LM2735YQMF Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock

Name: LM2735YQMF
Brand: Texas Instruments
SKU: LM2735YQMF
Availability: InStock

LM2735YQMF is a current-mode PWM SEPIC DC-DC switching regulator by Texas Instruments with adjustable output. Key specs: 2.7 V to 5.5 V input, 3 V to 24 V adjustable output, 5-pin SOT-23 package. From $1.80, in stock with worldwide shipping.

OBSOLETEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LM2735YQMFSOT23 (5-Pin)

Quick Facts

Manufacturer: Texas Instruments
Package: SOT23 (5-Pin)
Pin Count: 5
Lifecycle: OBSOLETE
Datasheet: LM2735YQMF 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 LM2735YQMF?

SEPIC topology with 2.7 V to 5.5 V input and 3 V to 24 V adjustable output, enabling both step-up and step-down conversion from a single-cell Li-ion supply
Current-mode PWM control provides inherent cycle-by-cycle current limiting and fast line/load transient response without secondary compensation loops
Compact 5-pin SOT-23 package allows single-layer PCB routing with minimal external components for high-voltage output LED driver and boost applications

What is LM2735YQMF used for?

LM2735YQMF is suited for LED backlight drivers, white LED boost converters, and battery-powered instruments that need to generate a 12 V or 24 V rail from a 3.3 V or 5 V input supply. Its SEPIC topology allows the output voltage to be higher or lower than the input, making it flexible for applications where the input rail varies with battery state of charge. The 5-pin SOT-23 package keeps the solution footprint under 15 mm² including the external inductor and diode.

What are the specifications of LM2735YQMF?

Pbfree Code	No
YTEOL	0
Additional Feature	ALSO OPERATES IN ADJUSTABLE MODE FROM 3V TO 24V
Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	CURRENT-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	5.5V
Input Voltage-Min	2.7V
Input Voltage-Nom	5V
JESD-30 Code	R-PDSO-G5
JESD-609 Code	e0
Number of Functions	1
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	TSOP5/6,.11,37
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Surface Mount	YES
Switcher Configuration	BOOST
Switching Frequency-Max	680kHz
Temperature Grade	AUTOMOTIVE
Terminal Finish	TIN LEAD
Terminal Form	GULL WING
Terminal Pitch	0.95mm
Terminal Position	DUAL
Package	SOT23 (5-Pin)

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 LM2735YQMF datasheet?

LM2735YQMF Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM2735YQMF?

Compatible alternatives and drop-in replacements for LM2735YQMF:

LM2735YMF

Rochester Electronics LLC 3A SWITCHING REGULATOR, 680kHz SWITCHING FREQ-MAX, PDSO5, SOT-23, 5 PIN

View Part →

LM2735YMF/NOPBNational Semiconductor Corporation

Switching Regulator, Voltage-mode, 3A, 680kHz Switching Freq-Max, PDSO5

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What output voltage range can LM2735YQMF achieve from a 3.7 V Li-ion battery?

LM2735YQMF supports an adjustable output from 3 V to 24 V when the input is between 2.7 V and 5.5 V, so from a 3.7 V Li-ion cell it can generate rails from 3 V (pass-through buck mode) up to 24 V for LED strings or analog front-ends. The output is set with a resistor divider on the feedback pin.

How does the SEPIC topology of LM2735YQMF differ from a standard boost converter for battery-powered LED drivers?

Unlike a boost converter that can only step voltage up, the SEPIC topology of LM2735YQMF can step voltage both up and down, maintaining a regulated 12 V output whether the battery is at full charge (4.2 V) or nearly depleted (2.7 V). This extends usable LED brightness over the full battery discharge cycle and prevents the output from collapsing when input approaches the output voltage—a common boost converter limitation.

What switching frequency does LM2735YQMF use, and how does current-mode control help in overcurrent protection?

LM2735YQMF operates at a fixed 520 kHz switching frequency, allowing the use of a 4.7 µH to 10 µH coupled or discrete inductor. Current-mode PWM control measures the peak inductor current each switching cycle and limits it on a cycle-by-cycle basis, protecting against output short-circuit faults without a separate overcurrent sense resistor or additional protection circuitry.

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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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LM2735YQMF Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock

What are the key features of LM2735YQMF?

What is LM2735YQMF used for?

What are the specifications of LM2735YQMF?

Compliance & Regulatory

Where can I find the LM2735YQMF datasheet?

What are equivalent replacements for LM2735YQMF?

Frequently Asked Questions

What output voltage range can LM2735YQMF achieve from a 3.7 V Li-ion battery?

How does the SEPIC topology of LM2735YQMF differ from a standard boost converter for battery-powered LED drivers?

What switching frequency does LM2735YQMF use, and how does current-mode control help in overcurrent protection?

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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