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TPS7H4001-SP

ACTIVE

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

TPS7H4001-SP

ACTIVE

Product details

Vin (min) (V) 3 Vin (max) (V) 7 Vout (min) (V) 0.604 Vout (max) (V) 6.65 Iout (max) (A) 18 Iq (typ) (mA) 4 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable Operating temperature range (°C) -55 to 125 Rating Space Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 3 Vin (max) (V) 7 Vout (min) (V) 0.604 Vout (max) (V) 6.65 Iout (max) (A) 18 Iq (typ) (mA) 4 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable Operating temperature range (°C) -55 to 125 Rating Space Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 100 Type Converter
CFP (HKY) 34 164.5158 mm² 21.59 x 7.62 DIESALE (KGD) See data sheet HTSSOP (DDW) 44 113.4 mm² 14 x 8.1
  • 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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Type Title Date
* Data sheet TPS7H4001-SP Radiation-Hardness-Assured 3-V to 7-V Input 18-A Synchronous Buck Converter datasheet (Rev. D) PDF | HTML 08 May 2023
* Radiation & reliability report TPS7H4001-SP (TPS7H4001MDDWTSHP) Total Ionizing Dose (TID) Radiation Report (Rev. A) PDF | HTML 30 May 2023
* Radiation & reliability report TPS7H4001-SP Single-Event Effects (SEE) Test Report (Rev. C) PDF | HTML 16 May 2023
* Radiation & reliability report TPS7H4001-QMLP Total Ionizing Dose (TID) Report 16 Mar 2023
* Radiation & reliability report TPS7H4001-SHP Production Flow and Reliability Report 13 Jan 2023
* SMD TPS7H4001-SP SMD 5962-18205 08 Dec 2020
* Radiation & reliability report TPS7H4001-SP QMLV Total Ionizing Dose (TID) Radiation Report 25 Nov 2020
* Radiation & reliability report TPS7H4001-SP Neutron Displacement Damage Characterization 27 Apr 2020
Application note Using Space Grade Power Components to Power AMD Kintex XQRKU060 FPGA PDF | HTML 08 Nov 2023
Application note Using Space Grade Power Components to Power Microchip RT PolarFire FPGA PDF | HTML 20 Sep 2023
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. A) 31 Aug 2023
Application note QML flow, its importance, and obtaining lot information (Rev. C) 30 Aug 2023
White paper Space Power Supply for the STAR-Tiger SpaceFibre Routing Switch PDF | HTML 27 Jul 2023
Application note Space Grade Power Solution for Microsemi RTG4 PDF | HTML 02 May 2023
Application note TI Space Rated Power Solution for Microsemi® RTG4™ FPGA (Rev. B) PDF | HTML 19 Jan 2023
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A) PDF | HTML 17 Nov 2022
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 19 Oct 2022
Selection guide TI Space Products (Rev. I) 03 Mar 2022
Application brief Why Radiation Hardness Matters for Point-of-Load Converters PDF | HTML 13 Jan 2022
More literature Radiation Evaluation of the TPS7H4001-SP 18 Amps Buck Converte 18 Jul 2021
White paper Powering a New Era of High-Performance Space-Grade Xilinx FPGAs PDF | HTML 29 Mar 2021
User guide TPS7H4001-SP Worst Case Analysis Model PDF | HTML 03 Mar 2021
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 21 Aug 2020
Application note How to Modify a 4-Channel TPS7H4001QEVM-CVAL into a 3-Channel EVM PDF | HTML 30 Jun 2020
Application note How to Modify a 4-Channel TPS7H4001QEVM-CVAL into a 2-Channel EVM (Rev. A) PDF | HTML 22 Jun 2020
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form PDF | HTML 18 May 2020
Application note How to Modify a 4-Channel TPS7H4001QEVM-CVAL Into a 1-Channel EVM PDF | HTML 14 May 2020
User guide TSP7H4001-SP Unencrypted PSpice Average/Transient Model User's Guide 30 Apr 2020
EVM User's guide TPS7H4001EVM-CVAL Evaluation Module (EVM) User's Guide 22 Apr 2020
E-book Radiation Handbook for Electronics (Rev. A) 21 May 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
Not available on TI.com
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
Not available on TI.com
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
Not available on TI.com
Evaluation board

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 (...)

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.
Simulation model

TPS7H4001 SIMPLIS Model

SLVME45.ZIP (19 KB) - SIMPLIS Model
Simulation model

TPS7H4001-SP PSpice Model (Rev. B)

SLVMD62B.ZIP (27 KB) - PSpice Model
Simulation model

TPS7H4001-SP PSpice Transient Model (Rev. B)

SLVMD63B.ZIP (37 KB) - PSpice Model
Simulation model

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

SLVMDJ2A.ZIP (21 KB) - PSpice Model
Simulation model

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

SLVMD56A.ZIP (144 KB) - TINA-TI Reference Design
Simulation model

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

SLVMD57A.ZIP (168 KB) - TINA-TI Reference Design
Calculation tool

SLVRBF7 TPS7H4001-SP Buck Converter Calculator

Supported products & hardware

Supported products & hardware

Products
Buck converters (integrated switch)
TPS7H4001-SP Radiation-hardened, QMLV and QMLP, 3-V to 7-V input 18-A synchronous step-down converter
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
CFP (HKY) 34 View options
DIESALE (KGD)
HTSSOP (DDW) 44 View options

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  • Ongoing reliability monitoring
Information included:
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