TPS54233

Name: TPS54233
Brand: TI
SKU: TPS54233
Price: 0.683 USD

ACTIVE

3.5 to 28V Input, 2A, 300kHz Step-Down Converter with Eco-mode

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Data sheet

document-pdfAcrobat TPS54233 2A, 28V Input, Step Down DC/DC Converter With Eco-mode™ datasheet (Rev. C) PDF | HTML

TPS54233

ACTIVE

Data sheet

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Product details

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Topology

Buck

Type

Converter

Iout (max) (A)

2

Vin (min) (V)

3.5

Vin (max) (V)

28

Switching frequency (min) (kHz)

300

Switching frequency (max) (kHz)

300

Features

Enable, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable

Control mode

current mode

Vout (min) (V)

0.8

Vout (max) (V)

25

Iq (typ) (µA)

75

Duty cycle (max) (%)

90

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Topology

Buck

Type

Converter

Iout (max) (A)

2

Vin (min) (V)

3.5

Vin (max) (V)

28

Switching frequency (min) (kHz)

300

Switching frequency (max) (kHz)

300

Features

Enable, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable

Control mode

current mode

Vout (min) (V)

0.8

Vout (max) (V)

25

Iq (typ) (µA)

75

Duty cycle (max) (%)

90

SOIC (D)

8

29.4 mm² 4.9 x 6

3.5 V to 28 V Input Voltage Range
Adjustable Output Voltage Down to 0.8 V
Integrated 80 mΩ High Side MOSFET Supports
up to 2A Continuous Output Current
High Efficiency at Light Loads with a Pulse
Skipping Eco-mode™
Fixed 300 kHz Switching Frequency
Typical 1 µA Shutdown Quiescent Current
Adjustable Slow Start Limits Inrush Currents
Programmable UVLO Threshold
Overvoltage Transient Protection
Cycle by Cycle Current Limit, Frequency Fold
Back and Thermal Shutdown Protection
Available in Easy-to-Use SOIC8 Package
Supported by WEBENCH^® Software Tool
(www.TI.com/WEBENCH)
APPLICATIONS
- Consumer Applications such as Set-Top Boxes,
  CPE Equipment, LCD Displays, Peripherals, and
  Battery Chargers
- Industrial and Car Audio Power Supplies
- 5V, 12V and 24V Distributed Power Systems

WEBENCH Is a trademark of Texas Instruments
All other trademarks are the property of their respective owners

3.5 V to 28 V Input Voltage Range
Adjustable Output Voltage Down to 0.8 V
Integrated 80 mΩ High Side MOSFET Supports
up to 2A Continuous Output Current
High Efficiency at Light Loads with a Pulse
Skipping Eco-mode™
Fixed 300 kHz Switching Frequency
Typical 1 µA Shutdown Quiescent Current
Adjustable Slow Start Limits Inrush Currents
Programmable UVLO Threshold
Overvoltage Transient Protection
Cycle by Cycle Current Limit, Frequency Fold
Back and Thermal Shutdown Protection
Available in Easy-to-Use SOIC8 Package
Supported by WEBENCH^® Software Tool
(www.TI.com/WEBENCH)
APPLICATIONS
- Consumer Applications such as Set-Top Boxes,
  CPE Equipment, LCD Displays, Peripherals, and
  Battery Chargers
- Industrial and Car Audio Power Supplies
- 5V, 12V and 24V Distributed Power Systems

WEBENCH Is a trademark of Texas Instruments
All other trademarks are the property of their respective owners

The TPS54233 is a 28 V, 2 A non-synchronous buck converter that integrates a low R_DS(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 under-voltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle by cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54233 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.

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Technical documentation

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	Type	Title		Date
*	Data sheet	TPS54233 2A, 28V Input, Step Down DC/DC Converter With Eco-mode™ datasheet (Rev. C)	PDF \| HTML	30 Jan 2015
	User guide	TPS54233 Step-Down Converter Evaluation Module User's Guide (Rev. A)	PDF \| HTML	26 Oct 2021
	Selection guide	Power Management Guide 2018 (Rev. R)		25 Jun 2018
	Application note	Understanding Eco-mode(TM) Operation		05 Dec 2016
	Application note	Create an Inverting Power Supply from a Step-Down Regulator (Rev. B)		26 Oct 2012
	Application note	Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A)		15 Sep 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS54233EVM-373 — Evaluation Module for TPS54233 Step-Down Converter with Eco-mode

The TPS54233 dc/dc converter is designed to provide up to a 2 A output from an input voltage source of 3.5 V to 28 V. Rated input voltage and output current range for the evaluation module are given in Table 1 of the User Guide. This evaluation module is designed to demonstrate the small (...)

User guide: PDF | HTML

Not available on TI.com

Simulation model

TPS54233 Unencrypted PSpice Transient Model Package (Rev. B)

SLUM209B.ZIP (228 KB) - PSpice Model

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Calculation tool

SWIFTINV-CALC — SWIFT™ Converter Inverting Buck/Boost Calculator

The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)

Supported products & hardware

Products

AC/DC & DC/DC converters (integrated FET)

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TPS54160 — 3.5V to 60V Input, 1.5A Step-Down Converter with Eco-Mode

TPS54231 — 3.5 to 28V Input, 2A, 570kHz Step-Down Converter with Eco-mode™

TPS54232 — 3.5-V to 28-V input, 2-A step-down converter with eco-mode

TPS54233 — 3.5 to 28V Input, 2A, 300kHz Step-Down Converter with Eco-mode

TPS54260 — 3.5V to 60V Input, 2.5A Step-Down Converter with Eco-Mode

TPS54331 — 3.5V to 28V Input, 3A, 570kHz Step-Down Converter with Eco-mode

TPS54332 — 3.5V to 28V Input, 3.5A, 1MHz Step-Down Converter with Eco-mode

TPS54340 — 42 V Input, 3.5 A, Step-Down DC/DC Converter with Eco-mode™

TPS54360 — 4.5V to 60 V Input, 3.5 A Step-Down Converter with Eco-mode

TPS54360B — 60-V input, 3.5-A, step-down DC/DC converter with Eco-Mode™

TPS54540 — 42 V, 5 A, Step-Down DC-DC Converter with Eco-Mode

TPS54560 — 4.5V to 60 V input, 5 A step-down converter with Eco-Mode

TPS54560B — 4.5-V to 60-V input, 5-A, step-down DC-DC converter with Eco-mode™

TPS54561 — 4.5V to 60V Input 5A Step-Down DC-DC Converter With Soft-Start and Eco-mode™

Download

Calculation tool

SWIFTPOSNEG-CALC — TPS54160 Pos/Neg Calculation Utility Download

The SWIFTPosNeg-CALC Excel sheet is a complementary worksheet to the SLVA369 application note.

This worksheet is used to calculate the external components needed to create a dual output (i.e. positive and negative) power supply using a step-down switching regulator and catalog off the shelf coupled (...)