LT1942EUF

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LT1942EUF

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  • Mfr. Partie #LT1942EUF
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  • En stock8319

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Spécifications

Package / Case QFN-24
Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C
Series LT1942
Brand Analog Devices
Product Type Switching Voltage Regulators
Subcategory PMIC - Power Management ICs
Mounting Style SMD/SMT
Shipping Restrictions Mouser does not presently sell this product in your region.
Operating Supply Current 7 mA
Topology Boost
Output Voltage Adjustable
Output Current 400 mA
Number of Outputs 4 Output
Input Voltage - Min 2.6 V
Input Voltage - Max 16 V
Switching Frequency 1 MHz

Vue d'ensemble

Description

The LT1942EUF is a high-efficiency, step-up DC/DC converter designed by Linear Technology (now part of Analog Devices). It is engineered to convert lower voltage inputs to higher voltage outputs, making it suitable for applications requiring voltage boosting. The LT1942EUF operates with a wide input voltage range and is capable of delivering output currents of up to 1.4A.
Key features include a high switching frequency of 1.2MHz, which allows for the use of smaller external components, resulting in a compact design. It also incorporates an integrated power switch and is built to provide high-efficiency power conversion, minimizing heat generation and improving battery life in portable devices.
The device comes in a thermally enhanced 10-lead DFN package, ensuring effective heat dissipation. It includes features like over-temperature protection and soft-start capability to prevent inrush current at startup. The LT1942EUF is commonly used in applications such as battery-powered devices, portable instruments, and other electronics requiring efficient power conversion from low to higher voltages.

Features

The LT1942EUF is a step-up DC/DC converter designed by Linear Technology, now part of Analog Devices. It is known for its efficiency and performance in power management applications. Here are some key features:
1. High Efficiency: The LT1942EUF offers high-efficiency operation, which is critical for battery-powered devices.

2. Wide Input Voltage Range: It supports a wide input voltage range, making it versatile for various power sources.
3. Output Voltage: This converter can generate a fixed or adjustable output voltage, enhancing flexibility for different applications.
4. Switching Frequency: It operates at a high switching frequency, enabling the use of smaller inductors and capacitors, thereby reducing the overall size of the power supply design.
5. Compact Package: The device is available in a compact package, suitable for space-constrained applications.
6. Protection Features: It includes built-in protection features such as over-current and thermal shutdown, ensuring safe and reliable operation.
7. Applications: Commonly used in portable devices, LED drivers, and other applications requiring efficient step-up conversion.
This combination of features makes the LT1942EUF a robust choice for efficient power management in compact electronic designs.

Package

The LT1942EUF is packaged in a 16-lead QFN (Quad Flat No-Lead) with a 3mm x 3mm footprint. This package type is designed for efficient heat dissipation and compact integration in electronic circuits.

Pinout

The LT1942EUF is a 16-pin integrated circuit designed by Linear Technology, which is now part of Analog Devices. It functions as a dual switching regulator with dual internal switches and Schottky diodes, optimized for driving multiple LED strings. The device is used in applications requiring high efficiency and compact solutions for powering backlight applications.
The key functions and characteristics include:
1. Dual Output: Capable of driving two separate strings of LEDs with adjustable current.
2. Internal Switches/Diodes: Provides built-in switches and Schottky diodes for efficient operation and minimal external components.
3. Wide Input Range: Operates from a wide input voltage range, enhancing its versatility in various applications.
4. High Efficiency: Designed for high efficiency to minimize power loss and heat generation.
The device's compact package and integrated features make it suitable for space-constrained applications, such as mobile devices and portable electronics.

Manufacturer

The LT1942EUF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits. The company provides a wide range of products that serve various industries, including automotive, communication, healthcare, and industrial sectors. Analog Devices is known for its focus on high-performance analog technology, facilitating complex signal processing tasks in electronic devices.

Application

The LT1942EUF is a high-frequency, dual step-up DC/DC converter primarily used in applications requiring efficient power conversion. It is suitable for driving OLED displays, powering CCD sensor arrays, and providing power for handheld devices and portable electronics. Its compact size and high efficiency make it ideal for battery-powered applications, including smartphones, digital cameras, and other consumer electronics where space is limited, and performance is critical.

Equivalent

The LT1942EUF is a high-efficiency step-up DC/DC converter from Analog Devices (previously Linear Technology). Equivalent products could include the TPS61087 from Texas Instruments, the MAX1709 from Maxim Integrated (now part of Analog Devices), and the NCP1406 from ON Semiconductor. These alternatives offer similar functionalities like step-up DC/DC conversion, suitable input voltage ranges, and comparable output capabilities, though specific features and performance may vary. Always verify compatibility with your application requirements.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

Paiements

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