LM2703MFX-ADJ

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LM2703MFX-ADJ

IC LED DRVR RGLTR 350MA SOT23-5

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  • Mfr。パート #LM2703MFX-ADJ
  • パッケージ SOT-23-5
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  • 在庫中3270

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仕様

Package Tape & Reel (TR)
ProductStatus Obsolete
Type DC DC Regulator
Topology Step-Up (Boost)
InternalSwitch(s) Yes
NumberofOutputs 1
Voltage-Supply(Min) 2.2V
Voltage-Supply(Max) 7V
Voltage-Output 21V
Current-Output/Channel 350mA (Switch)
Applications Backlight
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case SC-74A, SOT-753

概要

Description

The LM2703MFX-ADJ is a DC-DC boost converter integrated circuit designed by Texas Instruments. It is used to step-up (boost) a lower voltage to a higher voltage in electronic circuits, commonly employed in battery-powered devices. The "ADJ" in its name indicates it features an adjustable output voltage, allowing flexibility in applications.
Key features of the LM2703MFX-ADJ include high efficiency, low quiescent current, and the capability to deliver output currents up to 2A. It operates with a wide input voltage range, typically from 2.2V to 7V, making it suitable for single-cell lithium-ion battery applications. The device is housed in a small SOT-23 package, which is beneficial for space-constrained designs.
The LM2703MFX-ADJ's switching frequency is adjustable, which aids in optimizing the efficiency and size of external components like inductors and capacitors. It also includes features like over-current protection and thermal shutdown, enhancing its reliability and safety in various operating conditions. This IC is widely used in portable electronics, LED drivers, and other applications requiring efficient voltage boosting.

Features

The LM2703MFX-ADJ is a step-up DC-DC converter designed by Texas Instruments. It is known for its high efficiency and compact design, making it suitable for portable and battery-powered applications. Key features include:
1. Adjustable Output Voltage: The device allows for an adjustable output voltage, providing flexibility for various applications.

2. High Efficiency: It offers high efficiency, often over 80%, which is beneficial for conserving battery life in portable devices.
3. Wide Input Voltage Range: The LM2703MFX-ADJ supports a broad input voltage range, typically from 2.2V to 7V, allowing it to be used with different power sources.
4. Current Limiting: The device includes current limiting features to protect against overcurrent conditions, enhancing reliability.
5. Integrated Power Switch: It has an integrated N-channel MOSFET, reducing the need for external components and simplifying the design.
6. Low Quiescent Current: The converter consumes minimal current in standby mode, further contributing to energy efficiency.
7. Small Package: It is available in a small SOT-23 package, which is advantageous for space-constrained applications.
These features make the LM2703MFX-ADJ suitable for applications requiring efficient power conversion in compact designs.

Package

The LM2703MFX-ADJ is a DC-DC boost converter commonly packaged in a SOT-23-6 form factor. This package is a small outline transistor package with six pins, suitable for compact applications requiring efficient voltage conversion and regulation.

Pinout

The LM2703MFX-ADJ is a step-up DC-DC converter integrated circuit. It typically comes in a SOT-23-5 package, which means it has 5 pins. Here is a brief description of its pin functions:
1. SW (Pin 1): This is the switch pin where the inductor is connected. It is the main switching node for the DC-DC conversion.

2. GND (Pin 2): This is the ground pin and is the return path for the input and output of the converter.
3. FB (Pin 3): The feedback pin is used to adjust the output voltage. It is connected to the midpoint of a resistor divider network from the output to ground.
4. SHDN (Pin 4): The shutdown pin is used to enable or disable the device. Pulling this pin low will put the device in shutdown mode, reducing current consumption.
5. VIN (Pin 5): This is the input voltage pin where the supply voltage is provided to the IC.
This IC is used for applications requiring a boost converter, with adjustable output voltage controlled via an external resistor network.

Manufacturer

The LM2703MFX-ADJ is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top semiconductor companies in the world, and its products are used in a broad range of applications, including in industrial, automotive, personal electronics, and communications equipment. TI is known for its innovation and leadership in analog and embedded processing technologies.

Application

The LM2703MFX-ADJ is a step-up DC-DC converter from Texas Instruments. Its application areas include portable devices, battery-powered equipment, and other systems requiring efficient voltage boosting. It's particularly suitable for devices needing adjustable output voltages, such as handheld electronics, digital cameras, and PDAs. Additionally, it can be used in white LED backlighting and wireless communication devices, thanks to its compact size and high efficiency.

Equivalent

The LM2703MFX-ADJ is a DC-DC boost converter. Equivalent products might include the MC34063, TPS61070, MAX1771, and LT1613. These alternatives vary in specifications, so it's important to compare their features, such as input voltage range, output current capability, and switching frequency, to ensure they meet your specific requirements.

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出荷料参照(DHL/FedEx):

DHL の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル(0.5kg)の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル(0.1kg)で、推定配送時間は5〜20営業日です。

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