Overview

Description

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.

Features

  • 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

Applications

Applications

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

Documentation

Type
Date
PDF 1.05 MB Datasheet
PDF 467 KB Brochure
PDF 4.85 MB Brochure
PDF 414 KB Application Note
PDF 799 KB White Paper
PDF 2.81 MB Report
PDF 519 KB Report
PDF 360 KB Price Increase Notice
Other
PDF 296 KB Technical Brief
PDF 1.91 MB Manual - Development Tools
PDF 243 KB Application Note
PDF 1.87 MB Manual - Development Tools
PDF 533 KB White Paper
PDF 1.42 MB Manual - Development Tools
PDF 459 KB Report
PDF 410 KB Technical Brief
PDF 1.32 MB Manual - Development Tools
PDF 338 KB Application Note
19 items

Design & Development

Software & Tools

Software & Tools

Software title
Software type
Company
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 Renesas
1 item

Software Downloads

Type
Date
EXE 138.65 MB Software & Tools - Software
ZIP 328 KB PCB Design Files
ZIP 338 KB PCB Design Files
ZIP 1.09 MB PCB Design Files
PDF 98 KB PCB Design Files
XLS 38 KB PCB Design Files
6 items

Boards & Kits

Boards & Kits

Models

Models

Type Date
SXSCH 322 KB Model - iSim
SXSCH 308 KB Model - iSim
ZIP 385 KB Model - SPICE
3 items