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TPS628304

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2.25-V to 5.5-V, 4-A step-down converter with 1% accuracy in small QFN and SOT583 packages

Product details

Vin (min) (V) 2.25 Vin (max) (V) 5.5 Vout (min) (V) 0.5 Vout (max) (V) 4.5 Iout (max) (A) 4 Iq (typ) (mA) 0.008 Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 EMI features Integrated capacitors, Low parasitic Hotrod packaging Features 1.2-V compatible control inputs, Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode Constant on-time (COT), DCS-Control Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 2.25 Vin (max) (V) 5.5 Vout (min) (V) 0.5 Vout (max) (V) 4.5 Iout (max) (A) 4 Iq (typ) (mA) 0.008 Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 EMI features Integrated capacitors, Low parasitic Hotrod packaging Features 1.2-V compatible control inputs, Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode Constant on-time (COT), DCS-Control Duty cycle (max) (%) 100 Type Converter
SOT-5X3 (DRL) 8 3.36 mm² 2.1 x 1.6 WQFN-HR (RZE) 8 2 mm² 1 x 2
  • Available as an integrated-inductor power module
  • 2.25-V to 5.5-V input voltage range
  • 0.5-V to 4.5-V adjustable output voltage
  • 1% FB voltage accuracy (–40°C to 125°C T J)
  • 2.0-MHz switching frequency
  • 35-mΩ and 18-mΩ internal power MOSFETs
  • DCS-Control topology
  • Optimized EMI performance
  • Facilitates CISPR 11/32 compliance
    • Integrated on-chip noise-filtering capacitors
    • Measurements according to CISPR available
  • Excellent transient response
  • MODE pin for conduction mode selection
  • Supports 1.2-V GPIO
  • 100% duty cycle for lowest dropout
  • Active output discharge
  • Power-good output
  • Thermal shutdown protection
  • Hiccup or latch-off OCP/OVP
  • PSpice and SIMPLIS models available
  • Create a custom design using the TPS62830x with WEBENCH® Power Designer
  • Available as an integrated-inductor power module
  • 2.25-V to 5.5-V input voltage range
  • 0.5-V to 4.5-V adjustable output voltage
  • 1% FB voltage accuracy (–40°C to 125°C T J)
  • 2.0-MHz switching frequency
  • 35-mΩ and 18-mΩ internal power MOSFETs
  • DCS-Control topology
  • Optimized EMI performance
  • Facilitates CISPR 11/32 compliance
    • Integrated on-chip noise-filtering capacitors
    • Measurements according to CISPR available
  • Excellent transient response
  • MODE pin for conduction mode selection
  • Supports 1.2-V GPIO
  • 100% duty cycle for lowest dropout
  • Active output discharge
  • Power-good output
  • Thermal shutdown protection
  • Hiccup or latch-off OCP/OVP
  • PSpice and SIMPLIS models available
  • Create a custom design using the TPS62830x with WEBENCH® Power Designer

The TPS62830x is an easy-to-use, synchronous, step-down, DC/DC converters family with low quiescent current. Based on the DCS-Control topology, TPS62830x provides a fast transient response with small output capacitance. The internal reference allows to regulate the output voltage down to 0.5 V with a high feedback voltage accuracy of 1% over the junction temperature range of –40°C to 125°C. The family is available in two packages and each package devices are pin-to-pin compatible.

The TPS62830x has a MODE pin to control the device mode of operation. Power save mode maintains high efficiency down to very light loads for extending the system battery run-time. Forced-PWM mode maintains a continuous conduction mode to make sure the least ripple in the output voltage and a quasi-fixed switching frequency. The device features a Power-Good signal and a well-controlled internal soft-start circuit. TPS62830x is able to operate in 100% mode. For fault protection, TPS62830x incorporates a HICCUP short-circuit protection as well as a thermal shutdown. One device option has a latch-off protection for short circuit as well as overvoltage incidents. The family is available in two packages: an 8-pin 1.0-mm × 2.0-mm QFN package, offering the highest power density design, and an 8-pin 1.6-mm × 2.1-mm SOT583 package, offering an easy-to-assemble designs.

The TPS62830x is an easy-to-use, synchronous, step-down, DC/DC converters family with low quiescent current. Based on the DCS-Control topology, TPS62830x provides a fast transient response with small output capacitance. The internal reference allows to regulate the output voltage down to 0.5 V with a high feedback voltage accuracy of 1% over the junction temperature range of –40°C to 125°C. The family is available in two packages and each package devices are pin-to-pin compatible.

The TPS62830x has a MODE pin to control the device mode of operation. Power save mode maintains high efficiency down to very light loads for extending the system battery run-time. Forced-PWM mode maintains a continuous conduction mode to make sure the least ripple in the output voltage and a quasi-fixed switching frequency. The device features a Power-Good signal and a well-controlled internal soft-start circuit. TPS62830x is able to operate in 100% mode. For fault protection, TPS62830x incorporates a HICCUP short-circuit protection as well as a thermal shutdown. One device option has a latch-off protection for short circuit as well as overvoltage incidents. The family is available in two packages: an 8-pin 1.0-mm × 2.0-mm QFN package, offering the highest power density design, and an 8-pin 1.6-mm × 2.1-mm SOT583 package, offering an easy-to-assemble designs.

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Technical documentation

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* Data sheet TPS62830x, 2.25-V to 5.5-V Input, 1-, 2-, 3-, 4-A Step-Down Converter With 1% Output Accuracy in Small WQFN and SOT583 Packages datasheet (Rev. A) PDF | HTML 16 Oct 2023

Design & development

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

Evaluation board

TPS628304ADRLEVM — TPS628304A evaluation module for 4-A step-down converter in SOT583 package

The TPS628304ADRLEVM evaluation module (EVM) facilitates the evaluation of the TPS628304A, a 4.0 A, step-down converter in a 1.6 mm × 2.1 mm x 0.6 mm SOT583 package. The EVM converts a 2.25 V to 5.5 V input voltage to a regulated output voltage of 1.8 V. The TPS628304A is a synchronous (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS628304ARZEREVM — TPS628304A evaluation module for 4-A step-down converter in QFN package

The TPS628304ARZEREVM evaluation module (EVM) facilitates the evaluation of the TPS628304A, a 4.0 A, step-down converter in a 1.0 mm × 2.0 mm x 0.8 mm QFN package. The EVM converts a 2.25 V to 5.5 V input voltage to a regulated output voltage of 1.8 V. The TPS628304A is a synchronous (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS628304A SIMPLIS Encrypted Transient and Average Model

SLVME28.ZIP (3973 KB) - SIMPLIS Model
Gerber file

TPS628304ARZEREVM Gerber Files

SLUC716.ZIP (1670 KB)
Gerber file

TPS628304ADRLEVM Gerber Files

SLUC717.ZIP (1670 KB)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
SOT-5X3 (DRL) 8 View options
WQFN-HR (RZE) 8 View options

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