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TPS54428DDAR

IC REG BUCK ADJUSTABLE 4A 8SOPWR

TPS54428DDAR
  • TPS54428DDAR
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TPS54428DDAR

IC REG BUCK ADJUSTABLE 4A 8SOPWR

  • Fabricant：

    TI

  • Fiche de données：

    TPS54428DDAR datasheet

  • Colis/Caisse：

    SOP-8

  • catégorie de produit：

    Puces IC

  • RoHS Status： Statut RoHS Lead free/RoHS Compliant

Soumettez votre demande de devis maintenant et nous espérons vous fournir un devis dans les délais mai 21, 2026. Passez votre commande maintenant et nous prévoyons de finaliser la transaction dans les mai 26, 2026. Ps : L’heure est conforme à GMT+8h00.

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TPS54428DDAR détails du produit

1 FEATURE

• D-CAP2™ Mode Enables Fast TransientResponse

• Low Output Ripple and Allows Ceramic OutputCapacitor

• Wide VIN Input Voltage Range: 4.5 V to 18 V 

• Output Voltage Range: 0.76 V to 7.0 V

 • Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications

  – 70 mΩ (High Side) and 53 mΩ (Low Side)

• High Efficiency, Less Than 10 μA at Shutdown

• High Initial Bandgap Reference Accuracy

• Adjustable Soft Start

• Pre-Biased Soft Start

• 650-kHz Switching Frequency (fSW) • Cycle By Cycle Over Current Limit

• Auto-Skip Eco-mode™ for High Efficiency at Light Load


2 APPLICATIONS

• Wide Range of Applications for Low Voltage System

  – Digital TV Power Supply

  – High Definition Blu-ray Disc™ Players

  – Networking Home Terminal

  – Digital Set Top Box (STB)


3 DESCRIPTION


The TPS54428 is an adaptive on-time D-CAP2"mode synchronous buck converter.
The TPS54428 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution.
The main control loop for the TPS54428 uses the D-CAP2mM mode control that provides a fast transient response with no external compensation components.
The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode"m operation at light loads. Eco-modeT allows the TPS54428 to maintain high efficiency during lighter load conditions.
The TPS54428 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance(ESR)output capacitors, such as POSCAP or SP-CAP,and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18 V VN input.
The output voltage can be programmed between 0.76 V and 7.0 V.
The device also features an adjustable soft start time. The TPS54428 is available in the 8-pin DDA package,and designed to operate from -40°C to 85°C."

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Description

The TPS54428DDAR is a high-efficiency, synchronous buck converter from Texas Instruments. It features an adjustable soft start, wide input voltage range, low output ripple, and optimized FETs for efficient power management. This IC finds applications in industrial automation, telecommunications, consumer electronics, and automotive systems where compactness, reliability, and energy efficiency are key requirements.

Features

The TPS54428DDAR features a compact, high-efficiency synchronous buck converter. Key highlights include:
Fast transient response with D-CAP2™ mode.
Low output ripple for ceramic capacitors.
Wide input voltage range (4.5V to 18V).
Output voltage tuning from 0.76V to 7.0V.
High-side and low-side FETs with low resistance (70mΩ high side, 53mΩ low side).
Low shutdown current (<10µA) for efficient power management.
Accurate initial bandgap reference and adjustable soft start.
Pre-biased soft start for faster startup performance.
Switching frequency of up to 650 kHz (fSW). 1
Cycle-by-cycle overcurrent limiting ensures device safety. These features make the TPS54428DDAR suitable for a wide range of power management applications demanding high efficiency and compact design.

Package

The TPS54428DDAR has a Package type of HSOIC (DDA)-8, which is a small, surface-mount package suitable for high-density applications.

Pinout

The TPS54428DDAR synchronous buck converter doesn't specify a pin count or detailed functions in the provided information. To find out the specific pinout and functions, you would typically consult the product datasheet from Texas Instruments.

Manufacturer

The TPS54428DDAR is manufactured by Texas Instruments (TI), a leading global semiconductor company. TI specializes in developing innovative solutions for various industries, including electronics, automotive, and telecommunications.

Applications

The TPS54428DDAR is a high-efficiency synchronous buck converter ideal for applications in industrial automation, telecommunications, consumer electronics, and automotive systems. Its features make it suitable for power management in these industries.

Equivalent

The equivalent products of TPS54428DDAR by Texas Instruments likely include other high-efficiency synchronous buck converters in their product line with similar features. Examples may be TPS543x or TPS547x series devices.

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Q&A for TPS54428DDAR

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Politique de retour

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