Overview of LT1932ES6 - Linear Technology

The LT1932ES6 from Linear Technology is a highly efficient, fixed frequency, step-up DC/DC converter designed to operate as a constant current LED driver. Encased in a compact ThinSOT package, this component is a perfect solution for portable applications where space is at a premium.

Key Features

• Wide Input Voltage Range: The LT1932ES6 can operate from an input voltage ranging from 2.6V to 16V, making it versatile for various battery configurations and applications.
• Integrated 36V, 1.4A Switch: With an onboard 36V/1.4A power switch, the device can easily drive multiple LEDs in series, ensuring consistent brightness and performance.
• Constant Current and Constant Voltage Modes: It can be configured to provide a constant current for driving LEDs or a constant voltage for other applications, thereby increasing its flexibility.
• High Switching Frequency: A switching frequency of 1.2MHz allows for small external components, reducing the overall footprint and minimizing noise.
• Inherent Open LED Protection: The LT1932ES6 includes protection against open LED conditions, safeguarding the circuit during operation.
• High Efficiency: Its high efficiency of up to 84% ensures minimal power loss and heat generation, extending battery life in portable devices.

Applications

The LT1932ES6 is suitable for a wide range of applications, including:

• Portable Lighting
• LED Backlights
• Low Voltage Bias Supplies
• Optical Indicators
• Small LCD Displays

Design Advantages

The LT1932ES6 is designed with the end-user in mind, offering a simple, efficient, and reliable solution for driving LEDs and powering low-voltage electronics. Its small size combined with high switching frequency allows for minimal external component sizes, providing a compact power solution. Additionally, its robust protection features ensure long-term reliability in various operating conditions, making it an excellent choice for designers looking for a high-quality, versatile step-up converter.