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

类型
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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
19 items

设计和开发

软件与工具

软件与工具

Software title
Software type
公司
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.
Simulator 瑞萨电子
1 item

软件下载

类型
日期
EXE 138.65 MB 软件和工具 - 软件
ZIP 328 KB PCB设计文档
ZIP 338 KB PCB设计文档
ZIP 1.09 MB PCB设计文档
PDF 98 KB PCB设计文档
XLS 38 KB PCB设计文档
6 items

开发板与套件

开发板与套件

模型

模型

类型 日期
SXSCH 322 KB 模型 - iSim
SXSCH 308 KB 模型 - iSim
ZIP 385 KB 模型 - SPICE
3 items