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TPS62876-Q1

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Automotive 2.7-V to 6-V input, 25-A, stackable, synchronous buck converter

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Data sheet

TPS62876-Q1

ACTIVE
Data sheet Order now

Product details

Iout (max) (A) 25 Vin (min) (V) 2.7 Vin (max) (V) 6 Topology Buck Type Converter Switching frequency (min) (kHz) 1500 Switching frequency (max) (kHz) 3000 Features Adaptive/dynamic voltage scaling, Differential Remote Sense, Enable, Fixed Output, Forced PWM, Frequency synchronization, I2C, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start, Spread Spectrum Clocking (SSC), Synchronous Rectification, UVLO, Wettable flanks package Control mode DCS-Control Vout (min) (V) 0.4 Vout (max) (V) 1.675 Rating Automotive Operating temperature range (°C) -40 to 125
Iout (max) (A) 25 Vin (min) (V) 2.7 Vin (max) (V) 6 Topology Buck Type Converter Switching frequency (min) (kHz) 1500 Switching frequency (max) (kHz) 3000 Features Adaptive/dynamic voltage scaling, Differential Remote Sense, Enable, Fixed Output, Forced PWM, Frequency synchronization, I2C, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start, Spread Spectrum Clocking (SSC), Synchronous Rectification, UVLO, Wettable flanks package Control mode DCS-Control Vout (min) (V) 0.4 Vout (max) (V) 1.675 Rating Automotive Operating temperature range (°C) -40 to 125
WQFN-FCRLF (RZV) 24 12.3525 mm² 3.05 x 4.05
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: -40°C to 125°C T A
    • –40°C to 150°C junction temperature range
  • Functional Safety-Capable
  • Input voltage range: 2.7 V to 6 V
  • Family of pin-to-pin compatible devices: 15 A, 20 A, 25 A and 30 A
  • 3 selectable output voltage ranges from 0.4 V to 1.675 V
    • 0.4 V to 0.71875 V with 1.25-mV steps
    • 0.4 V to 1.0375 V with 2.5-mV steps
    • 0.4 V to 1.675 V with 5-mV steps
  • Output voltage accuracy: ±0.8%
  • Internal power MOSFETs: 2.6 mΩ and 1.5 mΩ
  • Adjustable soft start
  • External compensation
  • Selectable start-up output voltage through the VSEL pin
  • Selectable switching frequency of 1.5 MHz, 2.25 MHz, 2.5 MHz or 3 MHz, through FSEL pin
  • Forced PWM or power-save mode operation
  • Start-up output voltage selection by external resistor or I 2C
  • I 2C-compatible interface with up to 3.4 MHz
  • Optional stacked operation for increased output current capability
  • Differential remote sense
  • Thermal pre-warning and thermal shutdown
  • Output discharge
  • Optional spread spectrum clocking
  • Power-good output with window comparator
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: -40°C to 125°C T A
    • –40°C to 150°C junction temperature range
  • Functional Safety-Capable
  • Input voltage range: 2.7 V to 6 V
  • Family of pin-to-pin compatible devices: 15 A, 20 A, 25 A and 30 A
  • 3 selectable output voltage ranges from 0.4 V to 1.675 V
    • 0.4 V to 0.71875 V with 1.25-mV steps
    • 0.4 V to 1.0375 V with 2.5-mV steps
    • 0.4 V to 1.675 V with 5-mV steps
  • Output voltage accuracy: ±0.8%
  • Internal power MOSFETs: 2.6 mΩ and 1.5 mΩ
  • Adjustable soft start
  • External compensation
  • Selectable start-up output voltage through the VSEL pin
  • Selectable switching frequency of 1.5 MHz, 2.25 MHz, 2.5 MHz or 3 MHz, through FSEL pin
  • Forced PWM or power-save mode operation
  • Start-up output voltage selection by external resistor or I 2C
  • I 2C-compatible interface with up to 3.4 MHz
  • Optional stacked operation for increased output current capability
  • Differential remote sense
  • Thermal pre-warning and thermal shutdown
  • Output discharge
  • Optional spread spectrum clocking
  • Power-good output with window comparator

The TPS62874 -Q1, TPS62875 -Q1, TPS62876 -Q1 and TPS62877 -Q1 are a family of pin-to-pin 15-A, 20-A, 25-A and 30-A synchronous step-down DC/DC converters with I 2C interface and differential remote sense. All devices offer high efficiency and ease of use. Low-resistance power switches allow up to 30-A output current at high ambient temperature.

The devices can operate in stacked mode to deliver higher output currents or to spread the power dissipation across multiple devices.

The TPS6287x-Q1 family implements an enhanced DCS control scheme that combines fast transient response with fixed-frequency operation. Devices can operate in power-save mode for maximum efficiency, or forced-PWM mode for best transient performance and lowest output voltage ripple.

An optional remote sensing feature maximizes voltage regulation at the point-of-load, and the device achieves ±0.8% DC voltage accuracy for the full output voltage range.

The switching frequency is selectable through the FSEL pin, and can be set to 1.5 MHz, 2.25 MHz, 2.5 MHz or 3 MHz, or synchronized to an external clock in the same frequency range.

The I 2C compatible interface offers several control, monitoring and warning features, such as voltage monitoring and temperature related warnings. The output voltage can be quickly adjusted to adapt the load´s power consumption to the performance needs. The default start-up voltage is resistor selectable through the VSEL pin.

