TPS50601-SP

Name: TPS50601-SP
Brand: TI
SKU: TPS50601-SP
Price: 2684.979 USD

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Radiation-hardened QMLV, 3-V to 6.3-V input, 6-A synchronous step-down converter

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Data sheet

document-pdfAcrobat TPS50601-SP Radiation Hardened 1.6- to 6.3-V Input, 6-A Synchronous Buck Converter datasheet PDF | HTML

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TPS50601A-SP

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Radiation-hardened QMLV, 3-V to 7-V input, 6-A synchronous step-down converter Improved SEE radiation performance, improved voltage reference and wider VIN support.

TPS50601-SP

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Data sheet

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Product details

Rating

Space

Topology

Buck

Iout (max) (A)

6

Vin (max) (V)

6.3

Vin (min) (V)

3

Vout (max) (V)

6.35

Vout (min) (V)

0.795

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

Switching frequency (min) (kHz)

100

Switching frequency (max) (kHz)

1000

Operating temperature range (°C)

-55 to 125

Iq (typ) (µA)

5000

Duty cycle (max) (%)

95

Type

Converter

Rating

Space

Topology

Buck

Iout (max) (A)

6

Vin (max) (V)

6.3

Vin (min) (V)

3

Vout (max) (V)

6.35

Vout (min) (V)

0.795

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

Switching frequency (min) (kHz)

100

Switching frequency (max) (kHz)

1000

Operating temperature range (°C)

-55 to 125

Iq (typ) (µA)

5000

Duty cycle (max) (%)

95

Type

Converter

CFP (HKH)

20

93.726 mm² 12.7 x 7.38

DIESALE (KGD)

—

See data sheet

5962R10221:
- Radiation Hardness Assurance (RHA) up to TID 100 krad (Si)
- ELDRS Free 100 krad (Si) – 10 mRAD(Si)/s
- Single Event Latchup (SEL) Immune to
  LET = 85 MeV-cm²/mg (See Radiation Report, http://www.ti.com/radiation)
- SEB and SEGR Immune to 85 MeV-cm²/mg, SOA Curve Available (See Radiation Report)
- SET/SEFI Cross-Section Plot Available (See Radiation Report)
Peak Efficiency: 95% (V_O = 3.3 V)
Integrated 55-mΩ/50-mΩ MOSFETs
Split Power Rail: 1.6 to 6.3 V on PVIN
Power Rail: 3 to 6.3 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
0.795-V ±1.258% Voltage Reference at 25°C
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 Thermally-Enhanced Ceramic Flatpack Package (HKH)
See www.ti.com/swift for SWIFT Documentation
See the Tools & Software Tab

5962R10221:
- Radiation Hardness Assurance (RHA) up to TID 100 krad (Si)
- ELDRS Free 100 krad (Si) – 10 mRAD(Si)/s
- Single Event Latchup (SEL) Immune to
  LET = 85 MeV-cm²/mg (See Radiation Report, http://www.ti.com/radiation)
- SEB and SEGR Immune to 85 MeV-cm²/mg, SOA Curve Available (See Radiation Report)
- SET/SEFI Cross-Section Plot Available (See Radiation Report)
Peak Efficiency: 95% (V_O = 3.3 V)
Integrated 55-mΩ/50-mΩ MOSFETs
Split Power Rail: 1.6 to 6.3 V on PVIN
Power Rail: 3 to 6.3 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
0.795-V ±1.258% Voltage Reference at 25°C
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 Thermally-Enhanced Ceramic Flatpack Package (HKH)
See www.ti.com/swift for SWIFT Documentation
See the Tools & Software Tab

The TPS50601-SP is a radiation hardened, 6.3-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 a thermally enhanced 20-pin ceramic, dual in-line 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.

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 TPS50601-SP is a radiation hardened, 6.3-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 a thermally enhanced 20-pin ceramic, dual in-line 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.

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	TPS50601-SP Radiation Hardened 1.6- to 6.3-V Input, 6-A Synchronous Buck Converter datasheet	PDF \| HTML	05 Dec 2015
*	Radiation & reliability report	TPS50601-SP Total Ionizing Dose (TID) Radiation Report (Rev. A)		02 Feb 2022
*	Radiation & reliability report	TPS50601-SP Neutron Displacement Damage Characterization (Rev. A)		29 Mar 2019
*	Radiation & reliability report	TPS50601-SP Synchronous Step-Down Converter Single-Event Effects Summary (Rev. A)		11 Dec 2017
*	Radiation & reliability report	TPS50601-SP Total Ionizing Dose (TID) Radiation Report		08 Jul 2016
*	SMD	TPS50601-SP SMD 5962-10221		21 Jun 2016
	Application note	Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form (Rev. A)	PDF \| HTML	05 Nov 2025
	Application brief	DLA Approved Optimizations for QML Products (Rev. C)	PDF \| HTML	17 Jun 2025
	Application note	Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B)	PDF \| HTML	10 Jun 2025
	Selection guide	TI Space Products (Rev. K)		04 Apr 2025
	More literature	TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B)		20 Feb 2025
	Application note	QML flow, its importance, and obtaining lot information (Rev. C)		30 Aug 2023
	Application note	TI Space Rated Power Solution for Microsemi® RTG4™ FPGA (Rev. B)	PDF \| HTML	19 Jan 2023
	Application note	Single-Event Effects Confidence Interval Calculations (Rev. A)	PDF \| HTML	19 Oct 2022
	Application brief	Why Radiation Hardness Matters for Point-of-Load Converters	PDF \| HTML	13 Jan 2022
	Application note	DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer		21 Aug 2020
	Application note	TPS50601x-SP Comparison Guide (Rev. A)	PDF \| HTML	06 Apr 2020
	E-book	Radiation Handbook for Electronics (Rev. A)		21 May 2019
	Technical article	7 things to know about spacecraft subsystems before your next trip to Mars	PDF \| HTML	06 Jul 2016

Design & development

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

Evaluation board

TPS50601SPEVM-D — TPS50601-SP dual-operation evaluation module

The TPS50601-SP DC/DC converter is designed to provide up to a 6-A output in single phase operation (TPS50601SPEVM-S) and up to 12 A in dual phase operation (TPS50601SPEVM-D), when each phase is configured to provide 6-A per phase.

TPS50601SPEVM-D can also be configured such that each phase (...)

User guide: PDF

Not available on TI.com

Evaluation board

TPS50601SPEVM-S — TPS50601-SP single-operation evaluation module

The TPS50601-SP DC/DC converter is designed to provide up to a 6-A output in single phase operation (TPS50601SPEVM-S) and up to 12 A in dual phase operation (TPS50601SPEVM-D), when each phase is configured to provide 6-A per phase.

TPS50601SPEVM-D can also be configured such that each phase (...)

User guide: PDF