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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS7H4002-SP

現行

抗輻射 QMLV、3-V 至 5.5-V 輸入、3-A 同步降壓轉換器

立即訂購
產品規格表

TPS7H4002-SP

現行
產品規格表 立即訂購

產品詳細資料

Rating Space Topology Buck Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 3 Vout (max) (V) 5.3 Vout (min) (V) 0.804 Features Enable, Frequency synchronization, Overcurrent protection, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, Tracking, UVLO adjustable Control mode current mode Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -55 to 125 Iq (typ) (µA) 2500 Duty cycle (max) (%) 100 Type Converter
Rating Space Topology Buck Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 3 Vout (max) (V) 5.3 Vout (min) (V) 0.804 Features Enable, Frequency synchronization, Overcurrent protection, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, Tracking, UVLO adjustable Control mode current mode Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -55 to 125 Iq (typ) (µA) 2500 Duty cycle (max) (%) 100 Type Converter
CFP (HKH) 20 93.726 mm² 12.7 x 7.38 DIESALE (KGD) — See data sheet
  • Radiation performance:
    • Radiation-hardness-assured up to TID 100 krad(Si)
    • SEL, SEB, and SEGR immune to LET = 75 MeV-cm2/mg
    • SET and SEFI characterized up to LET = 75 MeV-cm2/mg
  • Peak efficiency: 96.9% (VO = 2.5 V)
  • Integrated 50-mΩ and 35-mΩ MOSFETs
  • Power rail: 3 to 5.5 V on VIN
  • 3-A maximum output current
  • Flexible switching frequency options:
    • 100-kHz to 1-MHz adjustable internal oscillator
    • External sync capability: 100 kHz to 1 MHz
    • SYNC pin can be configured as a 500-kHz output for primary-secondary applications
  • 0.807-V ±1.5% voltage reference over temperature, radiation, and line and load regulation
  • Monotonic start-up into prebiased outputs
  • Adjustable soft start through external capacitor
  • Input enable and power-good output for power sequencing
  • Power good output monitor for undervoltage and overvoltage
  • Adjustable input undervoltage lockout (UVLO)
  • 20-pin ultra-small, thermally-enhanced ceramic flatpack package (HKH) for space applications
  • Radiation performance:
    • Radiation-hardness-assured up to TID 100 krad(Si)
    • SEL, SEB, and SEGR immune to LET = 75 MeV-cm2/mg
    • SET and SEFI characterized up to LET = 75 MeV-cm2/mg
  • Peak efficiency: 96.9% (VO = 2.5 V)
  • Integrated 50-mΩ and 35-mΩ MOSFETs
  • Power rail: 3 to 5.5 V on VIN
  • 3-A maximum output current
  • Flexible switching frequency options:
    • 100-kHz to 1-MHz adjustable internal oscillator
    • External sync capability: 100 kHz to 1 MHz
    • SYNC pin can be configured as a 500-kHz output for primary-secondary applications
  • 0.807-V ±1.5% voltage reference over temperature, radiation, and line and load regulation
  • Monotonic start-up into prebiased outputs
  • Adjustable soft start through external capacitor
  • Input enable and power-good output for power sequencing
  • Power good output monitor for undervoltage and overvoltage
  • Adjustable input undervoltage lockout (UVLO)
  • 20-pin ultra-small, thermally-enhanced ceramic flatpack package (HKH) for space applications

The TPS7H4002-SP is a radiation hardened, 5.5-V, 3-A synchronous step-down converter, which is optimized for small designs through high efficiency and by integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and a high switching frequency, which reduces the inductor footprint.

The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins. In addition, the TPS7H4002-SP can be configured in primary-secondary mode for parallel operation.

Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal limit.

The TPS7H4002-SP is a radiation hardened, 5.5-V, 3-A synchronous step-down converter, which is optimized for small designs through high efficiency and by integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and a high switching frequency, which reduces the inductor footprint.

The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins. In addition, the TPS7H4002-SP can be configured in primary-secondary mode for parallel operation.

Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal limit.
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類型 標題 日期
* Data sheet TPS7H4002-SP Radiation-Hardness-Assured 3-V to 5.5-V Input, 3-A Synchronous Step Down Converter datasheet (Rev. B) PDF | HTML 2022年 1月 24日
* SMD TPS7H4002-SP SMD 5962-20210 2021年 9月 2日
* Radiation & reliability report TPS7H4002-SP Total Ionizing Dose (TID) (Rev. A) 2021年 8月 31日
* Radiation & reliability report TPS7H4002-SP Neutron Displacement Damage (NDD) Characterization 2021年 7月 28日
* Radiation & reliability report Single-Event Effects Test Report of the TPS7H4002-SP Sync Step-Down Converter 2021年 6月 10日
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form (Rev. A) PDF | HTML 2025年 11月 5日
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 2025年 6月 17日
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) PDF | HTML 2025年 6月 10日
Selection guide TI Space Products (Rev. K) 2025年 4月 4日
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) 2025年 2月 20日
Application note Using Space Grade Power Components to Power Microchip RTAX-S/SL FPGA PDF | HTML 2023年 9月 29日
Application note QML flow, its importance, and obtaining lot information (Rev. C) 2023年 8月 30日
Application note Space Grade Power Solution for Microsemi RTG4 PDF | HTML 2023年 5月 2日
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 2022年 10月 19日
Application brief Why Radiation Hardness Matters for Point-of-Load Converters PDF | HTML 2022年 1月 13日
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 2020年 8月 21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

TPS7H4002EVM-CVAL — 適用於 3-V、3-V 至 5.5-V 輸入、同步降壓轉換器的 TPS7H4002-SP 評估模組

TPS7H4002EVM-CVAL 展示抗輻射 TPS7H4002-SP 降壓轉換器如何提供可負載最高 3A 電流的穩壓電源軌，以支援典型航太電源管理網路應用。

使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS7H4002-SP PSpice Model

SLVMDO0.ZIP (26 KB) - PSpice Model
下載
模擬型號

TPS7H4002-SP PSpice Transient Model

SLVMDO1.ZIP (42 KB) - PSpice Model
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計算工具

SLVRBH9 — TPS7H4002-SP Buck Converter Calculator

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產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
  • TPS7H4002-SP — 抗輻射 QMLV、3-V 至 5.5-V 輸入、3-A 同步降壓轉換器
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CFP (HKH) 20 Ultra Librarian
DIESALE (KGD) —
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