LT1930ES5

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LT1930ES5

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Switching Voltage Regulators LT1930 - 1A, 1.2MHz/2.2MHz, Step-Up DC/DC Converters in ThinSOT

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  • メーカー品番 #LT1930ES5

  • データシート LT1930ES5 DataSheet

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仕様

属性

概要

Description

The LT1930ES5 is a step-up (boost) DC-DC converter manufactured by Analog Devices, formerly Linear Technology. It is designed to efficiently increase low input voltages to higher output voltages, making it suitable for applications like driving LEDs, LCD biasing, or powering circuits from a single-cell battery. The device comes in a compact SOT-23 package and operates with a switching frequency of 1.2 MHz, which allows the use of small external components such as inductors and capacitors, minimizing overall circuit footprint.
Key features of the LT1930ES5 include its ability to deliver up to 2W of output power, a wide input voltage range from 1.2V to 10V, and a high efficiency of up to 88%. It incorporates a current-mode PWM architecture for stable and efficient operation. The device also includes features like soft-start, internal frequency compensation, and over-temperature protection to enhance reliability and performance. Its combination of compact size and efficient power conversion makes it ideal for portable and space-constrained applications.

Equivalent

The LT1930ES5, a boost DC-DC converter by Linear Technology (now part of Analog Devices), can be substituted with several equivalent products. Some alternatives include:
1. MIC2288 from Microchip Technology
2. TPS61097 series from Texas Instruments
3. AP3031 from Diodes Incorporated
4. NCP1402 from ON Semiconductor
These alternatives have similar functionalities and specifications, but ensure to check detailed datasheets for compatibility with your specific application requirements.

Features

The LT1930ES5 is a step-up (boost) DC/DC converter manufactured by Analog Devices. It is designed for compact applications requiring high efficiency and minimal external components. Key features include:
1. Input Voltage Range: Operates from a low input voltage range of 1.2V to 10V, making it suitable for battery-powered applications.
2. Output Voltage: Capable of generating output voltages as high as 34V.
3. Current Capability: Delivers up to 2A of switch current.
4. Efficiency: Offers high conversion efficiency, typically up to 90%, reducing power loss and heat generation.
5. Low Quiescent Current: Features a low quiescent current of 31µA, which helps extend battery life in portable applications.
6. Switching Frequency: Operates at a fixed frequency of 1.2MHz, allowing the use of small-sized external components.
7. Package: Comes in a small 5-lead SOT-23 package, ideal for space-constrained designs.
8. Protection Features: Includes features like current limiting and thermal shutdown for enhanced reliability.
These features make the LT1930ES5 an excellent choice for portable electronics, LED drivers, and other applications requiring a compact and efficient boost converter.

Pinout

The LT1930ES5 is a step-up DC/DC converter manufactured by Analog Devices, formerly by Linear Technology. It comes in a 5-pin SOT-23 package. Here is a brief overview of its pin functions:
1. SW (Pin 1): The switch pin connects to the inductor and diode. This pin is the collector of the internal power switch and should be connected to the external inductor and catch diode.
2. GND (Pin 2): Ground pin. This is the reference point for the internal circuitry and should be connected to the system ground.
3. FB (Pin 3): Feedback pin. It is used to set the output voltage via a resistor divider network connected to the output.
4. SHDN (Pin 4): Shutdown pin. A low voltage on this pin puts the device into a low-power shutdown mode. It can be tied to VIN for normal operation.
5. VIN (Pin 5): Input voltage pin. This pin supplies the input voltage to the device and should be bypassed with a capacitor to ground.
The LT1930ES5 is designed for use in applications requiring efficient step-up conversion with a small form factor.

Manufacturer

The LT1930ES5 is manufactured by Analog Devices, Inc. This company specializes in the design and production of analog, mixed-signal, and digital signal processing integrated circuits used in electronic equipment. Analog Devices serves a wide range of markets, including industrial, automotive, communications, and consumer electronics, providing components that play critical roles in applications such as data conversion, signal conditioning, power management, and radio frequency (RF) signal processing.

Application

The LT1930ES5 is a high-frequency step-up DC/DC converter used in a variety of applications. Its primary application areas include powering white LEDs in portable devices, such as mobile phones and digital cameras, due to its efficiency and compact size. It is also used in OLED displays, GPS receivers, and other handheld electronics. The LT1930ES5 is suitable for battery-powered devices where space and efficiency are critical. Additionally, it can be utilized in generating higher voltages from lower voltage sources, making it versatile in applications like biasing circuits for LCDs or powering sensors in industrial and medical equipment.

Package

The LT1930ES5 is typically available in a 5-lead SOT-23 package type.

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