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TPS7H4001-SP

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Radiation-hardness-assured (RHA), 3-V to 7-V input, 18-A, synchronous step-down converter

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Radiation-hardness-assured (RHA), 3-V to 7-V input, 18-A, synchronous step-down converter

TPS7H4001-SP

ACTIVE

Product details

Parameters

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 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 open-in-new Find other Buck converters (integrated switch)

Features

  • Radiation performance:
    • Radiation-hardness-assured up to
      TID 100 krad(Si)
      (RHA qualification in progress)
    • 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

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Description

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 and 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 master-slave 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 low-side sinking current protection that turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds the thermal limit.

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Technical documentation

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Type Title Date
* Datasheet TPS7H4001-SP Radiation-Hardness-Assured 3-V to 7-V Input 18-A Synchronous Buck Converter datasheet Apr. 21, 2020
* Radiation & Reliability reports TPS7H4001-SP Single-Event Effects Test Report Apr. 29, 2020
* Radiation & Reliability reports TPS7H4001-SP Total Ionizing Dose (TID) Lookahead Apr. 29, 2020
* Radiation & Reliability reports TPS7H4001-SP Neutron Displacement Damage Characterization Apr. 27, 2020
Application notes DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer Aug. 21, 2020
Application notes How to Modify a 4-Channel TPS7H4001QEVM-CVAL into a 3-Channel EVM Jun. 30, 2020
Application notes How to Modify a 4-Channel TPS7H4001QEVM-CVAL into a 2-Channel EVM (Rev. A) Jun. 22, 2020
User guides TPS7H4001QEVM-CVAL Evaluation Module (EVM) User's Guide May 28, 2020
Application notes Heavy Ion Orbital Environment Single-Event Effects Estimations May 18, 2020
Application notes Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form May 18, 2020
Application notes How to Modify a 4-Channel TPS7H4001QEVM-CVAL Into a 1-Channel EVM May 14, 2020
More literature TPS7H4001-SP Material Content Report May 07, 2020
User guides TSP7H4001-SP Unencrypted PSpice Average/Transient Model User's Guide Apr. 30, 2020
User guides TPS7H4001EVM-CVAL Evaluation Module (EVM) User's Guide Apr. 22, 2020
Application notes Single-Event Effects Confidence Interval Calculations Jan. 14, 2020
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing Jun. 17, 2019
White papers Preview: Radiation Handbook for Electronics (Rev. A) Jun. 07, 2019
White papers Radiation Handbook for Electronics (Rev. A) May 21, 2019
Selection guides TI Space Products (Rev. G) May 15, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
1499
Description

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.

Features
  • Evaluates TPS7H4001-SP radiation-hardness-assured (RHA) 18-A POL buck converter for space applications
  • VIN range: 3 V to 7 V
  • Output: up to 18 A at 1 V
  • Low output-voltage ripple
EVALUATION BOARDS Download
document-generic User guide
2999
Description

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.

Features
  • Evaluates TPS7H4001-SP radiation-hardness-assured (RHA) 18-A point-of-load (POL) buck converter for space applications
  • VIN range: 3 V to 7 V
  • Output: up to 72 A at 1 V
  • Low output-voltage ripple
DEVELOPMENT KITS Download
Description
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.

Design tools & simulation

SIMULATION MODELS Download
SLVMD56A.ZIP (144 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLVMD57A.ZIP (168 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLVMD62A.ZIP (27 KB) - PSpice Model
SIMULATION MODELS Download
SLVMD63A.ZIP (36 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOLS Download
SLVRBF7.ZIP (84 KB)

CAD/CAE symbols

Package Pins Download
(HKY) 34 View options
(KGD) 0 View options

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