TPS54331DDAR

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TPS54331DDAR

IC REG BUCK ADJUSTABLE 3A 8SOPWR

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規格

Package Tape & Reel (TR),Cut Tape (CT)
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 3A
Frequency-Switching 570kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 8-PowerSOIC (0.154, 3.90mm Width)

概述

Description

The TPS54331DDAR is a step-down (buck) DC-DC converter from Texas Instruments. It is part of the TPS54331 series, designed for high-efficiency and low-power applications. This converter can deliver up to 3 A output current and operates from a 3.5 V to 28 V input voltage range, making it suitable for a variety of applications, including consumer electronics and industrial devices.
Key features of the TPS54331 include a fixed 570 kHz switching frequency, which allows for a compact solution with smaller external components. It also features a high-efficiency rating due to its low RDS(on) MOSFET and pulse-skipping Eco-mode for light-load efficiency. Protection features include overcurrent protection, thermal shutdown, and undervoltage lockout.
The TPS54331 is available in a space-saving 8-pin SOIC (Small Outline Integrated Circuit) package with a PowerPAD for improved thermal performance. This makes it an attractive choice for designers looking for a compact, efficient, and reliable DC-DC conversion solution.

Features

The TPS54331DDAR is a step-down DC-DC converter with an integrated high-side MOSFET, capable of delivering up to 3 A of continuous output current. It operates with a wide input voltage range of 3.5 V to 28 V, making it suitable for a variety of applications, including consumer electronics and industrial systems.
Key features include:
- High Efficiency: The device offers high efficiency, peaking around 95%, due to its low-resistance MOSFET.
- Adjustable Output Voltage: Users can set the output voltage as low as 0.8 V via an external resistor divider.
- Switching Frequency: It has a fixed switching frequency of 570 kHz, which allows the use of small external components.
- Current Mode Control: This feature provides fast transient response and simple loop compensation.
- Internal Compensation: Simplifies the design and improves stability.
- Low Dropout: Operates efficiently even at low dropout conditions.
- Protection Features: Includes over-current protection, thermal shutdown, and under-voltage lockout to enhance reliability.
- Compact Package: Available in a thermally enhanced SOIC-8 package.
These features make the TPS54331DDAR ideal for powering a wide range of microcontrollers, DSPs, and FPGAs.

Package

The TPS54331DDAR is a Texas Instruments DC-DC converter with a DDA package type, specifically an 8-pin SO PowerPAD package, designed for high-efficiency step-down voltage regulation.

Pinout

The TPS54331DDAR is a DC-DC buck converter from Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The primary function of this device is to step down a higher voltage to a lower voltage with a high-efficiency output. Here's a brief overview of its pin functions:
1. BOOT: Bootstrap capacitor connection for the high-side FET driver.
2. VIN: Input voltage supply.
3. EN: Enable pin; a high signal enables the device.
4. SS/TR: Soft-start and tracking pin; used to set the soft-start time.
5. GND: Ground reference.
6. COMP: Compensation pin; used to stabilize the feedback loop.
7. VSENSE: Feedback voltage pin for output voltage regulation.
8. SW: Switch node; output of the internal high-side MOSFET.
This converter is commonly used in various applications, including consumer electronics, telecommunications, and industrial power systems, due to its compact size and efficient performance.

Manufacturer

The TPS54331DDAR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. The company primarily focuses on developing analog chips and embedded processors, which are widely used in electronics across various industries, including automotive, industrial, personal electronics, and communications equipment. TI is known for its innovation in the semiconductor industry and has a significant global presence.

Application

The TPS54331DDAR is a step-down DC-DC converter used in various applications. Its primary areas of application include power management in consumer electronics, telecommunications equipment, and industrial systems. It is suitable for use in devices requiring stable voltage regulation, such as embedded systems, computer peripherals, and portable electronics. Its efficiency and compact design make it ideal for use in point-of-load power supplies and battery-powered applications.

Equivalent

The TPS54331DDAR is a step-down (buck) DC-DC converter from Texas Instruments. Equivalent products include:
1. LM2596 - A popular step-down regulator by Texas Instruments.
2. MP2307 - A high-frequency step-down converter by Monolithic Power Systems.
3. LMR33630 - A synchronous buck converter by Texas Instruments.
4. APW7142 - A buck converter by Anpec Electronics.
5. RT8250 - A step-down converter by Richtek.
Always verify electrical characteristics and pin compatibility when selecting replacements.

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