規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Up/Step-Down |
| OutputConfiguration | Negative |
| Topology | Cuk |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 2.45V |
| Voltage-Input(Max) | 16V |
| Voltage-Output(Min/Fixed) | -1.255V |
| Voltage-Output(Max) | -34V |
| Current-Output | 1A (Switch) |
| Frequency-Switching | 1.2MHz |
| SynchronousRectifier | No |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | SOT-23-5 Thin, TSOT-23-5 |
概述
Description
The LT1931ES5#TRPBF is a high-efficiency, inverting DC/DC converter manufactured by Analog Devices under the Linear Technology brand. This component is designed to convert a positive input voltage into a negative output voltage, making it useful in applications requiring negative voltage rail generation. It operates from a wide input voltage range and can deliver output currents up to 300mA, depending on the configuration.
The LT1931ES5#TRPBF features a switching frequency of 1.2MHz, allowing the use of small external components and enabling compact designs. Its high efficiency is achieved through a low-loss internal switch and optimized circuitry, minimizing heat generation and power loss. This device is housed in a small, 5-lead SOT-23 package, making it suitable for space-constrained applications.
Key applications include powering amplifiers, sensors, and other analog circuits that require negative voltage. The LT1931ES5#TRPBF offers reliability and performance in various environments, serving industries such as telecommunications, automotive, and portable electronics.
The LT1931ES5#TRPBF features a switching frequency of 1.2MHz, allowing the use of small external components and enabling compact designs. Its high efficiency is achieved through a low-loss internal switch and optimized circuitry, minimizing heat generation and power loss. This device is housed in a small, 5-lead SOT-23 package, making it suitable for space-constrained applications.
Key applications include powering amplifiers, sensors, and other analog circuits that require negative voltage. The LT1931ES5#TRPBF offers reliability and performance in various environments, serving industries such as telecommunications, automotive, and portable electronics.
Equivalent
The LT1931ES5#TRPBF is a DC-DC inverting converter by Analog Devices. Equivalent products include:
1. MC33063A by ON Semiconductor - versatile DC-DC converter.
2. LM2662 by Texas Instruments - charge pump inverter.
3. TPS60402 by Texas Instruments - switched capacitor voltage inverter.
4. MAX1724 by Maxim Integrated - step-up DC-DC converter.
5. NCP3063 by ON Semiconductor - general-purpose DC-DC converter.
Ensure compatibility with your specific application requirements when selecting an equivalent.
1. MC33063A by ON Semiconductor - versatile DC-DC converter.
2. LM2662 by Texas Instruments - charge pump inverter.
3. TPS60402 by Texas Instruments - switched capacitor voltage inverter.
4. MAX1724 by Maxim Integrated - step-up DC-DC converter.
5. NCP3063 by ON Semiconductor - general-purpose DC-DC converter.
Ensure compatibility with your specific application requirements when selecting an equivalent.
Features
The LT1931ES5#TRPBF is a high-frequency, step-up DC/DC converter designed by Analog Devices, formerly Linear Technology. Key features include:
1. High Efficiency: Optimized for efficiency, capable of delivering high power output with minimal power loss.
2. Wide Input Voltage Range: Supports a broad range of input voltages, typically from 1.2V to 15V, allowing flexibility in various applications.
3. Compact Package: Offered in a small SOT-23 package, making it ideal for space-constrained designs.
4. High Switching Frequency: Operates at a high frequency, usually around 1.2MHz, minimizing external component size.
5. Low Quiescent Current: Features low standby current, enhancing battery life in portable applications.
6. Adjustable Output Voltage: Allows for adjustable output voltage levels, making it adaptable to different power requirements.
7. Built-In Protection Features: Includes protections against over-current, thermal overload, and other potential fault conditions to ensure reliable operation.
Ideal for applications requiring efficient step-up power conversion in a compact form factor, such as portable electronics and battery-powered devices.
1. High Efficiency: Optimized for efficiency, capable of delivering high power output with minimal power loss.
2. Wide Input Voltage Range: Supports a broad range of input voltages, typically from 1.2V to 15V, allowing flexibility in various applications.
