8
JESD-609 Code	e0
Number of Functions	1
Package Body Material	UNSPECIFIED
Package Equivalence Code	TSSOP8,.1
Package Shape	SQUARE
Package Style	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Surface Mount	YES
Switcher Configuration	PUSH-PULL
Switching Frequency-Max	1000kHz
Temperature Grade	AUTOMOTIVE
Terminal Finish	Tin/Lead (Sn/Pb)
Terminal Form	GULL WING
Terminal Pitch	0.65mm
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

Where can I find the LM1771UMM datasheet?

LM1771UMM Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM1771UMM?

Compatible alternatives and drop-in replacements for LM1771UMM:

LM1771UMM/NOPBTexas Instruments

Switching Controller, Voltage-mode, 6A, 2000kHz Switching Freq-Max, CMOS

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the input voltage range of the LM1771UMM?

The LM1771UMM supports an input voltage range of 2.8V to 5.5V, with a nominal operating voltage of 3.3V. This makes it compatible with single-cell lithium-ion batteries and standard 3.3V regulated supplies.

What control method does the LM1771UMM use?

The LM1771UMM uses voltage-mode pulse width modulation (PWM) as its control technique, enabling stable and precise output voltage regulation in synchronous buck converter designs.

What are typical applications for the LM1771UMM?

Typical applications include portable consumer electronics, battery-powered embedded systems, DSP and FPGA core power supplies, and low-power industrial control equipment requiring efficient step-down DC-DC conversion.

What package does the LM1771UMM come in, and where can I buy it?

The LM1771UMM comes in an 8-pin MSOP (S-XDSO-G8) small outline package. It is available from major distributors worldwide starting from approximately $0.41 per unit, with global shipping options.

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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 $0.4105

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
362+	$0.8300	$300.46
1000+	$0.5495	$549.50
10000+	$0.4900	$4900.00
100000+	$0.4105	$41050.00

pcs

Unit price: $0.8300 · Total: $300.46

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

LM1771UMM Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LM1771UMM?

What is LM1771UMM used for?

What are the specifications of LM1771UMM?

Compliance & Regulatory

Where can I find the LM1771UMM datasheet?

What are equivalent replacements for LM1771UMM?

Frequently Asked Questions

What is the input voltage range of the LM1771UMM?

What control method does the LM1771UMM use?

What are typical applications for the LM1771UMM?

What package does the LM1771UMM come in, and where can I buy it?

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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