Product overview
概要
The LEOPOL1 is a single-phase, step-down monolithic switching regulator with high-precision internal voltage reference and integrated power MOSFETs for synchronous conversion able to provide, at ground level (no single effect events), up to 7 A with up to 12-volt power supply, and up to 5 A from a 5.5 volt supply in a radiative environment up to 62 MeV.cm²/mg.
The LEOPOL1 can operate over a large temperature range of -40 °C to +125 °C. Designed using a BCD Silicon-On-Insulator (SOI) technology, it features an intrinsic radiation hardness, further enhanced through hardening by design, optimized to meet the radiation hardness required for Low Earth Orbit space crafts at an effective cost. Its PowerSO-36 package features a slug-down pad allowing a very low thermal resistance for a superior dissipation including in the absence of convection. It uses golden bonding and NiPdAl-lead-finishing to prevent whiskers. It complies with ASTM-E-595 and ESCC-Q-ST-70-02C outgassing standards for parts to be used in a vacuum.
The LEOPOL1 is compliant with the ST LEO generic specification, for space-ready rad-hard plastic products. This AEC-Q100 based specification offers radiation hardness and the capability to support large quantities, together with a trade-off optimized for LEO space crafts between quality assurance and cost of ownership (details on the ST LEO generic specification can be found in TN1432).
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All features
- Operating input voltage from 3 V to 12 V
- Output current @ 5.5 V up to 62 MeV.cm²/mg: 5 A
- Output voltage range: 0.8 V to 0.85 x Vin
- Configurable soft-start
- Current sharing with multiple devices
- Out-of-phase synchronization
- Full protection set: overtemperature, overcurrent, overvoltage
- Undervoltage lockout
- High dissipation PowerSO-36 package: Rthjc < 2 °C/W
- Operating temperature range: -40 to +125 °C
- Compliant with ST’s LEO specification, including
- Wisker free Nickel/Palladium/Gold lead finishing
- Gold wires
- Characterized outgassing: RML < 1% - CVCM < 0.1%
- Target radiation performance:
- 50 krad(Si) Total Ionizing Dose
- TNID immune at 3.1011 proton/cm²
- SEL free up to 62 MeV.cm²/mg
EDA Symbols, Footprints and 3D Models
STMicroelectronics - LEOPOL1
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すべてのリソース
| Resource title | Version | Latest update | Actions | Details | ダウンロード |
|---|
SIMPLIS models (1)
| Resource title | Version | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| ZIP | 2025.12 | 09 Dec 2025 | 09 Dec 2025 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHSコンプライアンスグレード | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| LEOPOL1PDT | Active 交換品交換品 | PowerSO 36 | Industrial | N/A | - | - |
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
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Sample & Buy
| Part Number | 製品ステータス | Budgetary Price (US$)*/Qty | STから購入 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | Package: Product Marking | Quality Level | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | |||||||||||||||
| LEOPOL1PDT | | | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください |
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LEOPOL1PDT Active
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
（*）概算用の参考価格（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。