Radiation-hardness-assured (RHA), 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) (uA) 4000 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, 25 to 25 Rating Space Regulated outputs (#) 1
Vin (Min) (V) 3 Vin (Max) (V) 7 Vout (Min) (V) 0.604 Vout (Max) (V) 6.65 Iout (Max) (A) 18 Iq (Typ) (uA) 4000 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, 25 to 25 Rating Space Regulated outputs (#) 1
CFP (HKY) 34 164 mm² 21.49 x 7.62
  • 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: 95.5% (VO = 1 V at 100 kHz)
  • Integrated 22-mΩ and 17-mΩ MOSFETs
  • 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
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing
  • Power-good output monitor for undervoltage and overvoltage
  • 34-pin, thermally-enhanced ceramic flatpack package (HKY) 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: 95.5% (VO = 1 V at 100 kHz)
  • Integrated 22-mΩ and 17-mΩ MOSFETs
  • 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
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing
  • Power-good output monitor for undervoltage and overvoltage
  • 34-pin, thermally-enhanced ceramic flatpack package (HKY) for space applications

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 in a thermally enhanced 34-pin ceramic flatpack package. 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. There is also a low-side sinking current protection which turns off the low-side MOSFET to prevent excessive reverse current. 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 in a thermally enhanced 34-pin ceramic flatpack package. 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. There is also a low-side sinking current protection 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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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. A) 13 Nov 2020
* SMD TPS7H4001-SP SMD 5962-18205 08 Dec 2020
* Radiation & reliability report Single-Event Effects Test Report of the TPS7H4001-SP (Rev. A) 30 Nov 2020
* Radiation & reliability report TPS7H4001-SP Total Ionizing Dose (TID) Radiation Report 25 Nov 2020
* Radiation & reliability report TPS7H4001-SP Neutron Displacement Damage Characterization 27 Apr 2020
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 29 Mar 2021
User guide TPS7H4001-SP Worst Case Analysis Model 03 Mar 2021
Selection guide TI Space Products (Rev. H) 27 Jan 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 30 Jun 2020
Application note How to Modify a 4-Channel TPS7H4001QEVM-CVAL into a 2-Channel EVM (Rev. A) 22 Jun 2020
User guide TPS7H4001QEVM-CVAL Evaluation Module (EVM) User's Guide 28 May 2020
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations 18 May 2020
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form 18 May 2020
Application note How to Modify a 4-Channel TPS7H4001QEVM-CVAL Into a 1-Channel EVM 14 May 2020
User guide TSP7H4001-SP Unencrypted PSpice Average/Transient Model User's Guide 30 Apr 2020
User guide TPS7H4001EVM-CVAL Evaluation Module (EVM) User's Guide 22 Apr 2020
Application note Single-Event Effects Confidence Interval Calculations 14 Jan 2020
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing 17 Jun 2019
E-book Radiation Handbook for Electronics (Rev. A) 21 May 2019
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

Design & development

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

Evaluation board

TPS7H4001EVM-CVAL — 1-channel, 18-A, 3-V to 7-V input, synchronous step-down converter evaluation module

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.

In stock
Limit: 50
Evaluation board

TPS7H4001QEVM-CVAL — 4-channel, 72-A, 3-V to 7-V input, synchronous step-down converter evaluation module

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.

In stock
Limit: 50
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.
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
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 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 (...)
Calculation tool

TPS7H4001-SP Buck Converter Calculator (Rev. B)

SLVRBF7B.ZIP (82 KB)
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