LT1054IS8

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LT1054IS8

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Switching Voltage Regulators Switched-Capacitor Voltage Converter with Regulator

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Description

The LT1054IS8 is a versatile switched-capacitor voltage converter IC produced by Analog Devices, previously by Linear Technology. It is designed to efficiently convert input voltages to regulated or unregulated output voltages, making it ideal for various power supply applications. Key features include its ability to function as both a positive-to-negative inverter or a voltage doubler without requiring inductors, thus simplifying circuit design. The LT1054IS8 offers a wide input voltage range, typically from 3.5V to 15V, and can provide output currents of up to 100mA with efficiencies up to 90%.
The device includes an internal oscillator for charge-pump operation and can support an output voltage of up to 15V, depending on the configuration. Additionally, it features built-in short-circuit protection and thermal shutdown to enhance its reliability. The chip is available in an 8-pin SOIC package, making it compact and suitable for space-constrained applications. The LT1054IS8 is commonly used in battery-powered devices, portable equipment, and applications requiring efficient voltage conversion without the complexity of inductors.

Equivalent

The LT1054IS8 is a switched-capacitor voltage converter IC. Equivalent products include the LM2664, TC7660, ICL7660, and MAX660. These alternatives offer similar functionalities, such as voltage inversion and doubling, suitable for low-power applications. When considering an equivalent, ensure the specifications match your application needs, such as voltage range, current capacity, and package type.

Features

The LT1054IS8 is a versatile switched-capacitor voltage converter commonly used for voltage regulation and inversion tasks. Key features include:
1. Input Voltage Range: Operates within a range of 3.5V to 15V, making it suitable for a variety of applications.

2. Output Voltage: Can produce positive or negative voltages; capable of doubling or inverting the input voltage.
3. Efficiency: Known for high efficiency, often exceeding 90%, due to its low quiescent current and efficient power conversion techniques.
4. Current Output: Typically supports output currents up to 100mA, depending on the configuration and input voltage.
5. External Components: Requires minimal external components, simplifying circuit design.
6. Frequency: Operates at a switching frequency of approximately 25kHz.
7. Protection: Includes features like current limiting and thermal shutdown for enhanced reliability.
8. Package: Available in an 8-pin SOIC package, which is compact and suitable for space-constrained designs.
These features make the LT1054IS8 ideal for portable power supply applications, battery-powered devices, and other electronic projects requiring efficient voltage conversion.

Pinout

The LT1054IS8 is an integrated circuit used primarily for voltage conversion, such as voltage doubling or inverting applications. It is a part of the LT1054 family, which are versatile switched-capacitor voltage converters. The LT1054IS8 specifically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here’s a brief overview of its pin functions:
1. Pin 1 (CAP+): Positive terminal for the external capacitor used in voltage conversion.
2. Pin 2 (GND): Ground connection.
3. Pin 3 (CAP-): Negative terminal for the external capacitor used in voltage conversion.
4. Pin 4 (VOUT): Output voltage terminal.
5. Pin 5 (VCC): Positive supply voltage terminal.
6. Pin 6 (Frequency Control): Allows for frequency adjustment with an external capacitor.
7. Pin 7 (Shutdown): Disables the device when connected to ground.
8. Pin 8 (D1): Used for output diode connection in some configurations.
The LT1054 can efficiently convert voltages with minimal external components, making it suitable for applications like battery-powered devices where space and efficiency are critical.

Manufacturer

The LT1054IS8 is manufactured by Analog Devices, Inc. This company is a well-known multinational corporation that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits. Their products are often used in various applications such as communications, healthcare, automotive electronics, and industrial automation. Analog Devices is recognized for its innovation and high-performance solutions, catering to a wide range of industries with a focus on quality and reliability.

Application

The LT1054IS8 is a versatile switched-capacitor voltage converter commonly used in applications requiring voltage inversion, regulation, or multiplication. Key application areas include:
1. Voltage Inversion: Used to generate negative voltages from positive inputs, useful in powering analog circuits.
2. Voltage Regulation: Provides regulated output voltages, important for stabilizing power supply in sensitive electronic devices.
3. Voltage Doubling: Doubles the input voltage, applicable in powering devices requiring higher voltage levels.
4. Battery-Powered Devices: Enhances power efficiency, crucial for portable and battery-operated equipment.
5. Microcontroller Systems: Provides necessary power conversions for embedded systems and microcontrollers.
Overall, it's suited for efficient power management in various electronic circuits.

Package

The LT1054IS8 is available in an SOIC-8 package, which is a small-outline integrated circuit with 8 pins. This packaging is commonly used for surface mounting in electronic devices.

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