首頁 電源管理 DC/DC 切換穩壓器 DC/DC 轉換器
首頁
電源管理
DC/DC 切換穩壓器
DC/DC 轉換器

TPS54538

現行

3.8-V 至 28-V、5-A、200-kHz 至 2.2-MHz 同步降壓轉換器

立即訂購
產品規格表

TPS54538

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 5 Vin (max) (V) 28 Vin (min) (V) 3.8 Vout (max) (V) 22 Vout (min) (V) 0.6 Features Adjustable soft start, Adjustable switching frequency, Enable, External Sync, Light-load efficiency, Low Quiescent Current, Phase interleaving, UVLO adjustable EMI features Fixed-frequency control, Low parasitic packaging, Mitigated interference & noise technology – architecture 1 (MINT 1), Pinout optimization, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000028 Duty cycle (max) (%) 98 Sector Robotics, Test & measurement
Rating Catalog Topology Buck Iout (max) (A) 5 Vin (max) (V) 28 Vin (min) (V) 3.8 Vout (max) (V) 22 Vout (min) (V) 0.6 Features Adjustable soft start, Adjustable switching frequency, Enable, External Sync, Light-load efficiency, Low Quiescent Current, Phase interleaving, UVLO adjustable EMI features Fixed-frequency control, Low parasitic packaging, Mitigated interference & noise technology – architecture 1 (MINT 1), Pinout optimization, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000028 Duty cycle (max) (%) 98 Sector Robotics, Test & measurement
VQFN-HR (RQF) 9 3 mm² (2 mm × 1.5 mm)
  • Mitigated interference and noise technology - architecture 1 (MINT 1)
    • Facilitates CISPR 25 Class 5 Compliance
    • Good electromagnetic interference (EMI) performance with frequency spread spectrum and optimized pinout
  • Configured for a wide range of applications
    • 3.8V to 28V input voltage range
    • 0.6V to 22V output voltage range
    • Up to 5A (TPS54538), 4A (TPS54438), 3A (TPS54338) continuous output current
    • 0.6V ±1% reference voltage (–40°C to 150°C)
    • 70ns and 114ns minimum switching on and off-time
    • 8us maximum switching on-time
    • 98% maximum duty cycle
  • High efficiency
    • Integrated 47mΩ and 21mΩ MOSFETs
    • Low quiescent current of 28uA (typical)
  • Ease of use and small design size
    • Peak current control mode with internal compensation
    • 200kHz to 2.2MHz selectable frequency
    • Synchronizable to an external clock (support phase shift): 200kHz to 2.2MHz
    • Selectable PFM / FCCM at light load condition
    • Selectable adjustable soft-start time, power-good indicator function
    • Hiccup OC limit for both high-side and low-side MOSFETs
    • Non-latched protections for OTP, OCP, OVP, UVP, and UVLO
    • Integrated bootstrap capacitor to support single-layer PCB layout
    • –40°C to 150°C operating junction temperature
    • 1.5mm × 2.0mm QFN package
  • Create a custom design with the TPS54x38 using the WEBENCH Power Designer
  • Mitigated interference and noise technology - architecture 1 (MINT 1)
    • Facilitates CISPR 25 Class 5 Compliance
    • Good electromagnetic interference (EMI) performance with frequency spread spectrum and optimized pinout
  • Configured for a wide range of applications
    • 3.8V to 28V input voltage range
    • 0.6V to 22V output voltage range
    • Up to 5A (TPS54538), 4A (TPS54438), 3A (TPS54338) continuous output current
    • 0.6V ±1% reference voltage (–40°C to 150°C)
    • 70ns and 114ns minimum switching on and off-time
    • 8us maximum switching on-time
    • 98% maximum duty cycle
  • High efficiency
    • Integrated 47mΩ and 21mΩ MOSFETs
    • Low quiescent current of 28uA (typical)
  • Ease of use and small design size
    • Peak current control mode with internal compensation
    • 200kHz to 2.2MHz selectable frequency
    • Synchronizable to an external clock (support phase shift): 200kHz to 2.2MHz
    • Selectable PFM / FCCM at light load condition
    • Selectable adjustable soft-start time, power-good indicator function
    • Hiccup OC limit for both high-side and low-side MOSFETs
    • Non-latched protections for OTP, OCP, OVP, UVP, and UVLO
    • Integrated bootstrap capacitor to support single-layer PCB layout
    • –40°C to 150°C operating junction temperature
    • 1.5mm × 2.0mm QFN package
  • Create a custom design with the TPS54x38 using the WEBENCH Power Designer

The TPS54x38 is a high-efficiency, high-voltage input, and easy-to-use synchronous buck converter with high design flexibility. With the wide operating input voltage range of 3.8V to 28V, the TPS54x38 is designed for systems powered from 5V, 12V, 19V, 24V power-bus rails. The device supports up to 5A, 4A, 3A continuous output current and 98% maximum duty cycle.

