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AC/DC & DC/DC converters (integrated FET)

TPS54418

現行

2.95V 至 6V 輸入、4A 同步降壓 SWIFT™ 轉換器

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TPS62865 現行 採用 1.5-mm x 2.5-mm QFN 封裝的 2.4-V 至 5.5-V 輸入、4-A 同步降壓轉換器 Next generation of 4-A PoL buck.

TPS54418

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 4 Vin (min) (V) 2.95 Vin (max) (V) 6 Topology Buck Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2000 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00035
Iout (max) (A) 4 Vin (min) (V) 2.95 Vin (max) (V) 6 Topology Buck Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2000 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00035
WQFN (RTE) 16 9 mm² 3 x 3
  • Two, 30-mΩ (typical) MOSFETs for High-Efficiency at 4-A loads
  • Switching Frequency: 200 kHz to 2 MHz
  • Voltage Reference Over Temperature: 0.8 V ± 1%
  • Synchronizes to External Clock
  • Adjustable Soft Start/Sequencing
  • UV and OV Power-Good Output
  • Low Operating and Shutdown Quiescent Current
  • Safe Start-Up into Prebiased Output
  • Cycle-by-Cycle Current Limit, Thermal and Frequency Foldback Protection
  • Operating Junction Temperature Range: –40°C to 150°C
  • Thermally Enhanced 3 mm × 3 mm 16-pin WQFN Package
  • Create a Custom Design Using the TPS54418 With the WEBENCH® Power Designer
  • Two, 30-mΩ (typical) MOSFETs for High-Efficiency at 4-A loads
  • Switching Frequency: 200 kHz to 2 MHz
  • Voltage Reference Over Temperature: 0.8 V ± 1%
  • Synchronizes to External Clock
  • Adjustable Soft Start/Sequencing
  • UV and OV Power-Good Output
  • Low Operating and Shutdown Quiescent Current
  • Safe Start-Up into Prebiased Output
  • Cycle-by-Cycle Current Limit, Thermal and Frequency Foldback Protection
  • Operating Junction Temperature Range: –40°C to 150°C
  • Thermally Enhanced 3 mm × 3 mm 16-pin WQFN Package
  • Create a Custom Design Using the TPS54418 With the WEBENCH® Power Designer

TheTPS54418 device is a full-featured, 6-V, 4-A, synchronous, step-down current-mode converter with two integrated MOSFETs.

The TPS54418 device enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the device footprint with a small, 3 mm x 3 mm, thermally enhanced, QFN package.

The TPS54418 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.

Efficiency is maximized through the integrated 30-mΩ MOSFETs and a 350-µA typical supply current. Using the EN pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Undervoltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the soft-start pin. An open-drain power-good signal indicates the output is within 93% to 107% of its nominal voltage. Frequency foldback and thermal shutdown protects the device during an overcurrent condition.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.

TheTPS54418 device is a full-featured, 6-V, 4-A, synchronous, step-down current-mode converter with two integrated MOSFETs.

The TPS54418 device enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the device footprint with a small, 3 mm x 3 mm, thermally enhanced, QFN package.

The TPS54418 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.

Efficiency is maximized through the integrated 30-mΩ MOSFETs and a 350-µA typical supply current. Using the EN pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Undervoltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the soft-start pin. An open-drain power-good signal indicates the output is within 93% to 107% of its nominal voltage. Frequency foldback and thermal shutdown protects the device during an overcurrent condition.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.

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類型 標題 日期
* Data sheet TPS54418 2.95-V to 6-V Input, 4-A Output, 2-MHz, Synchronous Step-Down SWIFT™ Converter datasheet (Rev. E) PDF | HTML 2018年 4月 6日
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024年 3月 25日
Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 2021年 7月 26日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
Application note Calculating Efficiency (Rev. A) 2020年 3月 6日
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 2018年 8月 24日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note Not All Jitter Is Created Equal (Rev. A) 2015年 7月 4日
Application note Understanding Thermal Dissipation and Design of a Heatsink 2011年 5月 4日
Application note Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) 2010年 9月 15日
EVM User's guide TPS54418EVM-375 4-A, SWIFT™ Regulator Evaluation 2009年 5月 19日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS54418EVM-375 — TPS54418 3.3V 輸入、1.8V 輸出、4A SWIFT™ 評估模組

The TPS54418EVM-375 evaluation module is designed to demonstrate the small printed-circuit-board areas that may be achieved when designing with the TPS54418 regulator. The TPS54418 dc/dc converter is designed to provide up to a 4A output from an input voltage source of2.95V to 6V. Rated input (...)
使用指南: PDF
TI.com 無法提供
模擬型號

TPS54418 TINA-TI Average Reference Design

SLVM588.TSC (239 KB) - TINA-TI Reference Design
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模擬型號

TPS54418 TINA-TI Average Spice Model (Rev. A)

SLVM587A.ZIP (7 KB) - TINA-TI Spice Model
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模擬型號

TPS54418 Unencrypted PSpice Average Model Package (Rev. A)

SLVM584A.ZIP (22 KB) - PSpice Model
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模擬型號

TPS54418 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM036B.ZIP (44 KB) - PSpice Model
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計算工具

TPS54620DESIGN-CALC — TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator

The Design Calculator Plus Application Note (SLVA352A) Calculator Tool calculates the critical external component values for the TPS54620/TPS54622/TPS54521/TPS54320/TPS54618/TPS54418/TPS54318/TPS54218/TPS54319. The calculator includes power stage design, feature design and Type II and Type III (...)
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產品
AC/DC & DC/DC converters (integrated FET)
TPS54218 — 2.95V 至 6V 輸入、2A 同步降壓 SWIFT™ 轉換器 TPS54318 — 2.95V 至 6V 輸入、3A 同步降壓 SWIFT™ 轉換器 TPS54319 — 採用 3 mm x 3 mm QFN 封裝的 2.95 V 至 6 V 輸入、3 A、2 MHz SWIFT™ 同步降壓轉換器 TPS54320 — 4.5V 至 17V 輸入、3A 同步降壓 SWIFT™ 轉換器 TPS54418 — 2.95V 至 6V 輸入、4A 同步降壓 SWIFT™ 轉換器 TPS54521 — 17V 輸入、5A 同步降壓轉換器 TPS54618 — 2.95V 至 6V 輸入、6A 同步降壓 SWIFT™ 轉換器 TPS54620 — 4.5-V 至 17-V、6-A 同步 SWIFT™ 降壓轉換器 TPS54622 — 具 hiccup 電流限制的 4.5V 至 17-V、6-A 同步 SWIFT™ 降壓轉換器 TPS54821 — 具 Hiccup 電流限制的 4.5V 至 17V、8A 同步降壓轉換器 TPS56921 — 具 VID 控制的 4.5-V 至 17-V、9-A 同步降壓轉換器
硬體開發
開發板
TPS54418EVM-375 — TPS54418 3.3V 輸入、1.8V 輸出、4A SWIFT™ 評估模組 TPS54620EVM-374 — TPS54620、8V 至 17V、6A SWIFT™ 轉換器評估模組
軟體
計算工具
TPS54620DESIGN-CALC — TPS54620 & TPS54XXX 電流型降壓轉換器設計導入計算機
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