The TPS62874 -Q1, TPS62875 -Q1, TPS62876 -Q1 and TPS62877 -Q1 are a family of pin-to-pin 15-A, 20-A, 25-A and 30-A synchronous step-down DC/DC converters with I 2C interface and differential remote sense. All devices offer high efficiency and ease of use. Low-resistance power switches allow up to 30-A output current at high ambient temperature.

The devices can operate in stacked mode to deliver higher output currents or to spread the power dissipation across multiple devices.

The TPS6287x-Q1 family implements an enhanced DCS control scheme that combines fast transient response with fixed-frequency operation. Devices can operate in power-save mode for maximum efficiency, or forced-PWM mode for best transient performance and lowest output voltage ripple.

An optional remote sensing feature maximizes voltage regulation at the point-of-load, and the device achieves ±0.8% DC voltage accuracy for the full output voltage range.

The switching frequency is selectable through the FSEL pin, and can be set to 1.5 MHz, 2.25 MHz, 2.5 MHz or 3 MHz, or synchronized to an external clock in the same frequency range.

The I 2C compatible interface offers several control, monitoring and warning features, such as voltage monitoring and temperature related warnings. The output voltage can be quickly adjusted to adapt the load´s power consumption to the performance needs. The default start-up voltage is resistor selectable through the VSEL pin.
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Technical documentation

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Type Title Date
* Data sheet TPS6287x-Q12.7-V to 6-V Input, 15-A, 20-A, 25-A,and 30-A AutomotiveFast Transient Synchronous Step-Down Converter with I2C Interface datasheet (Rev. B) PDF | HTML 24 Oct 2023
Test report Power Delivery Reference Design for AMD Versal™ AI Edge Series PDF | HTML 25 Mar 2024
Analog Design Journal 固定頻率 DCS-Control：具有時脈同步的快速瞬態回應 PDF | HTML 13 Feb 2024
Analog Design Journal 고정 주파수 DCS 제어: 클록 동기화를 통한 빠른 과도 응답 PDF | HTML 13 Feb 2024
Analog Design Journal Fixed-frequency DCS-Control: Fast transient response with clock synchronization PDF | HTML 12 Feb 2024
Technical article How to deliver current beyond 100 A to an ADAS processor PDF | HTML 04 Jan 2024
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Application note Benefiting from Step-Down Converters with an I2C Communication Interface (Rev. B) PDF | HTML 29 Nov 2023
EVM User's guide TPS62876 Stackable Buck Converter Evaluation Module User's Guide PDF | HTML 07 Jun 2023
EVM User's guide TPS62876 Buck Converter Evaluation Module User's Guide PDF | HTML 16 Mar 2023
Functional safety information TPS62874-Q1, TPS62875-Q1, TPS62876-Q1 and TPS62877- Q1 Functional Safety FIT Rat 14 Mar 2023
Application note Using the Filters with the DC/DC Step-Down Converter PDF | HTML 02 Feb 2023
Application note Operating TPS6287X-Q1 Devices in a Stacked Configuration PDF | HTML 30 Jan 2023
Certificate TPS62876EVM-198 EU RoHS Declaration of Conformity (DoC) 11 Jan 2023
Certificate TPS62876EVM-199 EU RoHS Declaration of Conformity (DoC) 11 Jan 2023
Application note Adjusting the Output Voltage of a Fixed Output Voltage DC-DC Converter PDF | HTML 22 Dec 2022
Application note Understanding SOA Curves to Operate at High Output Currents and Temperature PDF | HTML 05 May 2022
Application note How to Measure Impedance of a Power Distribution Network of a DC-DC Converter PDF | HTML 20 Jan 2022
Application note Loop Gain Reconstruction of a Step-Down Converter from Output Impedance PDF | HTML 20 Jan 2022
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 22 Mar 2021
White paper Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 14 Oct 2019
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 Oct 2017
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 30 Oct 2015
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 25 Jul 2013
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 Jan 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011

Design & development

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

Evaluation board

TPS62876EVM-198 — TPS62876-Q1 evaluation module 2.7-V to 6-V input, step-down converter

The TPS62876EVM-198 evaulation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPS62876-Q1 buck converter. It also can be used to evaluate TPS62874-Q1, TPS62875-Q1 and TPS62877-Q1 devices. The EVM converts a 2.7 V to 6.0 V input voltage to a (...)

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

TPS62876EVM-199 — TPS62876-Q1 evaluation module 75-A output, stackable step-down converter

The TPS62876EVM-199 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of a stacked configuration of three TPS62876-Q1 buck converters. It can also be used to evaluate TPS62874-Q1, TPS62875-Q1 and TPS62877-Q1 devices. The EVM converts a 2.7 (...)

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

TPS62874-Q1 PSpice Model

SLUM880.ZIP (573 KB) - PSpice Model
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Simulation model

TPS62874-Q1 SIMPLIS Model

SLVME13.ZIP (287 KB) - SIMPLIS Model
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Reference designs

PMP23227 — Power delivery reference design for AMD Versal™ Edge AI series

This reference design demonstrates how the required power rails for the VE2302 device can be powered by TI's regulator ICs. AMD’s Minimum Rails power consolidation of supplies. See AMD’s Power Design Manager (PDM) tool, for all available power consolidation options. Use PDM when estimating power (...)
Test report: PDF
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WQFN-FCRLF (RZV) 24 View options
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