LM27402SQX

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LM27402SQX

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規格

Brand Texas Instruments
Product Type Switching Controllers
Subcategory PMIC - Power Management ICs
Mounting Style SMD/SMT
Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 125 C
Output Voltage 600 mV to 18.6 V
Output Current 30 A
Number of Outputs 1 Output
Package / Case LLP-16
Switching Frequency 200 kHz to 1.2 MHz
Duty Cycle - Max 95 %
Topology Buck

概述

Description

The LM27402SQX is a high-performance, dual-output, low-dropout (LDO) regulator designed for applications requiring efficient voltage regulation. It features a wide input voltage range, typically from 2.5V to 20V, making it suitable for various power supply systems. This device can deliver up to 2A of output current per channel, with a low dropout voltage, ensuring minimal power loss and heat generation during operation.
The LM27402SQX is optimized for low quiescent current, enhancing efficiency in battery-powered applications. It also includes built-in protection features such as thermal shutdown and current limiting, ensuring safe operation under various conditions. The device is packaged in a compact surface-mount format, allowing for space-efficient designs.
With its versatile features and robust performance, the LM27402SQX is ideal for consumer electronics, industrial automation, and automotive applications, where reliable power management is crucial.

Features

The LM27402SQX is a dual-input, high-efficiency synchronous buck regulator designed for power supply applications. Key features include:
1. Dual Output Channels: It provides two outputs, making it suitable for powering multiple components.
2. Wide Input Voltage Range: Supports input voltages from 4.5V to 17V, accommodating various power sources.
3. High Efficiency: Offers efficiency levels up to 95%, reducing thermal management requirements.
4. Adjustable Output Voltage: Output voltage can be set via external resistors, allowing flexibility for different applications.
5. Integrated MOSFETs: Incorporates low on-resistance MOSFETs to minimize conduction losses.
6. Current Mode Control: Enhances transient response and stability.
7. Protection Features: Includes overcurrent protection (OCP), thermal shutdown (TSD), and under-voltage lockout (UVLO).
8. Compact Package: Available in a small QFN package, enabling space-efficient designs.
These features make the LM27402SQX suitable for various applications, including consumer electronics, industrial equipment, and telecommunications.

Package

The LM27402SQX is packaged in a VQFN-16 (Very Thin Quad Flat No-lead) package. This type of package features a compact design with no leads extending from the body, allowing for a smaller footprint and efficient thermal performance.

Pinout

The LM27402SQX is a dual-channel synchronous buck regulator from Texas Instruments. It has a pin count of 32. Each channel can operate independently, providing efficient power conversion for various applications.
Key functions of the pins include:
1. Power Input (VIN): Supplies power to the regulator.
2. Ground (GND): Common reference point for the circuit.
3. Switching Nodes (SW): Connects to the internal MOSFETs for switching operations.
4. Output Voltage Feedback (FB): Monitors the output voltage for regulation.
5. Enable Pins (EN): Controls the power-up sequence of the regulator.
6. Compensation Pins (COMP): For external compensation network to stabilize the system.
7. Power Good (PG): Signal indicating the output voltage is within the desired range.
This device is designed for high efficiency and is suitable for applications requiring compact power solutions, such as in computing and telecommunications. For detailed pin configuration and electrical characteristics, refer to the LM27402SQX datasheet.

Manufacturer

The LM27402SQX is manufactured by Texas Instruments (TI), a leading global semiconductor company. Founded in 1930 and headquartered in Dallas, Texas, Texas Instruments specializes in designing and manufacturing a wide range of electronics and semiconductor products. Their portfolio includes analog and embedded processing devices used in various applications, such as automotive, industrial, communications, and consumer electronics. TI is known for its innovation in power management, signal processing, and microcontroller technologies, making it a key player in the electronics industry.

Application

The LM27402SQX is a high-performance operational amplifier ideal for various applications, including signal conditioning, active filtering, and data acquisition systems. It is commonly used in instrumentation, audio processing, and industrial control systems due to its low noise, high precision, and wide bandwidth. Additionally, it suits applications in medical devices and automotive electronics, where reliable performance and low distortion are critical.

Equivalent

The LM27402SQX is a dual operational amplifier. Equivalent products include the following:
1. OPA2134 - low distortion, high-speed op-amp.
2. TL072 - low-noise FET-input op-amp.
3. LM358 - dual op-amp with a wider supply range.
4. MCP602 - dual op-amp with rail-to-rail input/output.
Always check specific datasheets for precise characteristics and compatibility.

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