Single Phase Solution Capable of 12A Max Load Current
The ISL70002SEHEVAL1Z evaluation board is used to evaluate the features of the ISL70002SEH radiation hardened and SEE hardened 22A synchronous buck regulator IC with...
Radiation Hardened and SEE Hardened 22A Synchronous Buck Regulator with Current Sharing
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概览
简介
The ISL70002SEH is a radiation hardened and SEE hardened high-efficiency monolithic, synchronous buck regulator with integrated MOSFETs. This single-chip power solution operates over an input voltage range of 3V to 5.5V and provides a tightly regulated output voltage that is externally adjustable from 0.8V to ~85% of the input voltage. Output load current capability is primarily determined by PVIN voltage with up to 22A for a single IC at PVIN ≤ 5. 5V for TJ ≤ +125°C. Two ISL70002SEH devices, configured to current share, can provide up to 38A of total output current at PVIN ≤ 5. 5V for TJ ≤ +125 °C assuming ±27% worst-case current share accuracy. The ISL70002SEH uses peak current-mode control with integrated error amp compensation and pin-selectable slope compensation. Switching frequency is also pin selectable to either 1MHz or 500kHz. Two devices can be synchronized 180° out-of-phase to reduce input RMS ripple current. High integration makes the ISL70002SEH an ideal choice to power small form factor applications. Two devices can be synchronized to provide a complete power solution for large-scale digital ICs, like field-programmable gate arrays (FPGAs) that require separate core and I/O voltages.
特性
- DLA SMD 5962-12202
- Maximum output current (Single Phase):
- 22A with external Schottky (TJ ≤125°C, PVIN ≤5.5V)
- 18A (TJ ≤125°C, PVIN ≤5.5V)
- 14A (TJ ≤125°C, PVIN ≤6.2V)
- 12A (TJ ≤150°C, PVIN ≤6.2V)
- Maximum output current (Dual Phase)
- 38A (27% worst case current sharing)
- 1MHz or 500kHz switching frequency
- 3V to 6.2V supply voltage range
- ±1% reference voltage (line, load, temperature, and rad)
- Redundancy/junction isolation: exceptional SET performance
- Excellent transient response
- High efficiency >90%
- Two ISL70002SEH synchronization, inverted-phase
- Comparator input for enable and power-good
- Input undervoltage, output undervoltage, and adjustable output overcurrent protection
- QML qualified per MIL-PRF-38535
- Full military temperature range operation (-55 °C to +125 °C)
- Radiation environment
- HDR (50-300rad(Si)/s): 100krad(Si)
- LDR (0.01rad(Si)/s): 50krad(Si)
- SEE hardness
- SEL and SEB LETTH 86.4MeV/mg/cm2
- SEFI LETTH 43MeV/mg/cm2
- SET LETTH 86.4MeV/mg/cm2
应用
应用
- FPGA, CPLD, DSP, CPU core and I/O voltages
- Low-voltage, high-density distributed power systems
文档
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日期 | |
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| PDF 1.05 MB | 数据手册 | |
| PDF 467 KB | 手册 | |
| PDF 4.85 MB | 手册 | |
| PDF 414 KB | 应用文档 | |
| PDF 799 KB | 白皮书 | |
| PDF 2.81 MB | 报告 | |
| PDF 519 KB | 报告 | |
| PDF 360 KB | Price Increase Notice | |
| 其他 | ||
| PDF 296 KB | 技术摘要 | |
| PDF 1.91 MB | 手册 - 开发工具 | |
| PDF 243 KB | 应用文档 | |
| PDF 1.87 MB | 手册 - 开发工具 | |
| PDF 533 KB | 白皮书 | |
| PDF 1.42 MB | 手册 - 开发工具 | |
| PDF 459 KB | 报告 | |
| PDF 410 KB | 技术摘要 | |
| PDF 1.32 MB | 手册 - 开发工具 | |
| PDF 338 KB | 应用文档 | |
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设计和开发
软件与工具
软件与工具
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Software type
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公司
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| iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
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Simulator | 瑞萨电子 |
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开发板与套件
开发板与套件
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模型
ECAD 模块
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| CQFP | Tray | 1 | |||
| CQFP | Tray | 1 | |||
| CQFP | Tray | 25 | 5962R1220201VXC | ||
| CQFP | Tray | 25 | 5962R1220201VYC | ||
| DIE | 10 | 5962R1220201VYC | |||
| DIE | 5 |
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