LM2734YMK

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LM2734YMK

IC REG BUCK ADJ 1A TSOT23-6

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Specifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Not For New Designs
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 3V
Voltage-Input(Max) 20V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 18V
Current-Output 1A
Frequency-Switching 550kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case SOT-23-6 Thin, TSOT-23-6

Overview

Description

The LM2734YMK is a high-frequency, step-down DC-DC converter designed by Texas Instruments. It is known for its efficiency and compact size, making it suitable for applications requiring a small footprint. The device operates with an input voltage range from 3.0V to 20V and can deliver up to 1A of continuous output current. With a switching frequency up to 3MHz, it allows for the use of small external components, which is ideal for space-constrained designs.
The LM2734YMK incorporates several features to enhance performance and reliability. These include internal compensation, soft-start functionality, and cycle-by-cycle current limiting. Its efficiency is further boosted by its ability to operate in pulse frequency modulation (PFM) mode at light loads, thereby reducing power consumption. Additionally, the device offers protection features such as thermal shutdown and short-circuit protection.
The LM2734YMK is commonly used in a variety of applications, including portable devices, point-of-load converters, and distributed power systems. Its compact size and robust performance make it an excellent choice for engineers designing power solutions in compact electronic systems.

Features

The LM2734YMK is a high-frequency, step-down DC-DC converter designed for efficient power management applications. Key features include:
1. Wide Input Voltage Range: It operates from 3.0V to 20V, accommodating various input power sources.
2. Output Current: Capable of delivering up to 1A of continuous output current, suitable for powering moderate loads.
3. Efficiency: High efficiency due to its synchronous rectification design, reducing power loss.
4. Switching Frequency: Operates at a fixed frequency of 1.6 MHz, allowing the use of smaller external components.
5. Low Switch Duty Cycle: Allows for a wide range of output voltages.
6. Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout to ensure safe operation.
7. Soft-Start Capability: Integrated soft-start function to minimize inrush current during start-up.
8. Compact Package: Available in a small SOT-23 package, making it suitable for space-constrained applications.
These features make the LM2734YMK ideal for use in portable devices, set-top boxes, and other applications requiring efficient step-down voltage conversion.

Package

The LM2734YMK is a 20-pin package, specifically a Power MSOP-8 (Mini Small Outline Package) with an exposed pad. It is part of TI's SIMPLE SWITCHER® series and is designed for applications requiring high-efficiency step-down voltage conversion.

Pinout

The LM2734YMK is a high-frequency, step-down DC-DC converter from Texas Instruments. It is available in a 6-pin SOT-23 package. The pin functions are as follows:
1. SW (Pin 1): Switch output. Connects to the inductor and catches the free-wheeling diode.
2. GND (Pin 2): Ground. Common ground reference for the device.
3. FB (Pin 3): Feedback. Connects to the output voltage divider to set the output voltage.
4. EN (Pin 4): Enable. Used to enable or disable the device.
5. VIN (Pin 5): Input voltage. Supplies power to the IC.
6. BOOT (Pin 6): Boost capacitor connection. Needed for driving the internal high-side MOSFET.
This device is designed for efficient voltage step-down conversion with a switching frequency of up to 3 MHz, suitable for compact applications.

Manufacturer

The LM2734YMK is manufactured by Texas Instruments. Texas Instruments is a technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronic devices. The company is known for producing components that support a wide range of applications, including industrial, automotive, personal electronics, and communications equipment.

Application

The LM2734YMK is a step-down DC-DC converter commonly used in applications requiring efficient voltage regulation. It is ideal for use in distributed power systems, portable devices, battery-powered equipment, point-of-load regulation, and LED lighting. Its compact size and high efficiency make it suitable for consumer electronics, communication equipment, and industrial applications.

Equivalent

Equivalent products to the LM2734YMK, a DC-DC step-down regulator, include the TPS5410, TPS5430, and LM2596 from Texas Instruments. Other potential alternatives from different manufacturers might include the MP1584 by Monolithic Power Systems or the AP1509 by Diodes Incorporated. When choosing an equivalent, ensure the specifications such as input voltage range, output current, switching frequency, and efficiency match your application requirements.

Shipping

Shipping MethodsWe

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

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