Home Power management DC/DC switching regulators Step-down (buck) regulators Buck converters (integrated switch)
Home
Power management
DC/DC switching regulators
Step-down (buck) regulators
Buck converters (integrated switch)
NEW

TPS62871-Q1

ACTIVE

Automotive 2.7-V to 6-V input, 9-A, stackable, synchronous buck converter

Order now
Data sheet

TPS62871-Q1

ACTIVE
Data sheet Order now

Product details

Vin (min) (V) 2.7 Vin (max) (V) 6 Vout (min) (V) 0.4 Vout (max) (V) 3.3 Iout (max) (A) 9 Iq (typ) (mA) 1.75 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/PMBus, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package Operating temperature range (°C) -40 to 125 Rating Automotive TI functional safety category Functional Safety-Capable Regulated outputs (#) 1 Control mode DCS-Control Duty cycle (max) (%) 55 Type Converter
Vin (min) (V) 2.7 Vin (max) (V) 6 Vout (min) (V) 0.4 Vout (max) (V) 3.3 Iout (max) (A) 9 Iq (typ) (mA) 1.75 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/PMBus, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package Operating temperature range (°C) -40 to 125 Rating Automotive TI functional safety category Functional Safety-Capable Regulated outputs (#) 1 Control mode DCS-Control Duty cycle (max) (%) 55 Type Converter
VQFN-FCRLF (RXS) 16 9.0525 mm² 2.55 x 3.55
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 2.7-V to 6-V input voltage range
  • Family of pin-to-pin compatible devices: 6-A, 9-A, 12-A, and 15-A
  • Four output voltage ranges:
    • 0.4-V to 0.71875-V in 1.25-mV steps
    • 0.4-V to 1.0375-V in 2.5-mV steps
    • 0.4-V to 1.675-V in 5-mV steps
    • 0.8-V to 3.35-V in 10-mV steps
  • Output voltage accuracy ±1%
  • 7-mΩ and 4.5-mΩ internal power MOSFETs
  • Adjustable external compensation
  • Resistor-selectable start-up output voltage
  • Resistor-selectable switching frequency
  • Power-save or forced-PWM operation
  • I2C-compatible interface up to 1-MHz
  • Differential remote sensing
  • Optional stacked operation for increased output current capability
  • Thermal warning and thermal shutdown
  • Precise enable input
  • Active output discharge
  • Optional spread-spectrum clocking
  • Power-good output with a window comparator
  • Available in 2.55-mm × 3.55-mm × 1-mm VQFN package with wettable flanks
  • –40°C to 150°C junction temperature, TJ
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 2.7-V to 6-V input voltage range
  • Family of pin-to-pin compatible devices: 6-A, 9-A, 12-A, and 15-A
  • Four output voltage ranges:
    • 0.4-V to 0.71875-V in 1.25-mV steps
    • 0.4-V to 1.0375-V in 2.5-mV steps
    • 0.4-V to 1.675-V in 5-mV steps
    • 0.8-V to 3.35-V in 10-mV steps
  • Output voltage accuracy ±1%
  • 7-mΩ and 4.5-mΩ internal power MOSFETs
  • Adjustable external compensation
  • Resistor-selectable start-up output voltage
  • Resistor-selectable switching frequency
  • Power-save or forced-PWM operation
  • I2C-compatible interface up to 1-MHz
  • Differential remote sensing
  • Optional stacked operation for increased output current capability
  • Thermal warning and thermal shutdown
  • Precise enable input
  • Active output discharge
  • Optional spread-spectrum clocking
  • Power-good output with a window comparator
  • Available in 2.55-mm × 3.55-mm × 1-mm VQFN package with wettable flanks
  • –40°C to 150°C junction temperature, TJ

The TPS6287x -Q1 is a family of pin-to-pin 6-A, 9-A, 12-A, and 15-A synchronous step-down DC/DC converters with differential remote sensing. For each current rating, there are full-featured device variants with I2C interface and limited-featured device variants without I2C interface. All devices offer high efficiency and ease of use. Low-resistance power switches allow up to 15-A continuous output current at high ambient temperatures.

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 supports fast transients with fixed-frequency operation. Devices can operate in power save mode for maximum efficiency, or forced-PWM mode for the 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 better than ±1% DC voltage accuracy under all operating conditions.

