TPS7H4012-SP
- 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
- 6A (TPS7H4012)or 3A (TPS7H4013) maximum output current
- High efficiency (typical values for VIN = 12V, VOUT = 3.3V, fSW = 500kHz)
- 88% at 1A
- 92% at 3A
- 91% at 6A
- Integrated 33mΩ (HS) and 27mΩ (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
- 0.6V ± 0.83% voltage reference over line, temperature, and radiation
- Supports 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 TPS7H401x devices are 14V synchronous buck converters optimized for use in a space environment. The TPS7H4012 is a 6A device and the TPS7H4013 is a 3A device. The peak current mode converter obtains high efficiency with good transient performance and reduced component count.
The wide voltage range of the TPS7H401x 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.
Additionally, various features are included such as an optimized current limit for each device, a flexible switching frequency, and configurable compensation.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | TPS7H401x-SP and TPS7H401x-SEP 4.5V to 14V Input, 3A and 6A, Radiation Hardened Synchronous Buck Converter datasheet (Rev. B) | PDF | HTML | 2026年 4月 6日 |
| * | Radiation & reliability report | TPS7H4012-SP (QMLP) Total Ionizing Dose (TID) Radiation Report (Rev. A) | 2026年 3月 9日 | |
| * | Radiation & reliability report | TPS7H4012 Plastic Neutron Displacement Damage (NDD) Characterization Report (Rev. A) | 2025年 12月 8日 | |
| * | Radiation & reliability report | TPS7H4012-SP and TPS7H4013-SP Single-Event Effects (SEE) | PDF | HTML | 2025年 10月 13日 |
| Selection guide | TI Space Products (Rev. L) | 2026年 3月 27日 |
設計與開發
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TPS7H4012EVM — TPS7H4012-SEP 評估模組
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