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

TPS628502-Q1

ACTIVE

Product details

Vin (Min) (V) 2.7 Vin (Max) (V) 6 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 2 Iq (Typ) (uA) 17 Switching frequency (Min) (kHz) 1800 Switching frequency (Max) (kHz) 4000 Features Enable, Fixed Output, Forced PWM, Frequency Synchronization, Light Load Efficiency, Output Discharge, Power Good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed, Wettable Flanks Package Operating temperature range (C) -40 to 125 Rating Automotive Regulated outputs (#) 1
Vin (Min) (V) 2.7 Vin (Max) (V) 6 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 2 Iq (Typ) (uA) 17 Switching frequency (Min) (kHz) 1800 Switching frequency (Max) (kHz) 4000 Features Enable, Fixed Output, Forced PWM, Frequency Synchronization, Light Load Efficiency, Output Discharge, Power Good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed, Wettable Flanks Package Operating temperature range (C) -40 to 125 Rating Automotive Regulated outputs (#) 1
SOT-5X3 (DRL) 8 SOT-5X3 (DRL) 8 3 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
  • TJ = –40°C to +150°C
  • Family of 1-A and 2-A (continuous) and 3-A (peak) converters
  • Input voltage range: 2.7 V to 6 V
  • Quiescent current: 17 µA typical
  • Output voltage from 0.6 V to 5.5 V
  • Output voltage accuracy ±1% (PWM operation)
  • Forced PWM or PWM/PFM operation
  • Adjustable switching frequency of 1.8 MHz to 4 MHz
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Spread spectrum clocking – optional
  • 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
  • TJ = –40°C to +150°C
  • Family of 1-A and 2-A (continuous) and 3-A (peak) converters
  • Input voltage range: 2.7 V to 6 V
  • Quiescent current: 17 µA typical
  • Output voltage from 0.6 V to 5.5 V
  • Output voltage accuracy ±1% (PWM operation)
  • Forced PWM or PWM/PFM operation
  • Adjustable switching frequency of 1.8 MHz to 4 MHz
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Spread spectrum clocking – optional
  • Foldback overcurrent protection – optional
  • Power-good output with window comparator

The TPS62850x-Q1 is a family of pin-to-pin 1-A, 2-A (continuous), and 3-A (peak) high efficiency, easy-to-use synchronous step-down DC/DC converters. They are based on a peak current mode control topology. They are designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 2-A continuous output current and 3-A peak current. In the TPS62850x-Q1, the switching frequency is externally adjustable from 1.8 MHz to 4 MHz. The parts 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 a SOT583 package.

The TPS62850x-Q1 is a family of pin-to-pin 1-A, 2-A (continuous), and 3-A (peak) high efficiency, easy-to-use synchronous step-down DC/DC converters. They are based on a peak current mode control topology. They are designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 2-A continuous output current and 3-A peak current. In the TPS62850x-Q1, the switching frequency is externally adjustable from 1.8 MHz to 4 MHz. The parts 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 a SOT583 package.

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Technical documentation

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Type Title Date
* Data sheet TPS62850x-Q1 2.7-V to 6-V, 1-A / 2-A / 3-A Automotive Step-Down Converter in SOT583 Package datasheet (Rev. C) 11 Oct 2021
Application note Improving Efficiency at Higher Loads with High Switching Frequencies 16 Jun 2021
Technical article Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy levels 18 Nov 2020
Functional safety information TPS62850x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 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
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

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Evaluation board

TPS628502EVM-092 — 2.7 -V to 6-V, 2-A automotive step-down converter in SOT583 package evaluation module

The TPS628502EVM-092 evaluation module is designed to evaluate the TPS6285X-Q1 devices. The TPS6285X-Q1 devices are high-frequency, synchronous, step-down converters optimized for a small solution size and high-efficiency. The devices focus on high-efficiency, step-down conversion over a wide output (...)

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Simulation model

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

SLUM765A.ZIP (649 KB) - SIMPLIS Model
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