The switching frequency is resistor-selectable through the FSEL pin. The switching frequency can be set to 1.5 MHz, 2.25 MHz, 2.5 MHz, or 3.0 MHz, or synchronized to an external clock in the same frequency range.

The I2C-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 power consumption of the load to the performance needs of the application through the I2C-compatible interface. The default start-up voltage is resistor-selectable through the VSEL pin.

The TPS6287x -Q1 is a family of pin-to-pin 6-A, 9-A, 12-A, and 15-A synchronous step-down DC/DC converters with differential remote sensing. For each current rating, there are full-featured device variants with I2C interface and limited-featured device variants without I2C interface. All devices offer high efficiency and ease of use. Low-resistance power switches allow up to 15-A continuous output current at high ambient temperatures.

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 supports fast transients with fixed-frequency operation. Devices can operate in power save mode for maximum efficiency, or forced-PWM mode for the 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 better than ±1% DC voltage accuracy under all operating conditions.

The switching frequency is resistor-selectable through the FSEL pin. The switching frequency can be set to 1.5 MHz, 2.25 MHz, 2.5 MHz, or 3.0 MHz, or synchronized to an external clock in the same frequency range.

The I2C-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 power consumption of the load to the performance needs of the application through the I2C-compatible interface. The default start-up voltage is resistor-selectable through the VSEL pin.
open-in-new Find other Buck converters (integrated switch)
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare products
Pin-for-pin with same functionality to the compared device.
NEW TPS62872-Q1 ACTIVE Automotive 2.7-V to 6-V input, 12-A, stackable, synchronous buck converter

Higher current option, provides flexiblity to increase current based on application need without changing the layout.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 10
Type Title Date
* Data sheet TPS6287x-Q1 2.7-V to 6-V Input, 6-A, 9-A, 12-A, 15-A, Stackable, Synchronous Step-Down Converters with Fast Transient Response datasheet (Rev. B) PDF | HTML 17 Jan 2023
More literature Using the Filters with the DC/DC Step-Down Converter PDF | HTML 02 Feb 2023
More literature Operating TPS6287X-Q1 Devices in a Stacked Configuration PDF | HTML 30 Jan 2023
More literature Adjusting the Output Voltage of a Fixed Output Voltage DC-DC Converter PDF | HTML 22 Dec 2022
More literature Mobileye EyeQ6L – Semi Discrete Power Tree PDF | HTML 05 Aug 2022
More literature Benefiting from Step-Down Converters with an I²C Communication Interface (Rev. A) PDF | HTML 04 May 2022
Functional safety information TPS62871-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 04 May 2022
More literature How to Measure Impedance of a Power Distribution Network of a DC-DC Converter PDF | HTML 20 Jan 2022
More literature Loop Gain Reconstruction of a Step-Down Converter from Output Impedance PDF | HTML 20 Jan 2022
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

Design & development

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

Evaluation board

TPS62873EVM-143 — TPS62873-Q1 evaluation module 2.7-V to 6-V input, step-down converter

The TPS62873EVM-143 evaluation module (EVM) is designed to evaluate and test the operation and functionality of the TPS62873-Q1 buck converter. It also can be used to evaluate TPS62870-Q1, TPS62871-Q1 and TPS62872-Q1 devices. The EVM converts a 2.7-V to 6.0-V input voltage to a regulated 0.75-V (...)

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

TPS62873EVM-144 — TPS62873-Q1 30-A step-down converter evaluation module

The TPS62873EVM-144 evaluation module (EVM) is a high-frequency, synchronous step-down converter optimized for a small solution size and high efficiency. The EVM is designed to help the user easily evaluate and test the operation and functionality of a stacked configuration of two TPS62873 buck (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS62872-Q1 PSpice Unencrypted Average Model

SLVMDQ1.ZIP (133 KB) - PSpice Model
Download
Simulation model

TPS62872-Q1 SIMPLIS Unencrypted Transient and Average Model

SLVMDN7.ZIP (557 KB) - SIMPLIS Model
Download
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 (...)
Request
Package Pins Download
VQFN-FCRLF (RXS) 16 View options

Ordering & quality

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

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos