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TPS62873

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6-V, 15-A, stackable, synchronous buck converter

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Data sheet

TPS62873

ACTIVE
Data sheet Order now

Product details

Vin (min) (V) 2.7 Vin (max) (V) 6 Vout (min) (V) 0.4 Vout (max) (V) 3.35 Iout (max) (A) 15 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, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode COT with emulated ripple, Constant on-time (COT), DCS-Control, current mode Duty cycle (max) (%) 70 Type Converter
Vin (min) (V) 2.7 Vin (max) (V) 6 Vout (min) (V) 0.4 Vout (max) (V) 3.35 Iout (max) (A) 15 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, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode COT with emulated ripple, Constant on-time (COT), DCS-Control, current mode Duty cycle (max) (%) 70 Type Converter
VQFN-FCRLF (RXS) 16 9.0525 mm² 2.55 x 3.55
  • 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 125°C junction temperature, TJ
  • 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 125°C junction temperature, TJ

The TPS6287x 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 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 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 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.
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Type Title Date
* Data sheet TPS6287x 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 PDF | HTML 03 Jan 2022
More literature AM68x Processor Power Solutions Using LP87334E PMIC for Industrial Applications PDF | HTML 14 Mar 2023
EVM User's guide TPS62873 Dual Buck Converter Evaluation Module (Rev. A) PDF | HTML 04 Nov 2022
User guide TPS62873 Buck Converter Evaluation Module User's Guide PDF | HTML 22 Feb 2022
Certificate TPS62873EVM-143 EU RoHS Declaration of Conformity (DoC) 18 Feb 2022
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

Design & development

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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 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 (...)
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