LTC3400BES6

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LTC3400BES6

+Nomenclature

Switching Voltage Regulators LTC3400B - 600mA, 1.2MHz Micropower Synchronous Boost Converters in ThinSOT

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Présentation

Description

The LTC3400BES6 is a high-efficiency, step-up DC/DC converter designed for portable electronic devices. Manufactured by Linear Technology, now a part of Analog Devices, this converter features a fixed output voltage and operates from an input range of 0.85V to 6V, making it suitable for single-cell battery applications. The device provides a low noise, stable output suitable for sensitive electronics.
Key features include a 400mA output current capability, high efficiency up to 94%, and a low quiescent current of only 20µA, which helps in extending battery life. The LTC3400BES6 employs a Burst Mode operation to maintain efficiency at low loads and includes user-programmable current limits and over-temperature protection for enhanced reliability. It comes in a compact 6-lead SOT-23 package, making it ideal for space-constrained applications.
Applications for this converter include powering microcontrollers, sensors, and other digital circuits in portable devices, ensuring efficient power management in compact electronic designs.

Equivalent

The LTC3400BES6 is a high-efficiency step-up DC/DC converter. Equivalent products include:
1. TPS61070 - from Texas Instruments, offering similar voltage regulation and efficiency.
2. MAX1724 - from Maxim Integrated, known for its compact size and efficiency.
3. MIC2250 - from Microchip Technology, offering similar power handling and features.
4. NCP1402 - from ON Semiconductor, compact and efficient for similar applications.
These alternatives offer comparable functionality and are suitable for similar voltage boosting applications.

Features

The LTC3400BES6 is a high-efficiency step-up DC/DC converter specifically designed for battery-powered applications. It operates from an input voltage range of 0.85V to 4.4V, making it ideal for devices powered by single-cell or multi-cell alkaline, NiMH, or NiCd batteries. Key features include:
1. Efficiency: Achieves up to 94% efficiency, which is critical for extending battery life.
2. Output Voltage: Can generate a fixed output voltage of 3.3V or 5V, with the ability to deliver up to 300mA of current.
3. Low Quiescent Current: Consumes a mere 20µA during operation and less than 1µA in shutdown mode, further conserving battery life.
4. Low Start-Up Voltage: Starts up with input voltages as low as 0.85V, ensuring functionality even as battery voltage drops.
5. Compact Size: Available in a small SOT-23-6 package, suitable for space-constrained applications.
6. Protection Features: Includes over-temperature protection and an output disconnect feature to prevent reverse current.
These features make the LTC3400BES6 suitable for portable electronic devices requiring efficient power conversion and management.

Pinout

The LTC3400BES6 is a high-efficiency, step-up DC/DC converter. It comes in a 6-pin SOT-23 package. Here's a brief overview of its pin functions:
1. SW (Pin 1): This is the switch pin where the inductor is connected. The pin switches between VIN and ground.
2. GND (Pin 2): Ground reference for the device.
3. FB (Pin 3): Feedback pin used to set the output voltage via an external resistor divider network.
4. SHDN (Pin 4): Shutdown pin. A low signal will put the device in shutdown mode, reducing quiescent current.
5. VIN (Pin 5): Input voltage supply pin.
6. VOUT (Pin 6): Output voltage pin, where the boosted output voltage is available.
The device is primarily used in applications that require efficient voltage boosting, such as portable electronics. It features a shutdown mode for power saving and operates efficiently over a wide range of input and output voltages.

Manufacturer

The LTC3400BES6 is manufactured by Linear Technology, which is now a part of Analog Devices, Inc. Linear Technology was known for designing, manufacturing, and marketing a broad line of analog integrated circuits. These components were used in a variety of applications, including telecommunications, networking products, industrial instrumentation, computers, automotive electronics, and consumer electronics. In 2017, Linear Technology was acquired by Analog Devices, a company that continues to specialize in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices serves various sectors such as industrial, automotive, consumer electronics, communications, and healthcare, offering solutions that bridge the physical and digital worlds.

Application

The LTC3400BES6 is a high-efficiency step-up DC/DC converter known for its compact size and low quiescent current, making it ideal for portable and battery-powered devices. Application areas include:
1. Mobile Phones: Provides efficient power conversion to extend battery life.
2. PDAs and Handheld Devices: Offers compact power management solutions.
3. Digital Cameras: Supplies stable power for better performance.
4. GPS Receivers: Ensures reliable power supply under variable conditions.
5. Battery-Powered IoT Devices: Supports low power operation for extended device operation.
6. Consumer Electronics: Enhances energy efficiency in small gadgets.
7. Wireless Communication Devices: Provides consistent power in varying loads.
These applications benefit from the LTC3400BES6's ability to deliver efficient power conversion in constrained spaces.

Package

The LTC3400BES6 is packaged in a 6-lead, SOT-23 (Small Outline Transistor) package. This compact package is commonly used for surface-mount devices in electronic circuits.

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