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TPS628502-Q1

ACTIVE

2.7-V to 6-V, 2-A automotive step-down converter in SOT583 package

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Data sheet

TPS628502-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 1.8, 3.3, 5.5 Vout (min) (V) 0.6, 1.8, 3.3 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Light load efficiency, Output discharge, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed, UVLO fixed, Wettable flanks package EMI features Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 17 Duty cycle (max) (%) 100 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 1.8, 3.3, 5.5 Vout (min) (V) 0.6, 1.8, 3.3 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Light load efficiency, Output discharge, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed, UVLO fixed, Wettable flanks package EMI features Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 17 Duty cycle (max) (%) 100 Type Converter
SOT-5X3 (DRL) 8 3.36 mm² 2.1 x 1.6 SOT-5X3 (DYC) 8 2.52 mm² 2.1 x 1.2
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C TA
  • Functional Safety-Capable
  • Optimized for low EMI requirements
    • Optional pseudo-random spread spectrum reduces peak emissions
  • TJ = –40°C to +150°C
  • Family of 1A and 2A (continuous) and 3A (peak) converters
  • Input voltage range: 2.7V to 6V
  • Quiescent current: 17µA typical
  • Output voltage from 0.6V to 5.5V
  • Output voltage accuracy ±1% (PWM operation)
  • Forced PWM or PWM/PFM operation
  • Adjustable switching frequency: 1.8MHz to 4MHz
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Foldback overcurrent protection – optional
  • Power-good output with window comparator
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C TA
  • Functional Safety-Capable
  • Optimized for low EMI requirements
    • Optional pseudo-random spread spectrum reduces peak emissions
  • TJ = –40°C to +150°C
  • Family of 1A and 2A (continuous) and 3A (peak) converters
  • Input voltage range: 2.7V to 6V
  • Quiescent current: 17µA typical
  • Output voltage from 0.6V to 5.5V
  • Output voltage accuracy ±1% (PWM operation)
  • Forced PWM or PWM/PFM operation
  • Adjustable switching frequency: 1.8MHz to 4MHz
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Foldback overcurrent protection – optional
  • Power-good output with window comparator

The TPS62850x-Q1 is a family of pin-to-pin 1A, 2A (continuous), and 3A (peak) high efficiency, easy-to-use synchronous step-down DC/DC converters. These devices are based on a peak current mode control topology. These devices are designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 2A continuous output current and 3A peak current. In the TPS62850x-Q1, the switching frequency is externally adjustable from 1.8MHz to 4MHz. The devices can also be synchronized to an external clock in the same frequency range. In PWM/PFM mode, the devices automatically enter power save mode at light loads to maintain high efficiency across the whole load range. The family provides a 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy.

The TPS62850x-Q1 are available in an SOT583 package.

The TPS62850x-Q1 is a family of pin-to-pin 1A, 2A (continuous), and 3A (peak) high efficiency, easy-to-use synchronous step-down DC/DC converters. These devices are based on a peak current mode control topology. These devices are designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 2A continuous output current and 3A peak current. In the TPS62850x-Q1, the switching frequency is externally adjustable from 1.8MHz to 4MHz. The devices can also be synchronized to an external clock in the same frequency range. In PWM/PFM mode, the devices automatically enter power save mode at light loads to maintain high efficiency across the whole load range. The family provides a 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy.

The TPS62850x-Q1 are available in an SOT583 package.
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TPS628502 ACTIVE 2.7-V to 6-V, 2-A, adjustable-frequency, step-down converter in SOT583 package Pin-to-pin solution without AEC-Q100 qualification.
TPS628503-Q1 ACTIVE 2.7-V to 6-V, 3-A automotive step-down converter in SOT583 package Same product family with higher current.

Technical documentation

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Type Title Date
* Data sheet TPS62850x-Q1 2.7V to 6V, 1A, 2A , 3A, Automotive, Step-Down Converters in an SOT583 Package datasheet (Rev. L) PDF | HTML 22 Jul 2025
Application brief Benefits of Using a SOT-583 Package with Extended Leads PDF | HTML 03 May 2023
Application note Using the Filters with the DC/DC Step-Down Converter PDF | HTML 02 Feb 2023
Product overview Mobileye EyeQ6L – Semi Discrete Power Tree PDF | HTML 05 Aug 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
Application note Improving Efficiency at Higher Loads with High Switching Frequencies PDF | HTML 16 Jun 2021
Technical article Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy lev 18 Nov 2020
Functional safety information TPS62850x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 14 Oct 2020
User guide TPS628502EVM-092 User's Guide 22 Jan 2020
Application note Synchronizing DC/DC Converters in a Power Tree 16 Jan 2020

Design & development

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

TPS628502 and TPS628502-Q1 PSpice Transient Model

SLUM734.ZIP (105 KB) - PSpice Model
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Simulation model

TPS628502 and TPS628502-Q1 SIMPLIS Transient and Average Model (Rev. A)

SLUM765A.ZIP (649 KB) - SIMPLIS Model
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Simulation model

TPS6285020M-Q1 PSpice Transient Model

SLUM731.ZIP (92 KB) - PSpice Model
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Package Pins CAD symbols, footprints & 3D models
SOT-5X3 (DRL) 8 Ultra Librarian
SOT-5X3 (DYC) 8 Ultra Librarian
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