TPS54335ADDA

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TPS54335ADDA

IC REG BUCK ADJUSTABLE 3A 8SOPWR

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  • 製造商。 部分 #TPS54335ADDA
  • 包 8-PowerSOIC
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規格

Package Bulk,Tube
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 4.5V
Voltage-Input(Max) 28V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 24V
Current-Output 3A
Frequency-Switching 50kHz ~ 1.5MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 8-PowerSOIC (0.154, 3.90mm Width)

概述

Description

The TPS54335ADDA is a step-down (buck) regulator from Texas Instruments, designed for high-efficiency power conversion. It belongs to the TPS54335A family, which is known for its performance in applications requiring stable voltage outputs. The device operates with a wide input voltage range, typically between 4.5V to 28V, and can deliver up to 3A of continuous output current. This makes it suitable for various applications such as industrial equipment, consumer electronics, and communication devices.
Key features of the TPS54335ADDA include an adjustable output voltage, high efficiency due to low-power consumption, and protection features like over-current protection, thermal shutdown, and under-voltage lockout. It also offers a high switching frequency, which allows for the use of smaller external components, thereby reducing the overall design size. The device also supports a sleep mode for improved efficiency at light loads.
The TPS54335ADDA is usually packaged in a thermally enhanced 8-pin SO PowerPAD™ package, which helps in efficient heat dissipation. Its robust design and flexible features make it a versatile choice for designers looking to implement efficient power management solutions.

Features

The TPS54335ADDA is a DC-DC step-down converter designed by Texas Instruments. Key features include:
1. Input Voltage Range: Supports a wide input voltage range from 4.5V to 28V, making it versatile for various applications.

2. Output Voltage: Capable of delivering an adjustable output voltage as low as 0.8V.
3. Output Current: Can provide an output current up to 3A.
4. Efficiency: Offers high efficiency for optimal power conversion, which reduces heat generation and enhances system reliability.
5. Switching Frequency: Operates at a fixed switching frequency of up to 700kHz, which helps in minimizing external component size.
6. Soft Start: Incorporates an adjustable soft-start feature to prevent inrush current during startup.
7. Thermal Shutdown: Includes thermal shutdown protection to guard against overheating.
8. Cycle-by-Cycle Current Limit: Provides current limit protection to prevent damage under overload conditions.
9. Package: Available in a space-saving 8-pin PowerPAD™ SOIC package, enhancing thermal performance and ease of use in compact designs.
These features make the TPS54335ADDA suitable for powering digital circuits, consumer electronics, and other applications requiring efficient step-down voltage regulation.

Package

The TPS54335ADDA is a step-down converter from Texas Instruments and comes in an 8-pin SO PowerPAD package, identified as DDA (SOIC) package type. This package allows for efficient thermal performance and is suitable for space-constrained applications.

Pinout

The TPS54335ADDA is a DC-DC buck converter from Texas Instruments, typically used in power management applications. It comes in an 8-pin SO PowerPAD package. Here's a brief overview of the pin functions:
1. VIN: Input voltage supply pin. This pin accepts a voltage range typically between 4.5V and 28V.
2. EN: Enable pin. This pin is used to enable or disable the device. A high voltage enables the device, while a low voltage disables it.
3. SS/TR: Soft Start/Tracking pin. This pin is used to control the soft start of the converter, allowing for gradual increase in output voltage.
4. RT/CLK: Frequency setting and synchronization pin. This pin is used to set the switching frequency or synchronize it with an external clock.
5. GND: Ground pin. This pin is the reference point for the circuit.
6. VSENSE: Feedback voltage pin. This pin is used to sense the output voltage for regulation.
7. BOOT: Bootstrap pin. This pin provides a voltage higher than the input to drive the high-side MOSFET.
8. PH: Phase pin. This is the switching node that connects to the inductor, serving as the point where the PWM signal is applied to the inductor.

Manufacturer

The TPS54335ADDA is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. TI is known for its innovations in analog and embedded processing technologies, which are used in various applications across different industries, including automotive, industrial, consumer electronics, and communications. The company is headquartered in Dallas, Texas, and has a significant global presence.

Application

The TPS54335ADDA is a DC-DC converter used in applications requiring efficient power management and voltage regulation. It is suitable for use in telecommunications equipment, industrial computing, consumer electronics, and automotive systems. It supports point-of-load power supply designs and can be used in distributed power architectures to provide step-down conversion from a higher voltage supply rail to lower voltage levels required by processors, memory, and other digital circuits.

Equivalent

The TPS54335ADDA is a synchronous buck converter from Texas Instruments. Equivalent products include:
1. LM2596 - a step-down voltage regulator from Texas Instruments.
2. MP1584 - a synchronous buck converter from Monolithic Power Systems.
3. LM2678 - a high-efficiency step-down regulator from Texas Instruments.
4. LT1933 - a high-frequency step-down converter from Analog Devices.
When selecting an equivalent, ensure that the specifications such as input voltage range, output current, switching frequency, and package type match your requirements.

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