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TPS54821RHLT AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

TPS54821RHLT product

TPS54821RHLT

Voltage Regulators - DC DC Switching Regulators

synchronous buck8 A17 VVQFNadjustable frequencypower goodsoft start

TPS54821RHLT is an 8 A synchronous buck regulator for converting a 4.5 V to 17 V control input rail, with PVIN operation down to 1.6 V in split-rail designs.

Best for

  • High-current point-of-load buck supplies
  • Consumer and digital entertainment power rails
  • Split VIN and PVIN rail designs

Avoid if

  • Input voltage exceeds 17 V during normal operation
  • A package with through-hole leads is required
  • The PCB cannot provide sufficient exposed-pad thermal dissipation

Check before use

  • Verify output voltage range against minimum on-time limitations
  • Use a 0.1 µF bootstrap capacitor between BOOT and PH
  • Validate compensation and transient response with selected output capacitors
  • Confirm inductor saturation current under fault and transient conditions

Key specifications

Input voltage
4.5 V to 17 V VIN; 1.6 V to 17 V PVIN
Output current
8 A continuous
Switching frequency
200 kHz to 1.6 MHz
Package
14-pin VQFN RHL

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level-1-260C-UNLIM
ECCN
-
HTSUS
-

Application

Point-of-load powerConsumer electronicsDigital TV and set-top boxes

Datasheet

Texas-Instruments-company-64.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for TPS54821RHLT: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

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Alternative components

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Design and risk insights

Questions & answers

TPS54821RHLT is a Texas Instruments fixed-frequency, peak-current-mode synchronous buck converter. It integrates high-side and low-side MOSFETs and is specified for continuous output currents up to 8 A.