LT1940EFE#TRPBF

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LT1940EFE#TRPBF

IC REG BUCK ADJ 1.4A DL 16TSSOP

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Спецификации

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 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
SynchronousRectifier No
OperatingTemperature 0°C ~ 70°C (TA)
MountingType Surface Mount
Package/Case 16-TSSOP (0.173, 4.40mm Width) Exposed Pad

Обзор

Description

The LT1940EFE#TRPBF is a high-performance, dual step-down switching regulator from Analog Devices, originally developed by Linear Technology. It is designed for efficient power conversion in a compact form factor, making it suitable for various applications requiring stable power supply.
Key features include:
- Dual synchronous buck converter channels, each capable of delivering up to 1.4A of output current.
- Wide input voltage range from 3.6V to 25V, providing flexibility for different power sources.
- High efficiency due to its synchronous rectification, which reduces power loss.
- Fixed frequency operation at 1.1MHz, which minimizes external component size and allows for compact PCB layouts.
- Integrated soft-start and current-mode control for enhanced performance and easier system integration.
- Thermally enhanced package for effective heat dissipation.
The LT1940EFE#TRPBF is often used in applications such as telecom, industrial, and automotive systems where space and power efficiency are critical. Its robust design and reliable performance make it a popular choice for engineers looking to implement efficient power management solutions.

Features

The LT1940EFE#TRPBF is a dual monolithic step-down switching regulator from Analog Devices (formerly Linear Technology). Key features include:
1. Dual Output: Supports two independent outputs, each capable of delivering up to 1.4A of current.
2. Wide Input Voltage Range: Operates from a 3.6V to 25V input voltage range, suitable for a variety of applications.
3. High Efficiency: Employs a current-mode control architecture which ensures high efficiency, even at light loads.
4. Adjustable Switching Frequency: The switching frequency is programmable from 200kHz to 2.4MHz, allowing optimization for efficiency or component size.
5. Low Quiescent Current: Features a low quiescent current, which is ideal for battery-powered applications.
6. Synchronization Capability: Can be synchronized to an external clock for noise-sensitive applications.
7. Protection Features: Includes overcurrent protection, thermal shutdown, and soft-start capability to prevent inrush current.
8. Compact Package: Comes in a thermally enhanced 16-lead TSSOP package, beneficial for space-constrained designs.
These features make the LT1940EFE#TRPBF suitable for applications such as distributed power systems, battery-powered devices, and industrial controls.

Package

The LT1940EFE#TRPBF is packaged in a thermally enhanced, 16-lead TSSOP (Thin Shrink Small Outline Package) with exposed pad for improved heat dissipation. The "TRPBF" suffix indicates it is tape and reel packaging (TR) and is lead-free with RoHS compliance (PBF).

Pinout

The LT1940EFE#TRPBF is a dual step-down switching regulator from Analog Devices, formerly Linear Technology. It is designed to convert a higher input voltage to a lower output voltage efficiently. The device is housed in a 16-lead TSSOP (Thin Shrink Small Outline Package) with Exposed Pad, which helps in improving thermal performance.
The key functions of the LT1940EFE#TRPBF include:
- Dual output step-down conversion
- High efficiency over a wide load range
- Wide input voltage range, typically from 3.6V to 25V
- Adjustable output voltage down to 1.25V
The package's exposed pad must be soldered to the PCB ground to ensure proper thermal performance and electrical grounding.

Manufacturer

The LT1940EFE#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company provides products and solutions used in a wide range of electronic equipment, serving various industries including communications, computing, industrial, automotive, and consumer electronics.

Application

The LT1940EFE#TRPBF is a dual step-down switching regulator ideal for applications requiring efficient power conversion from higher voltage sources. It is commonly used in distributed power systems, telecom power supplies, automotive power management, industrial controls, and general-purpose DC-DC converter applications, offering high efficiency and reliable performance in compact form factors.

Equivalent

The LT1940EFE#TRPBF is a dual-output step-down (buck) switching regulator. Equivalent products may include the Texas Instruments LM26420, Maxim Integrated MAX15118, and Analog Devices ADP2119. These alternatives offer similar functions and specifications, but it's essential to compare specific parameters like input voltage range, output current, and switching frequency to ensure compatibility with your application.

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