Calculation tool
TPS7H4011-CALC — TPS7H4011 component calculator
TPS7H4011 component calculator
TPS7H4011-SEP
Radiation-tolerant, 4.5V to 14V input 12A synchronous step-down converter
Data sheet
TPS7H4011-SEP
- 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)
- 91% (CFP), 91% (plastic) at 2A
- 87% (CFP), 88% (plastic) at 9A
- 85% (CFP), 86% (plastic) at 12A
- Integrated HS 45mΩ(CFP)/31mΩ(plastic) and LS 33mΩ(CFP)/27mΩ(plastic) 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% (CFP), ±0.83% (plastic) 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 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.
Technical documentation
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View all 6 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS7H4011-SP and TPS7H4011-SEP 4.5V to 14V Input 12A Radiation Hardened Synchronous Buck Converter datasheet (Rev. B) | PDF | HTML | 27 Apr 2025 |
| * | Radiation & reliability report | TPS7H4011-SEP Preliminary Total Ionizing Dose (TID) Radiation Report | 28 Apr 2025 | |
| EVM User's guide | TPS7H4011EVM Evaluation Module | PDF | HTML | 22 Apr 2025 | |
| Selection guide | TI Space Products (Rev. K) | 04 Apr 2025 | ||
| Application note | Reduce the Risk in Low-Earth Orbit Missions with Space Enhanced Plastic Products (Rev. A) | PDF | HTML | 15 Sep 2022 | |
| E-book | Radiation Handbook for Electronics (Rev. A) | 21 May 2019 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPS7H4011EVM — TPS7H4011-SEP and QMLP evaluation module for 4.5V to 14V input 12A synchronous step-down converter
The TPS7H4011 evaluation module (EVM) demonstrates the operation of a single TPS7H4011-SEP buck converter (plastic package). 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 (...)
Evaluation board
TPS7H4011QEVM-CVAL — TPS7H4011-SP evaluation module
The TPS7H4011QEVM-CVAL demonstrates the parallel, quadrature phase operation of four TPS7H4011-SP buck converters (ceramic package). The evaluation module provides footprints that can be populated with additional components to allow for testing of customized configurations, as well as test points (...)
Reference designs
TIDA-010274 — Space-grade discrete RF sampling transceiver reference design
This reference design incorporates a 10 GSPS dual digital-to-analog converter and a 5 GSPS dual analog-to-digital converter with active baluns on the RF interface supporting up through X-band. The design also incorporates a space-grade clocking daughter card and a space-grade power solution (...)
Design guide: PDF
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (DDW) | 44 | Ultra Librarian |
Ordering & quality
Information included:
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Information included:
- Fab location
- Assembly location
Support & training
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