Startseite Energiemanagement AC/DC- und DC/DC-Wandler (integrierter FET)

TPS543320

AKTIV

Synchroner SWIFT™-Abwärtswandler, 4 bis 18 V, 3 A

Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4 Vin (max) (V) 18 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2200 Features Adjustable current limit, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable EMI features Low parasitic Hotrod packaging Control mode ACM/AECM Vout (min) (V) 0.5 Vout (max) (V) 7 Iq (typ) (µA) 1200 Duty cycle (max) (%) 94
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4 Vin (max) (V) 18 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2200 Features Adjustable current limit, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable EMI features Low parasitic Hotrod packaging Control mode ACM/AECM Vout (min) (V) 0.5 Vout (max) (V) 7 Iq (typ) (µA) 1200 Duty cycle (max) (%) 94
VQFN-HR (RPY) 14 7.5 mm² 2.5 x 3
  • Fixed-frequency, internally-compensated advanced current mode (ACM) control
  • Integrated 25-mΩ and 13.9-mΩ MOSFETs
  • Input voltage range: 4 V to 18 V
  • Output voltage range: 0.5 V to 7 V
  • Three selectable PWM ramp options to optimize the control loop performance
  • Five selectable switching frequencies: 500 kHz, 750 kHz, 1 MHz, 1.5 MHz, and 2.2 MHz
  • Synchronizable to an external clock
  • 0.5-V, ±0.5% voltage reference accuracy over full temperature range
  • Selectable soft-start times: 0.5 ms, 1 ms, 2 ms, and 4 ms
  • Monotonic start-up into pre-biased outputs
  • Selectable current limits to support 3-A and 2-A operation
  • Enable with adjustable input undervoltage lockout
  • Power-good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • Pin-to-pin compatible with TPS543820 and TPS543620
  • –40°C to 150°C operating junction temperature
  • 2.5-mm × 3-mm, 14-pin VQFN-HR package with 0.5-mm pitch
  • Fixed-frequency, internally-compensated advanced current mode (ACM) control
  • Integrated 25-mΩ and 13.9-mΩ MOSFETs
  • Input voltage range: 4 V to 18 V
  • Output voltage range: 0.5 V to 7 V
  • Three selectable PWM ramp options to optimize the control loop performance
  • Five selectable switching frequencies: 500 kHz, 750 kHz, 1 MHz, 1.5 MHz, and 2.2 MHz
  • Synchronizable to an external clock
  • 0.5-V, ±0.5% voltage reference accuracy over full temperature range
  • Selectable soft-start times: 0.5 ms, 1 ms, 2 ms, and 4 ms
  • Monotonic start-up into pre-biased outputs
  • Selectable current limits to support 3-A and 2-A operation
  • Enable with adjustable input undervoltage lockout
  • Power-good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • Pin-to-pin compatible with TPS543820 and TPS543620
  • –40°C to 150°C operating junction temperature
  • 2.5-mm × 3-mm, 14-pin VQFN-HR package with 0.5-mm pitch

The TPS543320 is a high-efficiency 18-V, 3-A synchronous buck converter employing an internally-compensated, fixed-frequency Advanced Current Mode control. The device is capable of providing high efficiency while running at a switching frequency up to 2.2 MHz. The device is in a small 2.5-mm × 3-mm HotRod™ VQFN package, which coupled with high efficiency at high frequency, makes it optimal for designs requiring a small solution size. The fixed frequency controller can operate from 500 kHz to 2.2 MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, selectable soft start times, montonic start-up into pre-biased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.

The TPS543320 is a high-efficiency 18-V, 3-A synchronous buck converter employing an internally-compensated, fixed-frequency Advanced Current Mode control. The device is capable of providing high efficiency while running at a switching frequency up to 2.2 MHz. The device is in a small 2.5-mm × 3-mm HotRod™ VQFN package, which coupled with high efficiency at high frequency, makes it optimal for designs requiring a small solution size. The fixed frequency controller can operate from 500 kHz to 2.2 MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, selectable soft start times, montonic start-up into pre-biased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet TPS543320 4-V to 18-V Input, 3-A Synchronous SWIFT Step-Down Converter with Internally Compensated Advanced Current Mode Control datasheet (Rev. C) PDF | HTML 27 Apr 2023
Application note Synchronization to a Clock Signal Using AC Coupling PDF | HTML 07 Aug 2024
More literature Low-Noise and Low-Ripple Techniques for a Supply Without an LDO (Rev. B) PDF | HTML 18 Apr 2024
Application note Detailed Comparison Between TPSM843620 Family and TPS543620 Family PDF | HTML 20 Nov 2023
Application brief Solving power design challenges in oscilloscope applications PDF | HTML 31 Okt 2023
More literature Low-noise and low-ripple techniques for a supply without an LDO PPT 02 Dez 2021
Application note Point-of-Load Solutions for Network Interface Cards (NIC) PDF | HTML 08 Sep 2021
EVM User's guide TPS543320 SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 06 Mai 2021

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

TPS543320EVM — Evaluierungsmodul für asynchronen SWIFT™-Abwärtswandler, 4 V bis 18 V, 3 A

The TPS543620EVM is an evaluation module (EVM) for the TPS543620. The TPS543620 is a synchronous buck converter, integrating both power MOSFETs with low drain to source resistance to minimize solution size and provide high-efficiency at full load. The TPS543620 uses fixed frequency advanced (...)
Benutzerhandbuch: PDF | HTML
Simulationsmodell

TPS543320 PSpice Transient Model

SLUM788.ZIP (338 KB) - PSpice Model
Simulationsmodell

TPS543320 SIMPLIS Transient and Average Model

SLVMDI6.ZIP (1116 KB) - SIMPLIS Model
Berechnungstool

SLURAZ9 TPS543320 TPS543620 TPS543820 Calculator Tool and Schematic Checklist

Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

Produkte
AC/DC- und DC/DC-Wandler (integrierter FET)
TPS543320 Synchroner SWIFT™-Abwärtswandler, 4 bis 18 V, 3 A TPS543620 Synchroner SWIFT™-Abwärtswandler, 4 bis 18 V Eingangsspannung, 6 A, mit erweitertem Strommodus TPS543820 Synchroner SWIFT™-Abwärtswandler, 4 bis 18 V, 8 A TPS543820E Synchroner Abwärtswandler, 4 bis 18 V, 8 A, erweiterter Temperaturbereich
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
VQFN-HR (RPY) 14 Ultra Librarian

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