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)

TPS54495

現行

4.5V 至 18V 輸入、雙 4A/2A 輸出、同步降壓轉換器

立即訂購
產品規格表

TPS54495

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 4 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.75 Vout (max) (V) 7 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0012
Iout (max) (A) 4 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.75 Vout (max) (V) 7 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0012
HTSSOP (PWP) 16 32 mm² 5 x 6.4 VQFN (RSA) 16 16 mm² 4 x 4
  • D-CAP2 Control Mode
    • Fast Transient Response
    • No External Parts Required For Loop
      Compensation
    • Compatible with Ceramic Output
      Capacitors
  • Wide Input Voltage Range : 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 7 V
  • Highly Efficient Integrated FETs Optimized
    for Low Duty Cycle Applications
    • 90 mΩ (High Side) and 60 mΩ
      (Low Side)
  • High Initial Reference Accuracy
  • Supports Constant 4 A CH1 and 2 A CH2 Load
    Current
  • Low-Side rDS(on) Loss-Less Current
    Sensing
  • Adjustable Soft Start
  • Non-Sinking Pre-Biased Soft Start
  • 700 kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Limit Control
  • OCL/UVLO/TSD Protections
  • Hiccup Timer for Overload Protection
  • Adaptive Gate Drivers with Integrated
    Boost PMOS Switch
  • OCP Constant Due To Thermally Compensated
    rDS(on) with 4000ppm/°C
  • 16-Pin HTSSOP, 16-Pin VQFN
  • Auto-Skip Eco-mode　for High Efficiency at Light Load
  • D-CAP2 Control Mode
    • Fast Transient Response
    • No External Parts Required For Loop
      Compensation
    • Compatible with Ceramic Output
      Capacitors
  • Wide Input Voltage Range : 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 7 V
  • Highly Efficient Integrated FETs Optimized
    for Low Duty Cycle Applications
    • 90 mΩ (High Side) and 60 mΩ
      (Low Side)
  • High Initial Reference Accuracy
  • Supports Constant 4 A CH1 and 2 A CH2 Load
    Current
  • Low-Side rDS(on) Loss-Less Current
    Sensing
  • Adjustable Soft Start
  • Non-Sinking Pre-Biased Soft Start
  • 700 kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Limit Control
  • OCL/UVLO/TSD Protections
  • Hiccup Timer for Overload Protection
  • Adaptive Gate Drivers with Integrated
    Boost PMOS Switch
  • OCP Constant Due To Thermally Compensated
    rDS(on) with 4000ppm/°C
  • 16-Pin HTSSOP, 16-Pin VQFN
  • Auto-Skip Eco-mode　for High Efficiency at Light Load

The TPS54495 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54495 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54495 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54495 to maintain high efficiency during lighter load conditions. The TPS54495 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.

The TPS54495 is available in a 4.4 mm × 5 mm 16-pin TSSOP (PWP) package and 4 mm x 4 mm 16-pin VQFN (RSA), and is designed to operate for an ambient temperature range from –40°C to 85°C.

The TPS54495 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54495 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54495 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54495 to maintain high efficiency during lighter load conditions. The TPS54495 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.

The TPS54495 is available in a 4.4 mm × 5 mm 16-pin TSSOP (PWP) package and 4 mm x 4 mm 16-pin VQFN (RSA), and is designed to operate for an ambient temperature range from –40°C to 85°C.
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

您可能會感興趣的類似產品

open-in-new 比較替代產品
引腳對引腳的功能與所比較的產品相同
TPS54395 現行 4.5V 至 18V 輸入、雙 3A 輸出、同步降壓轉換器 This is a dual-channel 3-A / 3-A output product.
功能相似於所比較的產品
TPS54494 現行 具整合式 FET 的 4A 雙通道同步降壓交換器 This is a dual-channel 2-A / 4-A output product with power-good function.
TPS564242 現行 採用 SOT-563 封裝的 3-V 至 16-V 輸入電壓、4-A ECO 模式、同步降壓轉換器 This product has a smaller package with 1.2MHz switching frequency
最新 TPS564252 現行 3-V 至 17-V 輸入電壓、4-A ECO 模式同步降壓轉換器 This product has smaller package and power good feature

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 3
類型 標題 日期
* Data sheet 4A/2A Dual Channel Synchronous Step-Down Switcher with Integrated FET, TPS54495 datasheet (Rev. A) 2013年 5月 29日
EVM User's guide TPS54495 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 8月 30日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25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)。

模擬型號

TPS54495 PSpice Transient Model

SLVM631.ZIP (94 KB) - PSpice Model
下載
參考設計

TIDA-00304 — 斷電保持儲能解決方案

This solution stores and delivers "last gasp" energy for systems, such as SSDs, that require functionality for a short time after power loss in order to shut down in a controlled fashion. By storing holdup energy at higher than bus voltage the amount of capacitance can be reduced by up to 80%, (...)
Design guide: PDF
電路圖: PDF
封裝 引腳 下載
HTSSOP (PWP) 16 檢視選項
VQFN (RSA) 16 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