3. Compact Package: Offered in a small SOT-23 package, making it ideal for space-constrained designs.
4. High Switching Frequency: Operates at a high frequency, usually around 1.2MHz, minimizing external component size.
5. Low Quiescent Current: Features low standby current, enhancing battery life in portable applications.
6. Adjustable Output Voltage: Allows for adjustable output voltage levels, making it adaptable to different power requirements.
7. Built-In Protection Features: Includes protections against over-current, thermal overload, and other potential fault conditions to ensure reliable operation.
Ideal for applications requiring efficient step-up power conversion in a compact form factor, such as portable electronics and battery-powered devices.
Pinout
The LT1931ES5#TRPBF is a DC/DC converter from Analog Devices, formerly by Linear Technology. It is a step-up (boost) converter with a fixed switching frequency. The device is housed in a 5-lead SOT-23 package, meaning it has 5 pins.
Here is a brief overview of its pin functions:
1. SW (Switch Pin): This is the switch node connected to the inductor. It is where the input voltage is switched to create the step-up voltage.
2. GND (Ground Pin): This pin is connected to the ground of the circuit.
3. FB (Feedback Pin): This pin is used to set the output voltage. It senses the output voltage for regulation.
4. SHDN (Shutdown Pin): This pin is used to enable or disable the device. Pulling this pin low places the device in a low-power shutdown mode.
5. VCC (Input Supply Pin): This pin is connected to the input supply voltage.
These pin functions facilitate the device's role as a boost converter for stepping up a lower input voltage to a higher output voltage.
Here is a brief overview of its pin functions:
1. SW (Switch Pin): This is the switch node connected to the inductor. It is where the input voltage is switched to create the step-up voltage.
2. GND (Ground Pin): This pin is connected to the ground of the circuit.
3. FB (Feedback Pin): This pin is used to set the output voltage. It senses the output voltage for regulation.
4. SHDN (Shutdown Pin): This pin is used to enable or disable the device. Pulling this pin low places the device in a low-power shutdown mode.
5. VCC (Input Supply Pin): This pin is connected to the input supply voltage.
These pin functions facilitate the device's role as a boost converter for stepping up a lower input voltage to a higher output voltage.
Manufacturer
The LT1931ES5#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that designs and manufactures semiconductor products and solutions. It is well-known for its high-performance analog, mixed-signal, and digital signal processing integrated circuits (ICs) used in a wide range of applications. These applications span industries such as telecommunications, automotive, industrial automation, healthcare, and consumer electronics. The company is recognized for providing advanced technologies that enable efficient signal processing, power management, and sensing, contributing significantly to modern electronic systems.
Application
The LT1931ES5#TRPBF is a versatile DC-DC converter, commonly used in the following application areas:
1. LCD Bias Supplies: It generates the necessary voltages for powering LCD panels.
2. Powering LED Drivers: It efficiently drives LEDs in various lighting applications.
3. Battery-Powered Devices: It is ideal for portable electronics requiring efficient power management.
4. Low-Voltage Systems: It converts low input voltages to higher output voltages in compact systems.
5. Isolated Power Supplies: It is used in applications needing electrical isolation between input and output.
Its small size and efficiency make it suitable for compact, high-performance electronic devices.
1. LCD Bias Supplies: It generates the necessary voltages for powering LCD panels.
2. Powering LED Drivers: It efficiently drives LEDs in various lighting applications.
3. Battery-Powered Devices: It is ideal for portable electronics requiring efficient power management.
4. Low-Voltage Systems: It converts low input voltages to higher output voltages in compact systems.
5. Isolated Power Supplies: It is used in applications needing electrical isolation between input and output.
Its small size and efficiency make it suitable for compact, high-performance electronic devices.
Package
The LT1931ES5#TRPBF is a DC/DC converter packaged in a SOT-23-5. This small footprint makes it suitable for compact electronic applications, providing efficient power conversion in space-constrained designs.
