TPS54331D Texas Instruments - Semiconductors - ICs

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Details for TPS54331D by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

TPS54331D

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BUCK 3.5-28V 3A 570KHZ 8SOIC

PCB Footprint

TPS54331D by Texas Instruments

BUCK 3.5-28V 3A 570KHZ 8SOIC

Features

3.5 to 28-V Input Voltage Range

Adjustable Output Voltage Down to 0.8 V

Adjustable Slow-Start Limits Inrush Currents

Available in Easy-to-Use SOIC8 Package or Thermally Enhanced SOIC8 PowerPADu2122 Package

Cycle-by-Cycle Current Limit, Frequency Fold Back, and Thermal Shutdown Protection

Fixed 570 kHz Switching Frequency

High Efficiency at Light Loads With a Pulse Skipping Eco-modeu2122

Integrated 80-mu2126 High-Side MOSFET Supports up to 3-A Continuous Output Current

Overvoltage Transient Protection

Programmable UVLO Threshold

Supported by WEBENCHu00ae

Typical 1-u03bcA Shutdown Quiescent Current

Part Information

RoHS Compliant

PCB Footprint

Description

The TPS54331 device is a 28-V, 3-A nonsynchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode feature is automatically activated. Furthermore, the 1-μA shutdown supply-current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current-limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54331 device is available in an 8-pin SOIC package and 8-pin SO PowerPAD package that have been internally optimized to improve thermal performance.

Specifications

Topology:

Buck (Step Down)

Input Voltage Min:

3.5V

Input Voltage Max:

28V

No. of Outputs:

1Outputs

DC / DC Converter IC Case:

SOIC

No. of Pins:

8Pins

Output Current:

Output Voltage Min:

800mV

Output Voltage Max:

25V

Switching Frequency:

570kHz

Operating Temperature Max:

150°C

Product Range:

Automotive Qualification Standard:

RoHS Phthalates Compliant:

Yes

MSL:

MSL 1 - Unlimited

SVHC:

No SVHC (27-Jun-2018)

Accuracy %:

Adjustable Output Voltage Min:

0.8V

Base Number:

54331

Frequency:

570kHz

Operating Temperature Min:

-40°C

Operating Temperature Range:

-40°C to +150°C

Output Voltage:

25V

Primary Input Voltage:

28V

Supply Voltage Min:

3.5V

Switch Output Current Isw Max:

3.5A

Termination Type:

Surface Mount Device

Voltage Regulator Type:

Buck

Alternate Descriptions

Conv DC-DC Single-OUT Step Down RS Components

BUCK, 3.5-28V, 3A, 570KHZ, 8SOIC; Topology:Buck (Step Down); Input Voltage Min:3.5V; Input Voltage Max:28V; No. of Outputs:1Outputs; DC / DC Converter IC Case:SOIC; No. of Pins:8Pins; Output Current:3A; Output Voltage Min:800mV; RoHS Compliant: Yes Newark Electronics

Conv DC-DC Single Step Down 3.5V to 28V 8-Pin SOIC Tube Avnet America

PMIC; DC/DC converter; Uin:3.5÷28V; Uout:0.8÷25V; SO8; buck Transfer Multisort Elektronik

Conv DC-DC Single Step Down 3.5V to 28V 8-Pin SOIC Tube Avnet Europe

3.5V to 28V Input, 3A, 570kHz Step-Down Converter with Eco-mode Texas Instruments