TPS54x38 uses fixed frequency peak current control with internal compensation for fast transient response and good line and load regulation. With the optimized internal loop compensation, the device eliminates the need for external compensation over a wide output voltage range and switching frequency. Integrated bootstrap capacitor helps achieve single layer PCB and reduce external component count.

TPS54x38 allows high design flexibility with wide supported switching frequency of 200kHz – 2.2MHz set by the RT/SYNC pin. The device has the option for pulse frequency modulation (PFM), forced continuous conduction modulation (FCCM) at light load condition and adjustable soft-start (SS) time / power-good (PG) indicator with different configuration of the MODE pin.

TPS54x38 provides protection functions including thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. TPS54x38 is available in 9-pin 1.5mm × 2.0mm QFN package and the pinout is available for single-layer PCB layout and the junction temperature is specified from –40°C to 150°C.

The TPS54x38 is designed with mitigated interference and noise technology using architecture 1 features (MINT 1) to quickly and easily implement a low-EMI design.

The TPS54x38 is a high-efficiency, high-voltage input, and easy-to-use synchronous buck converter with high design flexibility. With the wide operating input voltage range of 3.8V to 28V, the TPS54x38 is designed for systems powered from 5V, 12V, 19V, 24V power-bus rails. The device supports up to 5A, 4A, 3A continuous output current and 98% maximum duty cycle.

TPS54x38 uses fixed frequency peak current control with internal compensation for fast transient response and good line and load regulation. With the optimized internal loop compensation, the device eliminates the need for external compensation over a wide output voltage range and switching frequency. Integrated bootstrap capacitor helps achieve single layer PCB and reduce external component count.

TPS54x38 allows high design flexibility with wide supported switching frequency of 200kHz – 2.2MHz set by the RT/SYNC pin. The device has the option for pulse frequency modulation (PFM), forced continuous conduction modulation (FCCM) at light load condition and adjustable soft-start (SS) time / power-good (PG) indicator with different configuration of the MODE pin.

TPS54x38 provides protection functions including thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. TPS54x38 is available in 9-pin 1.5mm × 2.0mm QFN package and the pinout is available for single-layer PCB layout and the junction temperature is specified from –40°C to 150°C.

The TPS54x38 is designed with mitigated interference and noise technology using architecture 1 features (MINT 1) to quickly and easily implement a low-EMI design.
filter 尋找其它 DC/DC 轉換器
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
具備升級功能，可直接投入使用替代所比較的裝置。
TPS543521 現行 3.8V 至 18V 輸入、5A、200kHz 至 2.2MHz 同步降壓轉換器 Optimized for 18-VIN in same form factor.
TPS54338 現行 3.8V 至 28V 輸入、3A、200kHz 至 2.2MHz 同步降壓轉換器 Optimized for lower current in same form factor.
TPS54438 現行 3.8V 至 28V 輸入、4A、200kHz 至 2.2MHz 同步降壓轉換器 Optimized for lower current in same form factor.
功能相似於所比較的產品。
TPSM84538 現行 3.8V 至 28V 輸入，5A，200kHz 至 2.2MHz 同步降壓電源模組 Module version featuring TPS54538 with inductor integrated.

技術文件

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
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS54x38 3.8V to 28V, 5A, 4A, 3A, Synchronous Buck Converter With User Selectable Mode and Mitigated Interference and Noise Technology (MINT) datasheet (Rev. C) PDF | HTML 2026/6/25
證書 TPS54538EVM EU Declaration of Conformity (DoC) 2024/11/15
應用說明 Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part II: Hybrid Sense Network PDF | HTML 2024/2/27

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

TPS54538EVM — TPS54538 評估模組

TPS54538EVM 是完全組裝且經過測試的電路，可用於評估 TPS54538 轉換器。評估模組設定為在 3.8V 至 28V 輸入電壓範圍內運作，並且提供最高 5A 負載電流的穩壓 5V 輸出。裝置的大多數設定皆可透過跨接器輕鬆調整或設定，例如：操作模式、緩啟動時間和切換頻率。
使用指南: PDF | HTML
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
模擬型號

TPS54538 PSpice Transient Model

SLUM922.ZIP (269 KB) - PSpice 模型
支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN-HR (RQF) 9 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

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