TPS62810-Q1

VQFN-HR (RWY)

9

6 mm² 3 x 2

VQFN-HR (RWY)

9

—

AEC-Q100 qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Input voltage range: 2.75 V to 6 V
Family of 1 A, 2 A, 3 A and 4 A
Quiescent current 15-µA typical
Output voltage from 0.6 V to 5.5 V
Output voltage accuracy ±1% (PWM operation)
Adjustable soft start
Forced PWM or PWM and 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
Power good output with window comparator
Package with wettable flanks

AEC-Q100 qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Input voltage range: 2.75 V to 6 V
Family of 1 A, 2 A, 3 A and 4 A
Quiescent current 15-µA typical
Output voltage from 0.6 V to 5.5 V
Output voltage accuracy ±1% (PWM operation)
Adjustable soft start
Forced PWM or PWM and 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
Power good output with window comparator
Package with wettable flanks

The TPS6281x-Q1 is family of pin-to-pin 1-A, 2-A, 3-A, and 4-A synchronous step-down DC/DC converters. All devices offer high efficiency and ease of use. The TPS6281x-Q1 family is based on a peak current mode control topology. The TPS6281x-Q1 is designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 4-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 TPS6281x-Q1 automatically enter Power Save Mode at light loads to maintain high efficiency across the whole load range. The TPS6281x-Q1 provide 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or forming tracking of the output voltage to an external source. This allows external sequencing of different supply rails and limiting the inrush current during start-up.

The TPS6281x-Q1 is available in a 3-mm × 2-mm VQFN package with wettable flanks.

The TPS6281x-Q1 is family of pin-to-pin 1-A, 2-A, 3-A, and 4-A synchronous step-down DC/DC converters. All devices offer high efficiency and ease of use. The TPS6281x-Q1 family is based on a peak current mode control topology. The TPS6281x-Q1 is designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 4-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 TPS6281x-Q1 automatically enter Power Save Mode at light loads to maintain high efficiency across the whole load range. The TPS6281x-Q1 provide 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or forming tracking of the output voltage to an external source. This allows external sequencing of different supply rails and limiting the inrush current during start-up.

The TPS6281x-Q1 is available in a 3-mm × 2-mm VQFN package with wettable flanks.

Download

Technical documentation

star

= Top documentation for this product selected by TI

No results found. Please clear your search and try again.

View all 13

	Type	Title	Date
*	Data sheet	TPS6281x-Q1 2.75-V to 6-V Adjustable-Frequency Step-Down Converter datasheet (Rev. H)	13 Apr 2021
	Selection guide	Buck Converter Quick Reference Guide (Rev. B)	08 Apr 2021
	User guide	TPS62810EVM-015 Evaluation Module (Rev. A)	17 Mar 2021
	Functional safety information	TPS6281x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. C)	07 Dec 2020
	White paper	Streamlining Functional Safety Certification in Automotive and Industrial	09 Jun 2020
	White paper	簡化汽車及工業領域的功能安全認證	09 Jun 2020
	White paper	자동차 및 산업 분야의 기능적 안전성 인증 간소화	09 Jun 2020
	Application note	Powering VCCINT_VCU Rail in Xilinx® Zynq®UltraScale+™ Family of Multiprocessors	08 Jun 2020
	Application note	Synchronizing DC/DC Converters in a Power Tree	16 Jan 2020
	White paper	Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies	14 Oct 2019
	Analog design journal	Methods of output-voltage adjustment for DC/DC converters	14 Jun 2019
	Technical article	Minimize the impact of the MLCC shortage on your power application	29 Mar 2019
	Analog design journal	Understanding 100% mode in low-power DC/DC converters	22 Jun 2018

Design & development

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

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

Out of stock on TI.com

alarm

Notify me when available

Simulation model

TPS62810-Q1 PSpice Transient Model (Rev. B)

SLVMCS5B.ZIP (126 KB) - PSpice Model

Download

Simulation model

TPS62810-Q1 SIMPLIS Transient and Average Model

SLVMD82.ZIP (483 KB) - SIMPLIS Model

Download

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 (...)

Request

Gerber file

Design Tool for Output Voltage Adjustment using a DAC

SLVC780.ZIP (138 KB)

Download

Reference designs

TIDEP-01022 — Gateway automotive reference design

Automotive trends are rapidly evolving, and as a result, new domain- and zonal-based gateway architectures are being used to efficiently handle the ever-increasing amount of data coming into and moving throughout the vehicle, and getting sent to the cloud. A properly functioning domain (or zonal) (...)

Reference designs

PMP21939 — Four-output synchronous buck reference design for automotive telematics control units

This reference design uses an LM63635-Q1 synchronous buck converter to output either a 3.3-V or 5-V rail. The bus converter switches at 2.1 MHz, and the load converters (TPS62810-Q1) switch at 2.2 MHz. The system is designed for telematics control unit power. Easily configurable jumpers allow (...)

Reference designs

PMP30670 — Automotive wide VIN front-end reference design for digital cockpit processing units

This reference design shows a complete power tree for automotive digital cockpit applications. The LM74700-Q1 provides low-loss reverse polarity protection to the system, followed by an input filter. The LM5143-Q1 dual-synchronous buck converter provides a 3.3-V rail, which can support up to 15 A (...)

Reference designs

PMP21669 — Automotive instrument cluster power reference design with three outputs

This reference design implements an automotive power supply solution for use in analog gauge clusters, hybrid clusters and cluster display systems. It provides 5 volt, 3.3 volt and 1.2 volt outputs suitable for powering all subsystems within an automotive instrument cluster, a cluster display, or (...)