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
最新

TPS7H4011-SEP

現行

耐輻射、4.5V 至 14V 輸入 12A 同步降壓轉換器

立即訂購
產品規格表

TPS7H4011-SEP

現行
產品規格表 立即訂購

產品詳細資料

Rating Space Topology Buck Iout (max) (A) 12 Vin (max) (V) 14 Vin (min) (V) 4.5 Vout (max) (V) 11.5 Vout (min) (V) 0.6 Features Differential Remote Sense, Enable, Frequency synchronization, Overcurrent protection, Power good, Prebias startup, Programmable current limit, Soft-start adjustable, Synchronous rectification, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -55 to 125 Duty cycle (max) (%) 100
Rating Space Topology Buck Iout (max) (A) 12 Vin (max) (V) 14 Vin (min) (V) 4.5 Vout (max) (V) 11.5 Vout (min) (V) 0.6 Features Differential Remote Sense, Enable, Frequency synchronization, Overcurrent protection, Power good, Prebias startup, Programmable current limit, Soft-start adjustable, Synchronous rectification, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -55 to 125 Duty cycle (max) (%) 100
HTSSOP (DDW) 44 113.4 mm² 14 x 8.1
  • Total ionizing dose (TID) characterized
    • Radiation hardness assurance (RHA) availability of up to 100krad(Si)
  • Single-Event Effects (SEE) characterized
    • Single-event latchup (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune up to linear energy transfer (LET) = 75MeV-cm2/mg
    • Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg
  • Input voltage range from 4.5V to 14V
  • 12A maximum output current
  • High efficiency (typical values for VIN = 12V, VOUT = 3.3V, fSW = 500kHz)
    • 91% (CFP), 91% (plastic) at 2A
    • 87% (CFP), 88% (plastic) at 9A
    • 85% (CFP), 86% (plastic) at 12A
  • Integrated HS 45mΩ(CFP)/31mΩ(plastic) and LS 33mΩ(CFP)/27mΩ(plastic) MOSFETs (typ at 12V)
  • Flexible switching frequency options:
    • 100kHz to 1MHz, accurate (±15% or better), adjustable internal oscillator
    • 100kHz to 1MHz external sync capability
    • SYNC pins can be configured 90° out of phase to parallel up to 4 devices
  • 0.6V ±0.67% (CFP), ±0.83% (plastic) voltage reference over line, temperature, and radiation
  • Differential remote sensing
  • Selectable current limit
  • FAULT input pin for flexible fault management
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing
  • Power-good output monitor for undervoltage and overvoltage
  • Supports inverting buck-boost topology
  • Plastic packages outgas tested per ASTM E595
  • Available in military (–55°C to 125°C) temperature range
  • Total ionizing dose (TID) characterized
    • Radiation hardness assurance (RHA) availability of up to 100krad(Si)
  • Single-Event Effects (SEE) characterized
    • Single-event latchup (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune up to linear energy transfer (LET) = 75MeV-cm2/mg
    • Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg
  • Input voltage range from 4.5V to 14V
  • 12A maximum output current
  • High efficiency (typical values for VIN = 12V, VOUT = 3.3V, fSW = 500kHz)
    • 91% (CFP), 91% (plastic) at 2A
    • 87% (CFP), 88% (plastic) at 9A
    • 85% (CFP), 86% (plastic) at 12A
  • Integrated HS 45mΩ(CFP)/31mΩ(plastic) and LS 33mΩ(CFP)/27mΩ(plastic) MOSFETs (typ at 12V)
  • Flexible switching frequency options:
    • 100kHz to 1MHz, accurate (±15% or better), adjustable internal oscillator
    • 100kHz to 1MHz external sync capability
    • SYNC pins can be configured 90° out of phase to parallel up to 4 devices
  • 0.6V ±0.67% (CFP), ±0.83% (plastic) voltage reference over line, temperature, and radiation
  • Differential remote sensing
  • Selectable current limit
  • FAULT input pin for flexible fault management
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing
  • Power-good output monitor for undervoltage and overvoltage
  • Supports inverting buck-boost topology
  • Plastic packages outgas tested per ASTM E595
  • Available in military (–55°C to 125°C) temperature range

The TPS7H4011 is a 14V, 12A synchronous buck converter optimized for use in a space environment. The peak current mode converter obtains high efficiency with good transient performance and reduced component count.

The wide voltage range of the TPS7H4011 enables it to be used as a point of load regulator to convert directly from a 12V or 5V rail. The output voltage start-up ramp is controlled by the SS_TR pin. Power sequencing is possible with the EN and PWRGD pins.

The device can be configured with up-to four devices in parallel without an external clock for increased current capabilities. Additionally, various features are included such as differential remote sensing, selectable current limit, a flexible fault input pin, and configurable compensation.

