NEW

TPS628303

ACTIVE

2.25-V to 5.5-V, 3-A step-down converter with 1% accuracy in small QFN and SOT583 packages

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 2.25 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 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 EMI features Integrated capacitors Control mode DCS-Control Vout (min) (V) 0.5 Vout (max) (V) 4.5 Iq (typ) (µA) 7 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 2.25 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 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 EMI features Integrated capacitors Control mode DCS-Control Vout (min) (V) 0.5 Vout (max) (V) 4.5 Iq (typ) (µA) 7 Duty cycle (max) (%) 100
SOT-5X3 (DRL) 8 3.36 mm² 2.1 x 1.6 WQFN-HR (RZE) 8 2 mm² 1 x 2
  • 2.25V to 5.5V input voltage range
  • 0.5V to 4.5V adjustable output voltage
  • 1% FB voltage accuracy (–40°C to 125°C TJ)
  • Optimized EMI performance
  • Facilitates CISPR 11/32 compliance
    • Integrated on-chip noise-filtering capacitors
    • Measurements according to CISPR available
  • Excellent transient response
  • 7µA operating quiescent current
  • 2.0MHz switching frequency
  • 35mΩ and 18mΩ internal power MOSFETs
  • DCS-Control topology
  • MODE pin for conduction mode selection
  • Supports 1.2V GPIO
  • 100% duty cycle for lowest dropout
  • Active output discharge
  • Power-good output
  • Thermal shutdown protection
  • Hiccup or latch-off OCP/OVP
  • SIMPLIS model available
  • Create a custom design using the TPS62830x with WEBENCH® Power Designer
  • 2.25V to 5.5V input voltage range
  • 0.5V to 4.5V adjustable output voltage
  • 1% FB voltage accuracy (–40°C to 125°C TJ)
  • Optimized EMI performance
  • Facilitates CISPR 11/32 compliance
    • Integrated on-chip noise-filtering capacitors
    • Measurements according to CISPR available
  • Excellent transient response
  • 7µA operating quiescent current
  • 2.0MHz switching frequency
  • 35mΩ and 18mΩ internal power MOSFETs
  • DCS-Control topology
  • MODE pin for conduction mode selection
  • Supports 1.2V GPIO
  • 100% duty cycle for lowest dropout
  • Active output discharge
  • Power-good output
  • Thermal shutdown protection
  • Hiccup or latch-off OCP/OVP
  • SIMPLIS model 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 0.5V 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 1.0mm × 2.0mm QFN package, offering the highest power density design, and an 8-pin 1.6mm × 2.1mm 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 0.5V 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 1.0mm × 2.0mm QFN package, offering the highest power density design, and an 8-pin 1.6mm × 2.1mm SOT583 package, offering an easy-to-assemble designs.

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Technical documentation

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Type Title Date
* Data sheet TPS62830x, 2.25V to 5.5V Input, 1, 2, 3, 4A Step-Down Converter With 1% Output Accuracy in Small WQFN and SOT583 Packages datasheet (Rev. B) PDF | HTML 27 Mar 2024
Application note Power Supply Design for AMD Versal™ AI Edge Series PDF | HTML 29 Jan 2024
Certificate TPS628303ARZEREVM EU RoHS Declaration of Conformity (DoC) 08 Dec 2022
Certificate TPS628303BDRLEVM EU RoHS Declaration of Conformity (DoC) 08 Dec 2022
Certificate TPS628303ADRLEVM EU RoHS Declaration of Conformity (DoC) 02 Dec 2022

Design & development

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

Evaluation board

TPS628303ADRLEVM — TPS628303A, 3-A, step-down converter in 1.6-mm x 2.1-mm SOT583 package evaluation module

The TPS628303ADRLEVM evaluation module (EVM) facilitates the evaluation of the TPS628303A, a 3.0 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 TPS628303A is a synchronous step-down (...)
User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS628303ARZEREVM — TPS628303A, 3-A, step-down converter in 1.0-mm x 2.0-mm QFN package evaluation module

The TPS628303ARZEREVM evaluation module (EVM) facilitates the evaluation of the TPS628303A, a 3 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 TPS628303A is a synchronous step-down (...)

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

TPS628303BDRLEVM — TPS628303B, 3-A, step-down converter in 1.6-mm x 2.1-mm SOT583 package evaluation module

The TPS628303BDRLEVM evaluation module (EVM) facilitates the evaluation of the TPS628303B, a 3 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 TPS628303B is a synchronous (...)

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

TPS628303A PSPICE Encrypted Transient Model

SLVME47.ZIP (1645 KB) - PSpice Model
Simulation model

TPS628303A SIMPLIS Encrypted Transient and Average Model

SLVME23.ZIP (1531 KB) - SIMPLIS Model
Simulation model

TPS628303B PSPICE Encrypted Transient Model

SLVME74.ZIP (133 KB) - PSpice Model
Simulation model

TPS628303B SIMPLIS Encrypted Transient and Average Model

SLVME31.ZIP (2345 KB) - SIMPLIS Model
Gerber file

TPS628303ARZEREVM Gerber Files

SLVC849.ZIP (1670 KB)
Gerber file

TPS628303xDRLEVM Gerber Files

SLVC850.ZIP (1670 KB)
Package Pins CAD symbols, footprints & 3D models
SOT-5X3 (DRL) 8 Ultra Librarian
WQFN-HR (RZE) 8 Ultra Librarian

Ordering & quality

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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

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