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TPS50601A-SP

ACTIVE

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

TPS50601A-SP

ACTIVE

Product details

Vin (min) (V) 3 Vin (max) (V) 7 Vout (min) (V) 0.804 Vout (max) (V) 6.7 Iout (max) (A) 6 Iq (typ) (mA) 5 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) 0.804 Vout (max) (V) 6.7 Iout (max) (A) 6 Iq (typ) (mA) 5 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 (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 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
Selection guide TI Space Products (Rev. I) 03 Mar 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
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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
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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

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Calculation tool

SLVRBG4 TPS50601A-SP Buck Converter Calculator

Supported products & hardware

Supported products & hardware

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Buck converters (integrated switch)
TPS50601A-SP Radiation-hardened QMLV, 3-V to 7-V input, 6-A synchronous step-down converter
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Design guide: PDF
Schematic: PDF
Package Pins Download
CFP (HKH) 20 View options
DIESALE (KGD)

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