The TPS7H4011 is a 14V, 12A synchronous buck converter optimized for use in a space environment. The peak current mode converter obtains high efficiency with good transient performance and reduced component count.

The wide voltage range of the TPS7H4011 enables it to be used as a point of load regulator to convert directly from a 12V or 5V rail. The output voltage start-up ramp is controlled by the SS_TR pin. Power sequencing is possible with the EN and PWRGD pins.

The device can be configured with up-to four devices in parallel without an external clock for increased current capabilities. Additionally, various features are included such as differential remote sensing, selectable current limit, a flexible fault input pin, and configurable compensation.

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
功能與所比較的裝置相似
TPS7H4003-SEP 現行 採用航太級強化型塑膠封裝的耐輻射、3-V 至 7-V、18-A、同步降壓轉換器 A device that uses the same package with a smaller input voltage range and larger output current
最新 TPS7H4012-SEP 現行 耐輻射、4.5V 至 14V 輸入 6A 同步降壓轉換器 A device that uses the same package with the same input voltage, but reduced current output

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 9
重要文件 類型 標題 格式選項 日期
* Data sheet TPS7H4011-SP and TPS7H4011-SEP 4.5V to 14V Input 12A Radiation Hardened Synchronous Buck Converter datasheet (Rev. C) PDF | HTML 2025年 11月 25日
* Radiation & reliability report TPS7H4011 Plastic Neutron Displacement Damage (NDD) Characterization Report (Rev. A) 2025年 12月 15日
* Radiation & reliability report TPS7H4011-SEP Total Ionizing Dose (TID) Radiation Report (Rev. B) 2025年 12月 3日
* Radiation & reliability report TPS7H401X-SEP Production Flow and Reliability Report PDF | HTML 2025年 11月 25日
* Radiation & reliability report TPS7H4011-SEP Single-Event Effects (SEE) PDF | HTML 2025年 10月 13日
Selection guide TI Space Products (Rev. L) 2026年 3月 27日
Application brief Space Grade 12A Laser Diode Driver PDF | HTML 2026年 2月 17日
Application note Reduce the Risk in Low-Earth Orbit Missions with Space Enhanced Plastic Products (Rev. A) PDF | HTML 2022年 9月 15日
E-book Radiation Handbook for Electronics (Rev. A) 2019年 5月 21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

TPS7H4011EVM — 適用於 4.5V 至 14V 輸入、12A 同步降壓轉換器的 TPS7H4011-SEP 和 QMLP 評估模組

TPS7H4011 評估模組 (EVM) 可展示單一 TPS7H4011-SEP 降壓轉換器（塑膠封裝）的運作。電路板提供可裝入其他元件的元件封裝，以便進行自訂配置測試，並提供跨接器和測試點，以簡化裝置配置和性能驗證。

使用指南: PDF | HTML
TI.com 無法提供
開發板

TPS7H4011QEVM-CVAL — TPS7H4011-SP 評估模組

TPS7H4011QEVM-CVAL 展示了四個 TPS7H4011-SP 降壓轉換器（陶瓷封裝）的並聯、正交相位運作。該評估模組提供了可裝入額外元件的元件封裝，以便進行自訂配置測試，並提供測試點，方便進行裝置配置、性能驗證與分析。
使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS7H4011x PSpice Average Model (AC stability)

SNVMCE8.ZIP (25 KB) - PSpice Model
下載
模擬型號

TPS7H401x PSpice Transient Model

SNVMCE1.ZIP (61 KB) - PSpice Model
下載
模擬型號

TPS7H401x SIMPLIS Model

SNVMCD9.ZIP (25 KB) - SIMPLIS Model
下載
模擬型號

TPS7H401x SIMPLIS Transient Model

SNVMCF4.ZIP (55 KB) - SIMPLIS Model
下載
計算工具

TPS7H4011-CALC — TPS7H4011 component calculator

TPS7H4011 component calculator
支援產品和硬體

支援產品和硬體
下載
參考設計

TIDA-011004 — 航太級 3U VPX 電源供應模組參考設計

此參考設計為符合航太級 3U VPX 架構 VITA-62 標準的航太級電源供應模組。Space VPX 標準透過定義模組化且可擴充系統的架構，讓這類系統可用於各種不同的任務型態，從而實現了標準化和互操作性。此參考設計採用精巧外型尺寸實作，同時維持高整體性能。
Design guide: PDF
參考設計

TIDA-010274 — 航太級離散式 RF 取樣收發器參考設計

此參考設計整合了一個 10 GSPS 雙數位轉類比轉換器和一個 5 GSPS 雙類比轉數位轉換器，RF 介面上有主動式平衡不平衡轉換器，支援 X 頻帶。此設計還整合了航太級時脈子卡和航太級電源解決方案子卡。
Design guide: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (DDW) 44 Ultra Librarian
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
  • 認證摘要
  • 進行中的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

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