Calculation tool
SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC
Calculator tool to adjust the power supply's output voltage with an analog input voltage
TPS62810M
2.75-V to 6-V, 4-A step-down converter in a 2-mm x 3-mm QFN package with -55C extended temperature
Data sheet
TPS62810M
- Functional Safety-Capable
- Extended junction temperature from –55°C to +150°C
- Input voltage range: 2.75 V to 6 V
- Family of 1-A, 2-A, 3-A, and 4-A converters
- Quiescent current: 15 µA typical
- Output voltage from 0.6 V to 5.5 V
- Output voltage accuracy ±1% (FPWM operation)
- Adjustable soft start
- Start-up at –55°C
- 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 TPS6281xM 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 family of devices is based on a peak current mode control topology. 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. 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 TPS6281xM device is available in a 2-mm × 3-mm VQFN package with wettable flanks.
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Technical documentation
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View all 10 | Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TPS6281xM, Extended Temperature, 2.75-V to 6-V Adjustable-Frequency Step-Down DC/DC Converter datasheet | PDF | HTML | 09 Mar 2021 |
| Selection guide | Buck Converter Quick Reference Guide (Rev. B) | 08 Apr 2021 | ||
| Functional safety information | TPS6281xM Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 18 Jan 2021 | |
| Functional safety information | 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 brief | Powering VCCINT_VCU Rail in Xilinx® Zynq®UltraScale+™ Family of Multiprocessors | PDF | HTML | 08 Jun 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 | ||
| 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.
Simulation model
TPS62810-Q1 SIMPLIS Transient and Average Model
SLVMD82.ZIP (483 KB) - SIMPLIS Model
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 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 for 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 (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN-HR (RWY) | 9 | Ultra Librarian |
Ordering & quality
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