Inicio Administración de potencia Convertidores de CA/CC y CC/CC (FET integrado)
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Administración de potencia
Convertidores de CA/CC y CC/CC (FET integrado)

TPS7H4002-SP

ACTIVO

Convertidor reductor síncrono QMLV reforzado contra la radiación, entrada de 3 V a 5.5 V, 3 A

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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 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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Documentación técnica

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* 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 24 ene 2022
* SMD TPS7H4002-SP SMD 5962-20210 02 sep 2021
* Radiation & reliability report TPS7H4002-SP Total Ionizing Dose (TID) (Rev. A) 31 ago 2021
* Radiation & reliability report TPS7H4002-SP Neutron Displacement Damage (NDD) Characterization 28 jul 2021
* Radiation & reliability report Single-Event Effects Test Report of the TPS7H4002-SP Sync Step-Down Converter 10 jun 2021
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form (Rev. A) PDF | HTML 05 nov 2025
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 17 jun 2025
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) PDF | HTML 10 jun 2025
Selection guide TI Space Products (Rev. K) 04 abr 2025
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) 20 feb 2025
Application note Using Space Grade Power Components to Power Microchip RTAX-S/SL FPGA PDF | HTML 29 sep 2023
Application note QML flow, its importance, and obtaining lot information (Rev. C) 30 ago 2023
Application note Space Grade Power Solution for Microsemi RTG4 PDF | HTML 02 may 2023
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 19 oct 2022
Application brief Why Radiation Hardness Matters for Point-of-Load Converters PDF | HTML 13 ene 2022
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 21 ago 2020
E-book Radiation Handbook for Electronics (Rev. A) 21 may 2019

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

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.

Guía del usuario: PDF | HTML
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Modelo de simulación

TPS7H4002-SP PSpice Model

SLVMDO0.ZIP (26 KB) - PSpice Model
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Modelo de simulación

TPS7H4002-SP PSpice Transient Model

SLVMDO1.ZIP (42 KB) - PSpice Model
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Herramienta de cálculo

SLVRBH9 — TPS7H4002-SP Buck Converter Calculator

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
  • TPS7H4002-SP — Convertidor reductor síncrono QMLV reforzado contra la radiación, entrada de 3 V a 5.5 V, 3 A
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
CFP (HKH) 20 Ultra Librarian
DIESALE (KGD) —
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

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