TPS54231D

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TPS54231D

IC REG BUCK ADJUSTABLE 2A 8SOIC

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規格

Package Bulk,Tube
Series Eco-Mode™
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 3.5V
Voltage-Input(Max) 28V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 25V
Current-Output 2A
Frequency-Switching 570kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概述

Description

The TPS54231D is a step-down (buck) DC-DC converter from Texas Instruments designed for high-efficiency power management applications. It features a wide input voltage range from 3.5V to 28V and delivers up to 2A of continuous output current. The device operates at a fixed 570 kHz switching frequency, which balances efficiency and component size, making it suitable for compact designs.
Key features include internal loop compensation, an integrated high-side MOSFET, and adjustable output voltage, which can be set using external resistors. It also offers protection features such as over-current protection, thermal shutdown, and under-voltage lockout to enhance reliability and safety. The TPS54231D supports a high-efficiency pulse-skip mode under light loads and has a low quiescent current, optimizing it for battery-powered applications.
Its compact 8-pin SOIC package makes it ideal for space-constrained designs, commonly used in consumer electronics, automotive, and industrial applications. The TPS54231D is known for its ease of use, requiring minimal external components, and provides a cost-effective solution for efficient power conversion.

Features

The TPS54231D is a DC-DC step-down converter. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 3.5 V to 28 V, making it versatile for various applications.
2. Output Current: The device can deliver up to 2 A of output current.
3. Efficiency: High efficiency is achieved over a wide load range.
4. Switching Frequency: The converter operates at a fixed 570 kHz switching frequency, balancing size and efficiency.
5. Feedback Voltage: It offers a 0.8 V feedback voltage reference for easy output voltage setting.
6. Soft Start: Integrated soft-start controls the inrush current during startup.
7. Thermal Shutdown: Protection features include thermal shutdown and cycle-by-cycle overcurrent limiting.
8. Low Dropout Operation: Supports conversion to low output voltages close to input voltage.
9. Internal Compensation: Simplifies design by integrating loop compensation.
10. Package and Temperature Range: Available in an 8-pin SOIC package, suitable for a wide temperature range (-40°C to 150°C).
Overall, the TPS54231D is a compact and efficient solution for power regulation needs in consumer electronics, industrial applications, and other areas where size and performance are critical.

Package

The TPS54231D is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Pinout

The TPS54231D is a 2A, 28V step-down (buck) voltage regulator IC from Texas Instruments. It is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief description of its pin functions:
1. BOOT: Bootstrap pin for the high-side gate drive. Connect a capacitor between BOOT and PH pins.
2. VIN: Input voltage supply pin. Connects to the input power source.
3. EN: Enable pin. Used to enable or disable the device. Pull high to enable the regulator.
4. SS/TR: Soft-start or tracking pin. Connect a capacitor to set the soft-start timing or apply a voltage for tracking.
5. COMP: Compensation pin. Used for external compensation network to stabilize the control loop.
6. GND: Ground pin. Reference point for the circuit.
7. VSENSE: Feedback pin for voltage sensing. Connects to an external resistor divider from the output voltage.
8. PH: Phase pin. Connects to the inductor and provides the switching node.
These pins collectively enable the TPS54231D to regulate and control output voltage efficiently.

Manufacturer

The TPS54231D is manufactured by Texas Instruments, an American technology company. Texas Instruments is renowned for designing and manufacturing semiconductors and various integrated circuits. It is one of the largest manufacturers of analog technology components and digital embedded processors. The company serves a wide array of industries including automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The TPS54231D is a step-down DC-DC converter commonly used in areas requiring efficient power management. Its application areas include consumer electronics, industrial equipment, telecommunications, and automotive systems. It is ideal for powering microcontrollers, DSPs, FPGAs, and other digital circuits in these applications due to its high efficiency and compact size. The converter is also used in point-of-load power supply solutions and battery-powered devices.

Equivalent

The TPS54231D is a 2A, 28V, step-down (buck) voltage regulator from Texas Instruments. Equivalent products from other manufacturers include:
1. LM2596 by Texas Instruments - 3A, 40V buck regulator.
2. MP1584 by Monolithic Power Systems - 3A, 28V buck converter.
3. LMR16006 by Texas Instruments - 0.6A, 60V buck regulator.
4. MC34063A from ON Semiconductor - 1.5A, DC-DC converter.
5. LT1375 by Analog Devices - 1.5A, 25V buck regulator.
These alternatives vary slightly in specifications, so verify compatibility for your application.

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