跳转到主要内容

概览

描述

The ISL73002SEH 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 ISL73002SEH 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 ISL73002SEH uses peak current-mode control with integrated error amp compensation and pin-selectable slope compensation. The 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 ISL73002SEH 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 ISL73002SEH 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
    • 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

产品对比

应用

  • FPGA, CPLD, DSP, CPU core, and I/O voltages
  • Low-voltage, high-density distributed power systems

文档

设计和开发

软件与工具

软件与工具

Software title
Software type
公司
iSim:PE 离线模拟工具
iSim Personal Edition(iSim:PE )可加快设计周期并降低项目早期风险,确定可用于当前和下一代设计的部件。
Simulator 瑞萨电子
1 item

软件下载

类型 文档标题 日期
软件和工具 - 软件 登录后下载 ZIP 145.10 MB
PCB 设计文件 ZIP 4.15 MB
PCB 设计文件 ZIP 328 KB
PCB 设计文件 ZIP 338 KB
PCB 设计文件 ZIP 1.09 MB
PCB 设计文件 PDF 98 KB
PCB 设计文件 XLS 38 KB
7 items

开发板与套件

模型

ECAD 模块

点击产品选项表中的 CAD 模型链接,查找 SamacSys 中的原理图符号、PCB 焊盘布局和 3D CAD 模型。如果符号和模型不可用,可直接在 SamacSys 请求该符号或模型。

Diagram of ECAD Models

模型

类型 文档标题 日期
模型 - iSim 登录后下载 SXSCH 322 KB
模型 - iSim 登录后下载 SXSCH 308 KB
模型 - SPICE ZIP 385 KB
3 items

产品选项

当前筛选条件