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TPS7H4001-SP

ACTIVE

Radiation-hardened, QML-P and QML-V, 3V to 7V input 18A synchronous step-down converter

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Data sheet

TPS7H4001-SP

ACTIVE
Data sheet Order now

Product details

Rating Space Topology Buck Iout (max) (A) 18 Vin (max) (V) 7 Vin (min) (V) 3 Vout (max) (V) 6.65 Vout (min) (V) 0.604 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) 0.004 Duty cycle (max) (%) 100
Rating Space Topology Buck Iout (max) (A) 18 Vin (max) (V) 7 Vin (min) (V) 3 Vout (max) (V) 6.65 Vout (min) (V) 0.604 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) 0.004 Duty cycle (max) (%) 100
DIESALE (KGD) — See data sheet CFP (HKY) 34 164.5158 mm² (21.59 mm × 7.62 mm) HTSSOP (DDW) 44 113.4 mm² (14 mm × 8.1 mm)
  • Radiation performance:
    • Radiation-hardness-assured up to TID 100 krad(Si)
    • SEL, SEB, and SEGR immune to LET = 75 MeV-cm 2/mg
    • SET and SEFI characterized up to LET = 75 MeV-cm 2/mg
  • Peak efficiency: 95.5% (V O = 1 V at 100 kHz)
  • Power rail: 3 V to 7 V on VIN
  • Flexible switching frequency options:
    • 100-kHz to 1-MHz adjustable internal oscillator
    • External sync capability: 100-kHz to 1-MHz
    • SYNC pins can be configured as 500-kHz clocks at 90° out of phase to parallel up to 4 devices
  • 0.6-V ±1.5% voltage reference over temperature, radiation, and line and load regulation for CDFP, KGD (known good die), and HTSSOP (QMLP) options
  • 0.6-V ±1.7% voltage reference over temperature, radiation, and line and load regulation for HTSSOP (SHP) option
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing
  • Radiation performance:
    • Radiation-hardness-assured up to TID 100 krad(Si)
    • SEL, SEB, and SEGR immune to LET = 75 MeV-cm 2/mg
    • SET and SEFI characterized up to LET = 75 MeV-cm 2/mg
  • Peak efficiency: 95.5% (V O = 1 V at 100 kHz)
  • Power rail: 3 V to 7 V on VIN
  • Flexible switching frequency options:
    • 100-kHz to 1-MHz adjustable internal oscillator
    • External sync capability: 100-kHz to 1-MHz
    • SYNC pins can be configured as 500-kHz clocks at 90° out of phase to parallel up to 4 devices
  • 0.6-V ±1.5% voltage reference over temperature, radiation, and line and load regulation for CDFP, KGD (known good die), and HTSSOP (QMLP) options
  • 0.6-V ±1.7% voltage reference over temperature, radiation, and line and load regulation for HTSSOP (SHP) option
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing

The TPS7H4001-SP is a radiation-hardness-assured, 7-V, 18-A synchronous buck converter with integrated low-resistance high-side and low-side MOSFETs. High efficiency and reduced component count are achieved through current mode control.

The output voltage start-up 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 possible by correctly configuring the enable and the power good pins. The TPS7H4001-SP can be configured in primary-secondary mode and with the SYNC2 pin, four devices can be configured in parallel without an external clock.

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 protection which prevents current runaway. Thermal shutdown disables the part when die temperature exceeds thermal limit.

The TPS7H4001-SP is a radiation-hardness-assured, 7-V, 18-A synchronous buck converter with integrated low-resistance high-side and low-side MOSFETs. High efficiency and reduced component count are achieved through current mode control.

The output voltage start-up 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 possible by correctly configuring the enable and the power good pins. The TPS7H4001-SP can be configured in primary-secondary mode and with the SYNC2 pin, four devices can be configured in parallel without an external clock.

