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TPS62811-EP

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Enhanced product 6V, 1A adjustable-frequency step-down DC/DC converter

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Data sheet

TPS62811-EP

ACTIVE
Data sheet Order now

Product details

Rating HiRel Enhanced Product Operating temperature range (°C) -55 to 150 TI functional safety category Functional Safety-Capable Type Converter Iout (max) (A) 1 Vin (min) (V) 2.75 Vin (max) (V) 6 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, Spread Spectrum, Synchronous Rectification, Tracking, UVLO adjustable, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
Rating HiRel Enhanced Product Operating temperature range (°C) -55 to 150 TI functional safety category Functional Safety-Capable Type Converter Iout (max) (A) 1 Vin (min) (V) 2.75 Vin (max) (V) 6 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, Spread Spectrum, Synchronous Rectification, Tracking, UVLO adjustable, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
VQFN-HR (RWY) 9 6 mm² 3 x 2
  • Input voltage range: 2.75V to 6V
  • Family of 1A, 2A, 3A, and 4A converters
  • Quiescent current: 15µA typical
  • Output voltage from 0.6V to 5.5V
  • Output voltage accuracy ±1% (FPWM operation)
  • Adjustable soft start
  • Forced PWM or PWM and PFM operation
  • Adjustable switching frequency of 1.8MHz to 4MHz
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Power-good output with window comparator
  • Input voltage range: 2.75V to 6V
  • Family of 1A, 2A, 3A, and 4A converters
  • Quiescent current: 15µA typical
  • Output voltage from 0.6V to 5.5V
  • Output voltage accuracy ±1% (FPWM operation)
  • Adjustable soft start
  • Forced PWM or PWM and PFM operation
  • Adjustable switching frequency of 1.8MHz to 4MHz
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Power-good output with window comparator

The TPS6281x-EP is family of pin-to-pin, 1A, 2A, 3A, and 4A synchronous step-down DC/DC converters. All devices offer high efficiency and ease of use. The family of devices is based on a peak current mode control topology. Low-resistive switches allow up to 4A continuous output current at high ambient temperature. The switching frequency is externally adjustable from 1.8MHz to 4MHz and can also be synchronized to an external clock in the same frequency range. The device can automatically enter power save mode (PSM) at light loads to maintain high efficiency across the whole load range. The device provides 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows the user to set the start-up time or form tracking of the output voltage to an external source, allowing external sequencing of different supply rails and limiting the inrush current during start-up.

The TPS6281x-EP device is available in a 2mm × 3mm, VQFN package.

The TPS6281x-EP is family of pin-to-pin, 1A, 2A, 3A, and 4A synchronous step-down DC/DC converters. All devices offer high efficiency and ease of use. The family of devices is based on a peak current mode control topology. Low-resistive switches allow up to 4A continuous output current at high ambient temperature. The switching frequency is externally adjustable from 1.8MHz to 4MHz and can also be synchronized to an external clock in the same frequency range. The device can automatically enter power save mode (PSM) at light loads to maintain high efficiency across the whole load range. The device provides 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows the user to set the start-up time or form tracking of the output voltage to an external source, allowing external sequencing of different supply rails and limiting the inrush current during start-up.

The TPS6281x-EP device is available in a 2mm × 3mm, VQFN package.
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Technical documentation

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* Data sheet TPS6281x-EP Enhanced Product, 6V, 1A, 2A, 3A, and 4A Step-Down DC/DC Converter Family With Adjustable Frequency datasheet PDF | HTML 02 Oct 2024
* Radiation & reliability report TPS6281x-EP Enhanced Product Qualification and Reliability Report PDF | HTML 30 Sep 2024

Design & development

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Evaluation board

TPS62810EVM-015 — Buck Converter Evaluation Module

The TPS62810EVM-015 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPS6281X-Q1 automotive step-down converter family. The EVM converts a 2.7-V to 6.0-V input voltage to a regulated 1.8-V output voltage that delivers up to 4 A.

User guide: PDF | HTML
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VQFN-HR (RWY) 9 Ultra Librarian
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