LTC3402EMS

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LTC3402EMS

+Nomenclature

Switching Voltage Regulators LTC3402 - 2A, 3MHz Micropower Synchronous Boost Converter

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Présentation

Description

The LTC3402EMS is a high-efficiency, step-up DC/DC converter from Analog Devices, originally developed by Linear Technology. It is designed to boost input voltages to a higher output voltage with minimal power loss, making it suitable for applications requiring efficient power conversion. The device operates with an input voltage range of 0.5V to 5V and can deliver an output voltage as high as 8.5V.
Key features include a high switching frequency of up to 3MHz, which allows for the use of smaller external components, enhancing the overall compactness of the design. The LTC3402EMS also offers a low quiescent current, contributing to its high efficiency, especially in low-power conditions. The device integrates a synchronous rectifier, which helps in reducing diode losses and improving overall efficiency.
Its compact MSOP (Mini Small Outline Package) ensures the LTC3402EMS is suitable for space-constrained applications, including battery-powered devices and handheld electronics. Built-in features such as soft-start, current limiting, and thermal shutdown enhance its reliability and ease of use.

Equivalent

The LTC3402EMS is a high-efficiency step-up DC/DC converter from Analog Devices (formerly Linear Technology). Equivalent products might include:
1. TPS61030 from Texas Instruments: A high-efficiency boost converter with similar specifications.
2. MIC2605/6 from Microchip Technology: A high-performance, high-efficiency boost converter.
3. MAX1703 from Maxim Integrated: Another efficient step-up converter for similar applications.
These alternatives should be verified for specific application compatibility.

Features

The LTC3402EMS is a high-efficiency, step-up DC/DC converter designed by Linear Technology (now part of Analog Devices). Key features of the LTC3402EMS include:
1. High Efficiency: Capable of achieving up to 95% efficiency, making it suitable for battery-powered applications.

2. Operating Frequency: Operates at a fixed frequency of 3MHz, allowing the use of small inductors and capacitors.
3. Output Voltage Range: Offers an adjustable output voltage range from 2.6V to 5.5V.
4. Input Voltage Range: Handles input voltages as low as 0.5V, ideal for single-cell battery applications.
5. Current Capability: Provides up to 2A output current.
6. Low Shutdown Current: Features a low shutdown current of <1µA to conserve battery life when not in active use.
7. Soft-Start Functionality: Incorporates a soft-start feature to minimize inrush current during startup.
8. Compact Package: Available in a space-saving MS10 package, suitable for compact designs.
These features make the LTC3402EMS a versatile and efficient solution for portable electronic devices requiring consistent performance and compact size.

Pinout

The LTC3402EMS is a high-efficiency, monolithic, synchronous, step-down DC/DC converter. It typically comes in a 10-lead MSOP (Mini Small Outline Package). The pin count is thus 10.
Key functions of the LTC3402 include:
1. Input Voltage Range: The converter operates with an input voltage range of 2.5V to 5.5V.
2. Output Voltage: It can generate a fixed output voltage with high efficiency.
3. Switching Frequency: Operates at a fixed frequency of 3MHz, which allows for the use of tiny inductors and capacitors.
4. Output Current: Capable of providing up to 1A of output current.
5. Efficiency: Optimized for high efficiency over a wide load range.
6. Shutdown Mode: Includes a shutdown feature to reduce supply current to a minimal level.
7. Soft-Start: Integrates a soft-start mechanism to limit inrush current.
Overall, the LTC3402EMS is designed for portable electronics and battery-powered applications, providing efficient power conversion in a compact form factor.

Manufacturer

The LTC3402EMS is manufactured by Linear Technology Corporation. Linear Technology is a company that specializes in designing, manufacturing, and marketing a broad line of high-performance analog integrated circuits. These products are used in various applications such as telecommunications, networking products, industrial instrumentation, computers, automotive electronics, and consumer electronics. Linear Technology is known for its expertise in analog technology and its products are typically used in high-end and high-performance applications.
As of 2017, Linear Technology was acquired by Analog Devices, Inc., a larger company that also designs and manufactures analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices serves a wide range of industries, including communications, computer, industrial, instrumentation, military/aerospace, automotive, and consumer electronics.

Application

The LTC3402EMS is a high-efficiency synchronous step-down DC/DC converter. It is designed for applications requiring efficient power management and precise voltage regulation. Typical application areas include portable electronics, such as smartphones and tablets, where compact size and low power consumption are crucial. It is also used in wireless devices, communication equipment, and battery-powered devices, where extending battery life and maintaining stable voltage output is essential. Additionally, the LTC3402EMS is suitable for industrial and automotive applications that demand robust power conversion solutions. Its high switching frequency allows the use of small inductors and capacitors, making it ideal for space-constrained designs.

Package

The LTC3402EMS is typically housed in a MSOP-10 (Mini Small Outline Package) type. This package is known for its compact size, making it suitable for applications requiring efficient use of board space.