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TPS7H4002-SP

ACTIVO

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

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TPS7H4002-SP

ACTIVO
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Detalles del producto

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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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS7H4002-SP Radiation-Hardness-Assured 3-V to 5.5-V Input, 3-A Synchronous Step Down Converter datasheet (Rev. B) PDF | HTML 24/01/2022
* Informe de radiación y confiabilidad TPS7H4002-SP Total Ionizing Dose (TID) (Rev. A) 31/08/2021
* Informe de radiación y confiabilidad TPS7H4002-SP Neutron Displacement Damage (NDD) Characterization 28/07/2021
* Informe de radiación y confiabilidad Single-Event Effects Test Report of the TPS7H4002-SP Sync Step-Down Converter 10/06/2021
* SMD TPS7H4002-SP SMD 5962-20210 2/09/2021
Guía de selección TI Space Products (Rev. L) 27/03/2026
Nota sobre la aplicación Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form (Rev. A) PDF | HTML 5/11/2025
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 17/06/2025
Nota sobre la aplicación Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) PDF | HTML 10/06/2025
Más documentación TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) 20/02/2025
Nota sobre la aplicación Using Space Grade Power Components to Power Microchip RTAX-S/SL FPGA PDF | HTML 29/09/2023
Nota sobre la aplicación QML flow, its importance, and obtaining lot information (Rev. C) 30/08/2023
Nota sobre la aplicación Space Grade Power Solution for Microsemi RTG4 PDF | HTML 2/05/2023
Nota sobre la aplicación Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 19/10/2022
Application brief Why Radiation Hardness Matters for Point-of-Load Converters PDF | HTML 13/01/2022
Nota sobre la aplicación DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 21/08/2020
Libro electrónico Radiation Handbook for Electronics (Rev. A) 21/05/2019

Diseño y desarrollo

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Placa de evaluación

TPS7H4002EVM-CVAL — Módulo de evaluación TPS7H4002-SP para convertidor reductor síncrono de 3 A y con entrada de 3 V a 5

El TPS7H4002EVM-CVAL demuestra cómo el convertidor buck TPS7H4002-SP resistente a la radiación proporciona un carril de alimentación regulado, capaz de cargar una corriente de hasta 3 A para admitir aplicaciones típicas de administración de energía de grado espacial.

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Modelo de simulación

TPS7H4002-SP PSpice Model

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Modelo de simulación

TPS7H4002-SP PSpice Transient Model

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Herramienta de cálculo

SLVRBH9 — TPS7H4002-SP Buck Converter Calculator

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
CFP (HKH) 20 Ultra Librarian
DIESALE (KGD) — Ultra Librarian
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