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TPS7H1121-SEP

現行

Radiation-tolerant, 2.25V to 14V input, 2A low-dropout (LDO) regulator

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產品規格表

TPS7H1121-SEP

現行
產品規格表 立即訂購

產品詳細資料

Rating Space Vin (max) (V) 14 Vin (min) (V) 2.25 Iout (max) (A) 2 Output options Adjustable Output Vout (max) (V) 13.2 Vout (min) (V) 0.6 Fixed output options (V) 0 Noise (µVrms) 4 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 10 Features Adjustable current limit, Enable, Power good, Soft start Thermal resistance θJA (°C/W) 30.5 Load capacitance (min) (µF) 6.8 Regulated outputs (#) 1 Accuracy (%) 1.5 Dropout voltage (Vdo) (typ) (mV) 400 Operating temperature range (°C) -55 to 125 Radiation, SEL (MeV·cm2/mg) 43 Radiation, TID (typ) (krad) 50
Rating Space Vin (max) (V) 14 Vin (min) (V) 2.25 Iout (max) (A) 2 Output options Adjustable Output Vout (max) (V) 13.2 Vout (min) (V) 0.6 Fixed output options (V) 0 Noise (µVrms) 4 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 10 Features Adjustable current limit, Enable, Power good, Soft start Thermal resistance θJA (°C/W) 30.5 Load capacitance (min) (µF) 6.8 Regulated outputs (#) 1 Accuracy (%) 1.5 Dropout voltage (Vdo) (typ) (mV) 400 Operating temperature range (°C) -55 to 125 Radiation, SEL (MeV·cm2/mg) 43 Radiation, TID (typ) (krad) 50
HTSSOP (PWP) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • Total Ionizing Dose radiation characterized:

    • Radiation hardness assurance (RHA) availability of 100krad(Si) or 50krad(Si)

  • Single-Event Effects (SEE) Characterized
    • Single-event latch-up (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune to linear energy transfer (LET) = 75MeV-cm2/mg
    • Single-event functional interrupt (SEFI) characterized to LET = 75MeV-cm2/mg
    • Single-event transient (SET) characterized to LET = 75MeV-cm2/mg
  • Wide VIN range: 2.25V to 14V
  • 2A maximum output current
  • ±1.5% accuracy VIN > 3V over load, and temperature
  • ±1.8% accuracy VIN < 3V over load, and temperature
  • Soft start (SS) control through an external capacitor
  • Open-drain power good (PG) output for power sequencing
  • Programmable current limit through an external resistor (CL)
  • Optional external control loop compensation utilizing the STAB pin
  • Excellent load and line transient response
  • Plastic packages out gas tested per ASTM E595
  • Military (–55°C to 125°C) temperature range
  • Total Ionizing Dose radiation characterized:

    • Radiation hardness assurance (RHA) availability of 100krad(Si) or 50krad(Si)

  • Single-Event Effects (SEE) Characterized
    • Single-event latch-up (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune to linear energy transfer (LET) = 75MeV-cm2/mg
    • Single-event functional interrupt (SEFI) characterized to LET = 75MeV-cm2/mg
    • Single-event transient (SET) characterized to LET = 75MeV-cm2/mg
  • Wide VIN range: 2.25V to 14V
  • 2A maximum output current
  • ±1.5% accuracy VIN > 3V over load, and temperature
  • ±1.8% accuracy VIN < 3V over load, and temperature
  • Soft start (SS) control through an external capacitor
  • Open-drain power good (PG) output for power sequencing
  • Programmable current limit through an external resistor (CL)
  • Optional external control loop compensation utilizing the STAB pin
  • Excellent load and line transient response
  • Plastic packages out gas tested per ASTM E595
  • Military (–55°C to 125°C) temperature range

The TPS7H1121 is a radiation-hardened, low dropout linear regulator (LDO) which operates over a wide input voltage range and is optimized for powering devices in a space environment. The device is capable of sourcing up to 2A over a 2.25V to 14V input.

The device offers excellent stability and features a programmable current limit with a wide adjustment range. To support the complex power requirements of FPGAs, DSPs, and microcontrollers, the TPS7H1121 provides enable on and off functionality, programmable soft start, and a power good open-drain output.

The TPS7H1121 is a radiation-hardened, low dropout linear regulator (LDO) which operates over a wide input voltage range and is optimized for powering devices in a space environment. The device is capable of sourcing up to 2A over a 2.25V to 14V input.

The device offers excellent stability and features a programmable current limit with a wide adjustment range. To support the complex power requirements of FPGAs, DSPs, and microcontrollers, the TPS7H1121 provides enable on and off functionality, programmable soft start, and a power good open-drain output.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS7H1121-SP and TPS7H1121-SEP 2.25V to 14V Input, 2A, Radiation Hardened Low Dropout (LDO) Linear Regulator datasheet (Rev. C) PDF | HTML 2025/11/3
* 輻射及可靠性報告 TPS7H1121-SP Total Ionizing Dose (TID) Radiation Report (Rev. A) 2026/2/13
* 輻射及可靠性報告 TPS7H1121-SEP Neutron Displacement Damage (NDD) Characterization 2025/12/5
* 輻射及可靠性報告 TPS7H1121-SEP Production Flow and Reliability Report (Rev. A) PDF | HTML 2025/10/31
* 輻射及可靠性報告 TPS7H1121-SEP Total Ionizing Dose (TID) Radiation Report 2025/10/16
* 輻射及可靠性報告 TPS7H1121-SEP Single-Event Effects (SEE) PDF | HTML 2025/10/15
* VID TPS7H1121-SEP VID TPS7H1121-SEP VID V62/23604 2026/3/4
白皮書 IC Sourcing for Space: Pros and Cons of Up-screening COTS Versus Space Enhanced Products (SEP) PDF | HTML 2026/7/28
應用說明 Highly Scalable Space Motor Control Platform based on TI’s Space Enhanced Products (-SEP) and Space Products PDF | HTML 2026/6/8
選擇指南 TI Space Products (Rev. L) 2026/3/27
證書 TPS7H1121EVM EU Declaration of Conformity (DoC) 2025/6/12
技術文章 航太級強化產品如何因應低地球軌道應用的挑戰 (Rev. A) PDF | HTML Download English Version (Rev.A) PDF | HTML 2024/1/11
應用說明 Reduce the Risk in Low-Earth Orbit Missions with Space Enhanced Plastic Products (Rev. A) PDF | HTML 2022/9/15
電子書 Radiation Handbook for Electronics (Rev. A) 2019/5/21

設計與開發

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開發板

TPS7H1121EVM — 適用於 2.25V 至 14V 輸入、2A 低壓差 (LDO) 穩壓器的 TPS7H1121-SEP 和 QMLP 評估模組

TPS7H1121EVM 展示單一 TPS7H1121-SEP LDO 穩壓器（塑膠封裝）的運作。電路板提供可裝入其他元件的元件封裝，以便進行自訂配置測試，並提供測試點和 SMA 連接器，以簡化性能驗證。

使用指南: PDF | HTML
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TPS7H1121-SP PSpice Model

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參考設計

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