사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 2 |
| Voltage - Input (Min) | 3.6V |
| Voltage - Input (Max) | 25V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 22V |
| Current - Output | 1.4A |
| Frequency - Switching | 1.1MHz |
| Synchronous Rectifier | No |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount |
개요
Description
The LT1940EFE#TRPBF is a high-efficiency, dual step-down (buck) switching regulator designed by Analog Devices (formerly Linear Technology). It is capable of delivering up to 1.4A of output current per channel from a wide input voltage range of 3.6V to 25V, making it suitable for a variety of applications, including power management in portable devices, automotive systems, and industrial equipment.
This device features a fixed switching frequency of 1.1MHz, which helps minimize external component size and allows the use of small inductors and capacitors. The LT1940EFE#TRPBF also offers a high level of integration, incorporating power switches and control circuitry within a thermally enhanced 16-lead TSSOP package. It provides additional functionalities like soft-start, short-circuit protection, and thermal shutdown, ensuring robust and reliable operation.
With its low output ripple and excellent line and load regulation, the LT1940EFE#TRPBF is an efficient and versatile choice for multiple applications requiring dual output step-down conversion.
This device features a fixed switching frequency of 1.1MHz, which helps minimize external component size and allows the use of small inductors and capacitors. The LT1940EFE#TRPBF also offers a high level of integration, incorporating power switches and control circuitry within a thermally enhanced 16-lead TSSOP package. It provides additional functionalities like soft-start, short-circuit protection, and thermal shutdown, ensuring robust and reliable operation.
With its low output ripple and excellent line and load regulation, the LT1940EFE#TRPBF is an efficient and versatile choice for multiple applications requiring dual output step-down conversion.
Equivalent
The LT1940EFE#TRPBF is a dual step-down switching regulator. Equivalent products include:
1. Texas Instruments LM26400: Dual step-down DC-DC converter with similar functionalities.
2. Maxim Integrated MAX15062: Step-down (buck) converter, offering similar output capabilities.
3. ON Semiconductor NCP3170: Dual output step-down switching regulator with comparable features.
4. Microchip Technology MIC4570: Dual buck regulator with equivalent specifications.
Always check specific parameters like voltage, current, and efficiency to ensure compatibility.
1. Texas Instruments LM26400: Dual step-down DC-DC converter with similar functionalities.
2. Maxim Integrated MAX15062: Step-down (buck) converter, offering similar output capabilities.
3. ON Semiconductor NCP3170: Dual output step-down switching regulator with comparable features.
4. Microchip Technology MIC4570: Dual buck regulator with equivalent specifications.
Always check specific parameters like voltage, current, and efficiency to ensure compatibility.
Features
The LT1940EFE#TRPBF is a dual step-down switching regulator from Analog Devices. It is designed to efficiently convert higher input voltages to lower output voltages. Key features include:
1. Dual Outputs: Capable of driving two separate loads with independent voltage levels.
2. High Efficiency: Offers efficiency up to 90% which is ideal for power-sensitive applications.
3. Wide Input Voltage Range: Operates from 3.6V to 25V, making it versatile for various applications.
4. Adjustable Output Voltage: Allows setting the output voltage between 1.25V and 24V.
5. 2.4A Output Current: Each channel can deliver up to 2.4A, suitable for moderate power applications.
6. Synchronization: Features the ability to synchronize switching frequencies for reduced interference.
7. Thermal Protection: Includes built-in thermal shutdown to protect against overheating.
8. Compact Package: Available in a 16-lead TSSOP package, suitable for space-constrained designs.
These features make the LT1940EFE#TRPBF suitable for applications like distributed power systems, battery-powered devices, and automotive electronics.
1. Dual Outputs: Capable of driving two separate loads with independent voltage levels.
2. High Efficiency: Offers efficiency up to 90% which is ideal for power-sensitive applications.
3. Wide Input Voltage Range: Operates from 3.6V to 25V, making it versatile for various applications.
4. Adjustable Output Voltage: Allows setting the output voltage between 1.25V and 24V.
5. 2.4A Output Current: Each channel can deliver up to 2.4A, suitable for moderate power applications.
6. Synchronization: Features the ability to synchronize switching frequencies for reduced interference.
7. Thermal Protection: Includes built-in thermal shutdown to protect against overheating.
8. Compact Package: Available in a 16-lead TSSOP package, suitable for space-constrained designs.
These features make the LT1940EFE#TRPBF suitable for applications like distributed power systems, battery-powered devices, and automotive electronics.
Pinout
The LT1940EFE#TRPBF is a dual step-down switching regulator manufactured by Analog Devices (formerly Linear Technology). It typically comes in a 16-lead TSSOP (Thermally Enhanced Thin Shrink Small Outline Package) package. The primary function of the LT1940 is to convert a higher input voltage to a lower output voltage efficiently and can supply up to 1.4A per output. It features a 36V input capability, high efficiency, and a wide input voltage range. The package includes pins for input voltage, output voltage, feedback, shutdown, and switching among others, allowing for flexible configurations in power management applications.
Manufacturer
The LT1940EFE#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits. These components are widely used in electronic equipment across various industries, including communications, healthcare, automotive, and industrial applications. The company is known for its focus on innovation and high-performance solutions in signal processing and power management.
Application
The LT1940EFE#TRPBF is a dual step-down switching regulator designed for efficient power management in various applications. Its typical application areas include:
1. Industrial Power Supplies: Provides stable voltages in industrial equipment.
2. Telecommunications: Powers communication devices with regulated outputs.
3. Networking Equipment: Supplies efficient power for routers and switches.
4. Automotive Systems: Used in automotive electronics for reliable power delivery.
5. Consumer Electronics: Powers devices like set-top boxes and portable gadgets.
6. Embedded Systems: Ideal for embedded applications requiring multiple regulated outputs.
Its dual output and high efficiency make it suitable for systems requiring compact and reliable power solutions.
1. Industrial Power Supplies: Provides stable voltages in industrial equipment.
2. Telecommunications: Powers communication devices with regulated outputs.
3. Networking Equipment: Supplies efficient power for routers and switches.
4. Automotive Systems: Used in automotive electronics for reliable power delivery.
5. Consumer Electronics: Powers devices like set-top boxes and portable gadgets.
6. Embedded Systems: Ideal for embedded applications requiring multiple regulated outputs.
Its dual output and high efficiency make it suitable for systems requiring compact and reliable power solutions.
Package
The LT1940EFE#TRPBF is a part of Analog Devices' product line and comes in a TSSOP (Thin Shrink Small Outline Package) with 20 pins. The package is designed for surface-mount applications.
