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TPS7H4011-SP

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Radiation-hardened, QMLV, 4.5V to 14V input 12A synchronous step-down converter

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Data sheet

TPS7H4011-SP

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Data sheet Order now

Product details

Rating Space Operating temperature range (°C) 25 to 25 Type Converter Iout (max) (A) 12 Vin (min) (V) 4.5 Vin (max) (V) 14 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Differential Remote Sense, Enable, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Programmable current limit, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 11.5 Duty cycle (max) (%) 100
Rating Space Operating temperature range (°C) 25 to 25 Type Converter Iout (max) (A) 12 Vin (min) (V) 4.5 Vin (max) (V) 14 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Differential Remote Sense, Enable, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Programmable current limit, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 11.5 Duty cycle (max) (%) 100
CFP (HLB) 30 151.23232 mm² 19.28 x 7.844
  • Total ionizing dose (TID) characterized
    • Radiation hardness assurance (RHA) availability of up to 100krad(Si)
  • Single-Event Effects (SEE) characterized
    • Single-event latchup (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune up to linear energy transfer (LET) = 75MeV-cm2/mg
    • Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg
  • Input voltage range from 4.5V to 14V
  • 12A maximum output current
  • High efficiency (typical values for VIN = 12V, VOUT = 3.3V, fSW = 500kHz)
    • 94% at 1A
    • 86% at 9A
    • 82% at 12A
  • Integrated 45mΩ (HS) and 33mΩ (LS) MOSFETs (typ at 12V)
  • Flexible switching frequency options:
    • 100kHz to 1MHz, accurate (±15% or better), adjustable internal oscillator
    • 100kHz to 1MHz external sync capability
    • SYNC pins can be configured 90° out of phase to parallel up to 4 devices
  • 0.6V ± 0.67% voltage reference over line, temperature, and radiation
  • Differential remote sensing
  • Selectable current limit
  • FAULT input pin for flexible fault management
  • 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
  • Supports 5V to –5V inverting buck-boost topology
  • Plastic packages outgas tested per ASTM E595
  • Available in military (–55°C to 125°C) temperature range
  • Total ionizing dose (TID) characterized
    • Radiation hardness assurance (RHA) availability of up to 100krad(Si)
  • Single-Event Effects (SEE) characterized
    • Single-event latchup (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune up to linear energy transfer (LET) = 75MeV-cm2/mg
    • Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg
  • Input voltage range from 4.5V to 14V
  • 12A maximum output current
  • High efficiency (typical values for VIN = 12V, VOUT = 3.3V, fSW = 500kHz)
    • 94% at 1A
    • 86% at 9A
    • 82% at 12A
  • Integrated 45mΩ (HS) and 33mΩ (LS) MOSFETs (typ at 12V)
  • Flexible switching frequency options:
    • 100kHz to 1MHz, accurate (±15% or better), adjustable internal oscillator
    • 100kHz to 1MHz external sync capability
    • SYNC pins can be configured 90° out of phase to parallel up to 4 devices
  • 0.6V ± 0.67% voltage reference over line, temperature, and radiation
  • Differential remote sensing
  • Selectable current limit
  • FAULT input pin for flexible fault management
  • 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
  • Supports 5V to –5V inverting buck-boost topology
  • Plastic packages outgas tested per ASTM E595
  • Available in military (–55°C to 125°C) temperature range

The TPS7H4011 is a 14V, 12A synchronous buck converter optimized for use in a space environment. The peak current mode converter obtains high efficiency with good transient performance and reduced component count.

The wide voltage range of the TPS7H4011 enables it to be used as a point of load regulator to convert directly from a 12V or 5V rail. The output voltage start-up ramp is controlled by the SS_TR pin. Power sequencing is possible with the EN and PWRGD pins.

The device can be configured with up-to four devices in parallel without an external clock for increased current capabilities. Additionally, various features are included such as differential remote sensing, selectable current limit, a flexible fault input pin, and configurable compensation.

The TPS7H4011 is a 14V, 12A synchronous buck converter optimized for use in a space environment. The peak current mode converter obtains high efficiency with good transient performance and reduced component count.

The wide voltage range of the TPS7H4011 enables it to be used as a point of load regulator to convert directly from a 12V or 5V rail. The output voltage start-up ramp is controlled by the SS_TR pin. Power sequencing is possible with the EN and PWRGD pins.

The device can be configured with up-to four devices in parallel without an external clock for increased current capabilities. Additionally, various features are included such as differential remote sensing, selectable current limit, a flexible fault input pin, and configurable compensation.

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Technical documentation

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Type Title Date
* Data sheet TPS7H401 1 -SP and TPS7H401 1 -SEP 4.5V to 14V Input 12 A Radiation Hardened Synchronous Buck Converter datasheet PDF | HTML 19 Apr 2024
* Radiation & reliability report TPS7H4011-SP Total Ionizing Dose (TID) Radiation Report PDF | HTML 24 Apr 2024
EVM User's guide TPS7H4011-SP (TPS7H4011EVM-CVAL) Evaluation Module User's Guide PDF | HTML 12 Apr 2024
Certificate TPS7H4011EVM-CVAL EU Declaration of Conformity (DoC) 21 Feb 2024

Design & development

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Evaluation board

TPS7H4011EVM-CVAL — TPS7H4011-SP evaluation module

The TPS7H4011EVM-CVAL demonstrates the operation of a single TPS7H4011-SP buck converter. The board provides footprints that can be populated with additional components to allow for testing of customized configurations, as well as jumpers and test points for easy device configuration, and (...)

User guide: PDF | HTML
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Calculation tool

TPS7H4011-CALC — TPS7H4011 component calculator

TPS7H4011 component calculator
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AC/DC & DC/DC converters (integrated FET)
TPS7H4011-SP — Radiation-hardened, QMLV, 4.5V to 14V input 12A synchronous step-down converter
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