TPS50601A-SP

ACTIVE

Radiation-hardened QMLV, 3-V to 7-V input, 6-A synchronous step-down converter

TPS50601A-SP

ACTIVE

Product details

Rating Space Operating temperature range (°C) -55 to 125 Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 7 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 Control mode current mode Vout (min) (V) 0.804 Vout (max) (V) 6.7 Iq (typ) (µA) 5000 Duty cycle (max) (%) 100
Rating Space Operating temperature range (°C) -55 to 125 Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 7 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 Control mode current mode Vout (min) (V) 0.804 Vout (max) (V) 6.7 Iq (typ) (µA) 5000 Duty cycle (max) (%) 100
CFP (HKH) 20 93.726 mm² 12.7 x 7.38 DIESALE (KGD) See data sheet
  • 5962-10221:
    • Radiation hardened up to TID 100 krad(Si)
    • ELDRS free 100 krad(Si) – 10 mrad(Si)/s
    • Single lhup (SEL) Immune to
      LET = 75 MeV-cm2/mg
    • SEB and SEGR immune to 75 MeV-cm2/mg, SOA Curve Available
    • SET/SEFI Cross-section plot available
  • peak efficiency: 96.6% (VO = 3.3 V)
  • Integrated 58-mΩ/50-mΩ MOSFETs
  • Power rail: 3 to 7 V on VIN
  • 6-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 master/slave applications
  • 0.804-V ±1.5% Voltage reference overtemperature, 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
  • 5962-10221:
    • Radiation hardened up to TID 100 krad(Si)
    • ELDRS free 100 krad(Si) – 10 mrad(Si)/s
    • Single lhup (SEL) Immune to
      LET = 75 MeV-cm2/mg
    • SEB and SEGR immune to 75 MeV-cm2/mg, SOA Curve Available
    • SET/SEFI Cross-section plot available
  • peak efficiency: 96.6% (VO = 3.3 V)
  • Integrated 58-mΩ/50-mΩ MOSFETs
  • Power rail: 3 to 7 V on VIN
  • 6-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 master/slave applications
  • 0.804-V ±1.5% Voltage reference overtemperature, 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 TPS50601A-SP is a radiation hardened, 7-V, 6-A synchronous step-down converter, which is optimized for small designs through high efficiency and 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, reducing the inductor’s footprint. The devices are offered in an ultra small, thermally enhanced 20-pin ceramic flatpack package.

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 TPS50601A-SP can be configured in master-slave mode to provide up to 12-A of output current.

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 shutdown temperature.

The TPS50601A-SP is a radiation hardened, 7-V, 6-A synchronous step-down converter, which is optimized for small designs through high efficiency and 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, reducing the inductor’s footprint. The devices are offered in an ultra small, thermally enhanced 20-pin ceramic flatpack package.

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 TPS50601A-SP can be configured in master-slave mode to provide up to 12-A of output current.

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 shutdown temperature.

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Technical documentation

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Type Title Date
* Data sheet TPS50601A-SP Radiation Hardened 3-V to 7-V Input, 6-A Synchronous Buck Converter datasheet (Rev. D) PDF | HTML 21 Feb 2019
* Radiation & reliability report TPS50601A-SP Total Ionizing Dose (TID) Radiation Report (Rev. B) 30 May 2019
* Radiation & reliability report TPS50601A-SP Single-event Effects (SEE) Test Report (Rev. A) 05 Feb 2019
* Radiation & reliability report TPS50601A-SP Neutron Displacement Damage (NDD) Characterization Report (Rev. A) 24 Jul 2018
* SMD TPS50601A-SP SMD 5962-10221 21 Jun 2016
Application brief DLA Approved Optimizations for QML Products (Rev. B) PDF | HTML 23 Oct 2024
Selection guide TI Space Products (Rev. J) 12 Feb 2024
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 RTAX-S/SL FPGA PDF | HTML 29 Sep 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
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 21 Aug 2020
User guide TPS50601A-SP Worst Case Analysis Unencrypted PSpice Average Model User's Guide (Rev. A) PDF | HTML 18 Jun 2020
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form PDF | HTML 18 May 2020
Application note Failure Containment in Spacecraft Point-of-Load Power Supplies 30 Apr 2020
Application note TPS50601x-SP Comparison Guide (Rev. A) PDF | HTML 06 Apr 2020
Application note TPS50601A-SP Small Form Factor Buck Converter 01 Apr 2020
Technical article 4 trends in space-grade power management PDF | HTML 12 Feb 2020
E-book Radiation Handbook for Electronics (Rev. A) 21 May 2019
Technical article When failure isn’t an option: power up your next satellite with integrated functio PDF | HTML 30 Apr 2019
User guide TPS50601A-SP dual regulator evaluation module (EVM) 15 Feb 2019
User guide TSW12D1620EVM-CVAL User's Guide (Rev. A) 29 Jan 2019

Design & development

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Simulation model

TPS50601A SIMPLIS Model

SLVME37.ZIP (19 KB) - SIMPLIS Model
Simulation model

TPS50601A-SP PSpice Model (Rev. A)

SLVMCL4A.ZIP (20 KB) - PSpice Model
Simulation model

TPS50601A-SP PSpice Transient Model (Rev. C)

SLVMCL3C.ZIP (289 KB) - PSpice Model
Simulation model

TPS50601A-SP TINA-TI Average Reference Design

SLVMCM4.TSC (584 KB) - TINA-TI Reference Design
Simulation model

TPS50601A-SP TINA-TI Average Spice Model

SLVMCM3.ZIP (5 KB) - TINA-TI Spice Model
Simulation model

TPS50601A-SP TINA-TI Startup Transient Reference Design

SLVMCN2.TSC (855 KB) - TINA-TI Reference Design
Simulation model

TPS50601A-SP TINA-TI Steady State Transient Reference Design

SLVMCN1.TSC (855 KB) - TINA-TI Reference Design
Simulation model

TPS50601A-SP TINA-TI Transient Spice Model

SLVMCN0.ZIP (14 KB) - TINA-TI Spice Model
Simulation model

TPS50601A-SP Worst Case Analysis Unencrypted PSpice Average Model

SLVMDC2.ZIP (43 KB) - PSpice Model
Calculation tool

SLVRBG4 TPS50601A-SP Buck Converter Calculator

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS50601A-SP Radiation-hardened QMLV, 3-V to 7-V input, 6-A synchronous step-down converter
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Schematic: PDF
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Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
CFP (HKH) 20 Ultra Librarian
DIESALE (KGD)

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