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TPS628502-Q1

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

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

TPS628502-Q1

ACTIVE

Product details

Parameters

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 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

SOT-5X3 (DRL) 8 3 mm² 2.1 x 1.2 SOT-5X3 (DRL) 8 open-in-new Find other Buck converters (integrated switch)

Features

  • 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
  • Input voltage range: 2.7 V to 6 V
  • Quiescent current 15 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

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Description

The TPS62850x-Q1 is a family of pin-to-pin 1-A and 2-A 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 at high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PWM/PFM mode, the TPS62850x-Q1 automatically enter Power Save Mode at light loads to maintain high efficiency across the whole load range. The TPS62850x-Q1 provide a 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy.

The TPS62850x-Q1 is available in a SOT583 package.

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Technical documentation

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Type Title Date
* Datasheet TPS62850x-Q1 2.7-V to 6-V, 1-A / 2-A Automotive Step-Down Converter in SOT583 Package datasheet (Rev. B) Nov. 13, 2020
Technical article Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy levels Nov. 18, 2020
Functional safety information TPS62850x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Oct. 14, 2020
User guide TPS628502EVM-092 User's Guide Jan. 22, 2020
Application note Synchronizing DC/DC Converters in a Power Tree Jan. 16, 2020
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description

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 (...)

Features
  • 2.7-V to 6-V input voltage range
  • Output voltage accuracy +/- 1%
  • 2-A output current
  • 15-uA typical quiescent current
  • Active output discharge

Design tools & simulation

SIMULATION MODEL Download
SLUM731.ZIP (92 KB) - PSpice Model
SIMULATION MODEL Download
SLUM734.ZIP (105 KB) - PSpice Model
SIMULATION MODEL Download
SLUM765A.ZIP (649 KB) - SIMPLIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
SOT-5X3 (DRL) 8 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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