首頁 電源管理 AC/DC & DC/DC converters (integrated FET)
首頁
電源管理
AC/DC & DC/DC converters (integrated FET)

TPS54540-Q1

不推薦在新設計中採用

具整合式高側 MOSFET 的 42V、5A 降壓穩壓器

立即訂購
產品規格表
TPS54540-Q1 不建議用於新設計
儘管為了支援以前的設計而繼續生產此項產品，但我們並不建議用在新設計上。考量下列其中一項替代產品：
open-in-new 比較替代產品
具備升級功能，可直接投入使用替代所比較的產品
TPS54540B-Q1 現行 具 Eco-Mode™ 的 4.5-V 至 42-V 輸入、5-A、降壓 DC-DC 轉換器 Pin-compatible with the TPS54540-Q1.

TPS54540-Q1

不推薦在新設計中採用
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 42 Type Converter Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 41.1 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000146
Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 42 Type Converter Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 41.1 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000146
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H1C
    • Device CDM ESD Classification Level C3B
  • High-Efficiency at Light Loads With Pulse-
    Skipping Eco-mode™
  • 92-mΩ High-Side MOSFET
  • 146-µA Operating Quiescent Current and 2-µA
    Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching
    Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads With Integrated
    BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V 1% Internal Voltage Reference
  • 8-Pin HSOP PowerPAD™ Package
  • –40°C to 150°C TJ Operating Range
  • Supported by WEBENCH® Software Tool
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H1C
    • Device CDM ESD Classification Level C3B
  • High-Efficiency at Light Loads With Pulse-
    Skipping Eco-mode™
  • 92-mΩ High-Side MOSFET
  • 146-µA Operating Quiescent Current and 2-µA
    Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching
    Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads With Integrated
    BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V 1% Internal Voltage Reference
  • 8-Pin HSOP PowerPAD™ Package
  • –40°C to 150°C TJ Operating Range
  • Supported by WEBENCH® Software Tool

The TPS54540-Q1 device is a 42-V, 5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 65 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load supply current to 146 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide adjustable frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protect internal and external components during an overload condition.

The TPS54540-Q1 is available in an 8-pin thermally-enhanced HSOP PowerPAD package.

The TPS54540-Q1 device is a 42-V, 5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 65 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load supply current to 146 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide adjustable frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protect internal and external components during an overload condition.

The TPS54540-Q1 is available in an 8-pin thermally-enhanced HSOP PowerPAD package.
open-in-new 尋找其它 AC/DC & DC/DC converters (integrated FET)
下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 4
類型 標題 日期
* Data sheet TPS54540-Q1 4.5-V to 42-V Input, 5-A, Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. B) PDF | HTML 2015年 11月 25日
Selection guide Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. B) 2021年 4月 15日
Application note NRND & Differences TPS54340/360/540/560 and TPS54340B/360B/540B/560B 2019年 4月 5日
EVM User's guide Evaluation Module for the TPS54540-Q1 Step-Down Converter 2013年 9月 24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

TPS54540-Q1EVM-593 — TPS54540-Q1EVM-593 7V 至 42V 輸入、通過車規認證的降壓轉換器

The TPS54540-Q1EVM-593 is a fully assembled and tested circuit for evaluating the automotive qualified TPS54540-Q1 step-down converter. The TPS54540-Q1EVM-593 operates from a 7V to 42V input (12V nominal) and provides a 5V output at 5A. Additional input filtering is used for reducing conducted (...)

使用指南: PDF
TI.com 無法提供
模擬型號

TPS54540 Unencrypted PSpice Average Model

SLVMCT9.ZIP (1 KB) - PSpice Model
下載
模擬型號

TPS54540 Unencrypted PSpice Average Model Package (Rev. A)

SLVMA28A.ZIP (205 KB) - PSpice Model
下載
模擬型號

TPS54540 Unencrypted PSpice Transient Model

SLVMCT8.ZIP (6 KB) - PSpice Model
下載
模擬型號

TPS54540 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM871A.ZIP (125 KB) - PSpice Model
下載
參考設計

TIDA-01179 — 具有冷起動運作和瞬態保護功能的車用寬輸入電壓前端電源參考設計

The TIDA-01179 reference design is an automotive front-end power supply that is able to supply 30W maximum output for the 12V car battery. The first stage is a buck-boost DC/DC converter that maintains a stable 15V output voltage over the full DC range of the 12V battery conditions specified in ISO (...)
Design guide: PDF
電路圖: PDF
參考設計

PMP8726 — 針對大負載步進最佳化的寬輸入電壓降壓轉換器解決方案

This design is a non-synchronous buck converter with an input voltage range of 16 to 42V providing 14V output at 5A. It is optimized for large load steps. The IC has a Q-grade option for automotive applications.
Test report: PDF
電路圖: PDF
封裝 引腳 下載
HSOIC (DDA) 8 檢視選項
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 資格摘要
  • 進行中可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片