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 protection which prevents current runaway. Thermal shutdown disables the part when die temperature exceeds thermal limit.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS7H4001-SP Radiation-Hardness-Assured 3-V to 7-V Input 18-A Synchronous Buck Converter datasheet (Rev. D) PDF | HTML May 8, 2023
* Radiation & reliability report TPS7H4001-SP (TPS7H4001MDDWTSHP) Total Ionizing Dose (TID) Radiation Report (Rev. A) PDF | HTML May 30, 2023
* Radiation & reliability report TPS7H4001-SP Single-Event Effects (SEE) Test Report (Rev. C) PDF | HTML May 16, 2023
* Radiation & reliability report TPS7H4001-QMLP Total Ionizing Dose (TID) Report Mar 16, 2023
* Radiation & reliability report TPS7H4001-SHP Production Flow and Reliability Report Jan 13, 2023
* Radiation & reliability report TPS7H4001-SP QMLV Total Ionizing Dose (TID) Radiation Report Nov 25, 2020
* Radiation & reliability report TPS7H4001-SP Neutron Displacement Damage Characterization Apr 27, 2020
* SMD TPS7H4001-SP SMD 5962-18205 Dec 8, 2020
Selection guide TI Space Products (Rev. L) Mar 27, 2026
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form (Rev. A) PDF | HTML Nov 5, 2025
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML Jun 17, 2025
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) PDF | HTML Jun 10, 2025
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) Feb 20, 2025
Application note Using Space Grade Power Components to Power AMD Kintex XQRKU060 FPGA PDF | HTML Nov 8, 2023
Application note Using Space Grade Power Components to Power Microchip RT PolarFire FPGA PDF | HTML Sep 20, 2023
Application note QML flow, its importance, and obtaining lot information (Rev. C) Aug 30, 2023
White paper Space Power Supply for the STAR-Tiger SpaceFibre Routing Switch PDF | HTML Jul 27, 2023
Application note Space Grade Power Solution for Microsemi RTG4 PDF | HTML May 2, 2023
Application note TI Space Rated Power Solution for Microsemi® RTG4™ FPGA (Rev. B) PDF | HTML Jan 19, 2023
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML Oct 19, 2022
Application brief Why Radiation Hardness Matters for Point-of-Load Converters PDF | HTML Jan 13, 2022
More literature Radiation Evaluation of the TPS7H4001-SP 18 Amps Buck Converte Jul 18, 2021
White paper Powering a New Era of High-Performance Space-Grade Xilinx FPGAs PDF | HTML Mar 29, 2021
User guide TPS7H4001-SP Worst Case Analysis Model PDF | HTML Mar 3, 2021
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer Aug 21, 2020
Application note How to Modify a 4-Channel TPS7H4001QEVM-CVAL into a 3-Channel EVM PDF | HTML Jun 30, 2020
Application note How to Modify a 4-Channel TPS7H4001QEVM-CVAL into a 2-Channel EVM (Rev. A) PDF | HTML Jun 22, 2020
Application note How to Modify a 4-Channel TPS7H4001QEVM-CVAL Into a 1-Channel EVM PDF | HTML May 14, 2020
User guide TSP7H4001-SP Unencrypted PSpice Average/Transient Model User's Guide Apr 30, 2020
E-book Radiation Handbook for Electronics (Rev. A) May 21, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS7H4001EVM-CVAL — TPS7H4001 evaluation module for one-channel, 18-A, synchronous step-down converter

The TPS7H4001EVM-CVAL evaluation module (EVM) demonstrates how the TPS7H4001-SP buck converter can provide point-of-load (POL) currents up to 18 A for applications where tight regulation tolerance is imperative, such as powering ASICs and FPGAs.

User guide: PDF
Supported products & hardware
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Evaluation board

TPS7H4001QEVM-CVAL — TPS7H4001 evaluation module for four-channel, 72-A, synchronous step-down converter

The TPS7H4001QEVM-CVAL evaluation module (EVM) demonstrates how four TPS7H4001-SP buck converters can be configured in master/slave mode to provide a regulated power rail capable of load current up to 72 A to support typical ASIC and FPGA applications.

User guide: PDF | HTML
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Evaluation board

TPS7H4003EVM — TPS7H4003 evaluation module for 3-V to 7-V input, 18-A, synchronous step-down converter

The TPS7H4003 evaluation module (EVM) demonstrates how the TPS7H4003-SEP buck converter can provide a regulated power rail capable of load current up to 18 A to support typical application-specific integrated circuit (ASIC) and field-programmable gate array (FPGA) applications.
User guide: PDF | HTML
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Development kit

ALPHA-XILINX-KU060-SPACE — Alpha Data® board for Xilinx® Kintex® UltraScale™ XQRKU060 FPGA with TI power

This is a development kit for the Xilinx® XQRKU060 FPGA with industrial -1 speed grade. ADA-SDEV-KIT2 has a modular board design with a XRTC-compatible configuration module, two FMC connectors, DDR3 DRAM, system monitoring, and space-grade TI power management and temperature-sensing solutions.
From: Alpha Data Parallel Systems Ltd.
Supported products & hardware
Third-party accessory

STARD-3P-STAR-TIGER — STAR-Dundee STAR-Tiger power supply for SpaceFibre using TI radiation-hardened power and analog ICs

STAR-Tiger is a high-performance SpaceFibre routing switch, part of the European Union Hi-SIDE project, and winner of the Innovation in Space Award from the European Space Forum. The power supply board in the STAR-Tiger unit provides the primary power rails to the Xilinx KU060 FPGA being used to (...)

From: STAR-Dundee Ltd.
Supported products & hardware
Simulation model

TPS7H4001 SIMPLIS Model

SLVME45.ZIP (19 KB) - SIMPLIS model
Supported products & hardware
Simulation model

TPS7H4001-SP PSpice Model (Rev. C)

SLVMD62C.ZIP (28 KB) - PSpice model
Supported products & hardware
Simulation model

TPS7H4001-SP PSpice Transient Model (Rev. B)

SLVMD63B.ZIP (37 KB) - PSpice model
Supported products & hardware
Simulation model

TPS7H4001-SP PSpice Worst-Case Analysis (WCA) Model (Rev. A)

SLVMDJ2A.ZIP (21 KB) - PSpice model
Supported products & hardware
Simulation model

TPS7H4001-SP TINA Average Reference Design (Rev. A)

SLVMD56A.ZIP (144 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

TPS7H4001-SP TINA Transient Reference Design (Rev. A)

SLVMD57A.ZIP (168 KB) - TINA-TI reference design
Supported products & hardware
Calculation tool

SLVRBF7 — TPS7H4001-SP Buck Converter Calculator

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
DIESALE (KGD) — Ultra Librarian
CFP (HKY) 34 Ultra Librarian
HTSSOP (DDW) 44 Ultra Librarian
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