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TPS50601A-SP

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Radiation-hardness-assured (RHA), 3-V to 7-V input, 6-A synchronous step-down converter

Data sheet
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Radiation-hardness-assured (RHA), 3-V to 7-V input, 6-A synchronous step-down converter

TPS50601A-SP

ACTIVE
Data sheet Order now

Product details

Parameters

Vin (Min) (V) 3 Vin (Max) (V) 7 Vout (Min) (V) 0.804 Vout (Max) (V) 6.7 Iout (Max) (A) 6 Iq (Typ) (uA) 5000 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 Military, Space Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

CFP (HKH) 20 94 mm² 12.7 x 2.9 open-in-new Find other Buck converters (integrated switch)

Features

  • 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

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Description

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

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS50601A-SP Radiation Hardened 3-V to 7-V Input, 6-A Synchronous Buck Converter datasheet (Rev. D) Feb. 21, 2019
* Radiation & reliability report TPS50601A-SP Total Ionizing Dose (TID) Radiation Report (Rev. B) May 30, 2019
* Radiation & reliability report Single-Event Effects Test Report of the TPS50601A-SP Synch Step-Down Converter (Rev. A) Feb. 05, 2019
* Radiation & reliability report TPS50601A-SP (5962R1022102VSC) Neutron Displacement Damage Characterization (Rev. A) Jul. 24, 2018
* SMD TPS50601A-SP SMD 5962-10221 Jun. 21, 2016
Selection guide TI Space Products (Rev. H) Jan. 27, 2021
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer Aug. 21, 2020
User guide TPS50601A-SP Worst Case Analysis Unencrypted PSpice Average Model User's Guide (Rev. A) Jun. 18, 2020
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations May 18, 2020
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form May 18, 2020
Application note Failure Containment in Spacecraft Point-of-Load Power Supplies Apr. 30, 2020
Application note TPS50601x-SP Comparison Guide (Rev. A) Apr. 06, 2020
Application note TPS50601A-SP Small Form Factor Buck Converter Apr. 01, 2020
Technical articles 4 trends in space-grade power management in 2020 Feb. 12, 2020
Application note 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
E-book Preview: Radiation Handbook for Electronics (Rev. A) Jun. 07, 2019
E-book Radiation Handbook for Electronics (Rev. A) May 21, 2019
Technical articles When failure isn’t an option: power up your next satellite with integrated functionality and protection Apr. 29, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
User guide TPS50601A-SP dual regulator evaluation module (EVM) Feb. 15, 2019
User guide TSW12D1620EVM-CVAL User's Guide (Rev. A) Jan. 29, 2019
Application note TI Space Rated Power Solution for Microsemi® RTG4™ FPGA (Rev. A) Jul. 27, 2018
User guide TPS50601ASPEVM 6-A Regulator Evaluation Module Sep. 26, 2017

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
Description

The ADC12DJ3200EVMCVAL is an evaluation module (EVM) that evaluates the ADC12DJ3200QML-SP device. ADC12DJ3200QML-SP is a space-grade, low-power, 12-bit, dual 3.2-GSPS/single 6.4-GSPS, RF-sampling analog-to-digital converter (ADC) with a buffered analog input, integrated digital down converter (...)

Features
  • Flexible transformer-coupled analog input to allow for a variety of sources and frequencies
  • Easy-to-use software GUI to configure ADC12DJ3200QML-SP, LMX2582, and LMK04832 devices for a variety of configurations through a USB interface
  • Quickly evaluate ADC performance through high-speed data converter (...)
View details
EVALUATION BOARD Download
document-generic User guide
1249
Description

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.  The device offers optimum electrical and radiation performance in a very small, thermally (...)

Features
  • Radiation Hardened synchronous step down converter with thermally enhanced package
  • Current mode control with cycle by cycle current limiting
  • Configurable switching frequency from 100 kHz to 1 MHz
  • ±1.5% accurate internal voltage reference
  • Adjustable soft start through external capacitor
View details
EVALUATION BOARD Download
document-generic User guide
999
Description
The TPS50601A-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 (...)
Features
  • Radiation Hardened syncheronous step down converter with thermally enhanced package
  • Current mode control with cycle by cycle current limiting.
  • Split input voltage Vin for logic circuitary and PVIN for Mosfet
  • Flexible switching frequency from 100kHz to 1Mhz
  • Adjustable soft start through external (...)
View details
EVALUATION BOARD Download
document-generic User guide
10699
Description

The TSW12D1620EVM-CVAL is a 1.5-GHz wideband receiver evaluation module (EVM) that includes ceramic engineering models of the amplifier, analog-to-digital converter (ADC), clocking, temperature sensor, microcontroller, and power solution. The board is best suited for (...)

Features
  • Complete TI space-rated signal-chain and power wideband receiver solution
    • Wideband ADC12D1620QML-SP (12-bit, dual 3.2 GSPS or single 6.4 GSPS)
    • Wideband fully-differential amplifier LMH5401-SP (6.5-GHz bandwidth)
    • Remote-diode ADC temperature-monitoring TMP461-SP
    • Power management (TPS50601A-SP (...)
View details
DEVELOPMENT KIT 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.
View details

Design tools & simulation

SIMULATION MODEL Download
SLVMCL3B.ZIP (32 KB) - PSpice Model
SIMULATION MODEL Download
SLVMCL4A.ZIP (20 KB) - PSpice Model
SIMULATION MODEL Download
SLVMCM3.ZIP (5 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLVMCM4.TSC (584 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVMCN0.ZIP (14 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLVMCN1.TSC (855 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVMCN2.TSC (855 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVMDC2.ZIP (43 KB) - PSpice Model
SIMULATION TOOL 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
  • (...)
View details
CALCULATION TOOL Download
SLVRBG4.ZIP (103 KB)

Reference designs

REFERENCE DESIGNS Download
3- to 7-VIN, Space-grade point-of-load (POL) reference design with redundant eFuse inputs for OCP
TIDA-070001 — Redundancy is often employed in spacecraft applications to enhance reliability, this reference design shows how redundancy can be implemented at the input of a Point-of-Load (POL) supply using two TPS7H2201-SP radiation hardened eFuse load switches. Using two load switches allows for a primary and (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
3- to 7-VIN, 24-A IOUT, 0.95-VOUT, Space-grade current sharing point-of-load (POL) reference design
TIDA-070005 — This is a 24-A DC/DC space power hardware reference design.

As FPGA and ASIC technology advances, the core voltage requirements get lower but the current demand is larger. The newest space grade FPGAs and ASICS require low voltage and high currents for their core power consumption. These high current (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
(KGD) 0 View options
CFP (HKH) 20 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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