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Part No LM2734YMK
Manufacturer Texas Instruments
Catalog PMIC - Voltage Regulators - DC DC Switching Regulators
Description LM2734 Thin SOT 1A Load Step-Down DC-DC Regulator | IC REG BUCK ADJ 1A TSOT23-6
Rohs State Need to verify

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Pricing & Ordering $2.0088 Historical reference price : is the price that a customer announces that it is willing to pay for this component in the previous period, only for reference.
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Availability: 33,761 pieces
MOQ: 16 pcs
Order Increment : 1 pcs
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Products specifications

Categories Integrated Circuits
Manufacturer Texas Instruments
Packaging Reel
Function Step-Down
Topology Buck
Output Type Adjustable
Voltage - Input (Minimum) 3V
Voltage - Input (Maximum) 20V
Min/Fixed Output Voltage 0.8V
Maximum Output Voltage 18V
Output Current 1A
Switching Frequency 550kHz
Temperature Range - Operating -40°C ~ 125°C
Mounting Style SMD
Manufacturer Package SOT-23-6 Thin, TSOT-23-6
Supplier Device Package TSOT-23-6
Family Part Number LM2734
Manufacturer Pack Quantity 1
MSL Level 1 (Unlimited)
Win Source Part Number 1197942-LM2734YMK
Manufacturer Homepage
Is this a common-used part? Yes
Popularity High
Fake Threat In the Open Market 44 pct.
Supply and Demand Status Balance
Application Field Used in Power Management, Consumer Electronics, Communications & Networking, Computers & Computer Peripherals, Automotive
Family Name LM2734
Introduction Date September 01, 2004
Country of Origin Malaysia
Halogen Free Compliant
Estimated EOL Date 2028
Alternative Parts
LM2734YQMK;  LM2734YQMKE; LM2734YQMKX;  


The LM2734YMK from Texas Instruments is a compact, highly efficient, and versatile switching regulator designed for a wide range of applications. This small form factor, integrated circuit is a part of TI's extensive family of power management solutions, built to cater to the growing demands for low-power, high-performance electronic devices.

Key Features

  • High Efficiency: The LM2734YMK boasts high-efficiency power conversion, which can reach up to 90%, thereby reducing heat generation and improving system reliability.
  • Adjustable Switching Frequency: With an adjustable switching frequency that ranges from 300 kHz to 2 MHz, designers can optimize the regulator for size, efficiency, and output ripple.
  • Small Package: Available in an ultra-small SOT-23 package, it is ideal for space-constrained applications.
  • Wide Input Voltage Range: It operates with an input voltage range from 2.7V to 5.5V, accommodating a variety of power sources.
  • Output Voltage: The output voltage is adjustable from 0.6V to VIN, making it highly versatile for different applications.
  • Integrated Features: This regulator includes internal compensation, a fixed-frequency oscillator, a feedback voltage reference, and over-temperature protection.
  • Load Capability: It can deliver up to 1A of continuous output current.


The LM2734YMK is suitable for a plethora of applications, including but not limited to:

  • Portable and battery-powered devices
  • Wireless and DSL modems
  • Point of Load (POL) conversions
  • Low-voltage subsystems
  • Energy-efficient and compact power supplies

Design and Support

Designers can take advantage of Texas Instruments' comprehensive design support, including simulation tools, reference designs, and technical documentation, to accelerate the product development cycle. With the LM2734YMK, engineers have a reliable and high-performing solution to meet the stringent requirements of modern electronic designs.

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