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TPS7H4002-SP

現行

Radiation-hardened, QML-V, 3V to 5.5V input, 3A, synchronous step-down converter

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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 Operating temperature range (°C) -55 to 125 Iq (typ) (A) 0.0025 Duty cycle (max) (%) 100
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 Operating temperature range (°C) -55 to 125 Iq (typ) (A) 0.0025 Duty cycle (max) (%) 100
CFP (HKH) 20 93.726 mm² (— mm × — mm) 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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技術文件

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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 TPS7H4002-SP Radiation-Hardness-Assured 3-V to 5.5-V Input, 3-A Synchronous Step Down Converter datasheet (Rev. B) PDF | HTML 2022/1/24
* 輻射及可靠性報告 TPS7H4002-SP Total Ionizing Dose (TID) (Rev. A) 2021/8/31
* 輻射及可靠性報告 TPS7H4002-SP Neutron Displacement Damage (NDD) Characterization 2021/7/28
* 輻射及可靠性報告 Single-Event Effects Test Report of the TPS7H4002-SP Sync Step-Down Converter 2021/6/10
* SMD TPS7H4002-SP SMD 5962-20210 2021/9/2
選擇指南 TI Space Products (Rev. L) 2026/3/27
應用說明 Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form (Rev. A) PDF | HTML 2025/11/5
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 2025/6/17
應用說明 Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) PDF | HTML 2025/6/10
更多文件說明 TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) 2025/2/20
應用說明 Using Space Grade Power Components to Power Microchip RTAX-S/SL FPGA PDF | HTML 2023/9/29
應用說明 QML flow, its importance, and obtaining lot information (Rev. C) 2023/8/30
應用說明 Space Grade Power Solution for Microsemi RTG4 PDF | HTML 2023/5/2
應用說明 Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 2022/10/19
Application brief Why Radiation Hardness Matters for Point-of-Load Converters PDF | HTML 2022/1/13
應用說明 DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 2020/8/21
電子書 Radiation Handbook for Electronics (Rev. A) 2019/5/21

設計與開發

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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。

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模擬型號

TPS7H4002-SP PSpice Model

SLVMDO0.ZIP (26 KB) - PSpice 模型
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模擬型號

TPS7H4002-SP PSpice Transient Model

SLVMDO1.ZIP (42 KB) - PSpice 模型
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計算工具

SLVRBH9 — TPS7H4002-SP Buck Converter Calculator

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CFP (HKH) 20 Ultra Librarian
DIESALE (KGD) — Ultra Librarian
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