概要

説明

The ISL70001ASEH 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 capacity is 6A for TJ <+145 °C. The ISL70001ASEH utilizes peak current-mode control for excellent output load transient response and features integrated compensation and switches at a fixed frequency of 1MHz to reduce component size and count. In an application where two POLs are needed, two ISL70001ASEH devices can be synchronized 180° out-of-phase to reduce the overall input RMS ripple current. The internal synchronous power switches are optimized for high efficiency and good thermal performance. The ISL70001ASEH incorporates fault protection for the regulator. The protection circuits include input undervoltage, output undervoltage and output overcurrent. High integration and class-leading radiation tolerance make the ISL70001ASEH an ideal choice to power many of today’s 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.

特長

  • ±1% reference voltage over line, load, temperature, and radiation
  • Current mode control for excellent dynamic response
  • Full mil-temp range operation (TA = -55 °C to +125 °C)
  • 50% lower shutdown supply current than the ISL70001SEH
  • Available in a thermally enhanced heatsink package - R48.B
  • Highly efficient: 94% peak efficiency
  • Operates from 3V to 5.5V supply
  • Adjustable output voltage
  • Two external resistors set VOUT from 0.8V to ~85% of VIN
  • Bidirectional SYNC pin allows two devices to be synchronized 180° out-of-phase
  • Power-good output voltage monitor
  • Adjustable analog soft-start
  • Input undervoltage, output undervoltage and output overcurrent protection
  • Electrically screened to DLA SMD 5962-09225
  • QML qualified per MIL-PRF-38535 requirements
  • Radiation hardness
  • Total dose [50-300rad(Si)/s]: 100krad(Si)
  • Total dose [<10mrad(Si)/s]: 100krad(Si)* * Product capability established by initial characterization. The EH version is acceptance tested on a wafer-by-wafer basis to 50krad(Si) at low dose rate.
  • SEE hardness
  • SEL and SEB LETeff: 86.4MeV/mg/cm2 min
  • SEFI X-section (LETeff = 86.4MeV/mg/cm2) 1.4 x 10-6 cm2 max
  • SET LETeff (< 1 pulse perturbation) 86.4MeV/mg/cm2 min

アプリケーション

アプリケーション

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

ドキュメント

Document title Document type
分類
日付 日付
PDF 1.59 MB データシート
PDF 414 KB アプリケーションノート
PDF 249 KB アプリケーションノート
PDF 338 KB アプリケーションノート
PDF 467 KB カタログ
PDF 4.85 MB カタログ
PDF 1.32 MB マニュアル-開発ツール
PDF 498 KB マニュアル-開発ツール
その他資料
PDF 360 KB Price Increase Notice
PDF 150 KB Product Advisory
PDF 448 KB レポート
PDF 2.92 MB レポート
PDF 437 KB レポート
PDF 410 KB 技術概要
PDF 799 KB ホワイトペーパー
PDF 522 KB ホワイトペーパー
PDF 533 KB ホワイトペーパー
18 items

設計・開発

ソフトウェア/ツール

ソフトウェアダウンロード

Software title Software type 分類 日付 日付
ZIP 328 KB PCB設計ファイル
PDF 98 KB PCB設計ファイル
XLS 38 KB PCB設計ファイル
EXE 138.65 MB ソフトウェア/ツール-ソフトウェア
4 items

ボード&キット

ボード&キット

モデル

モデル

タイトル 分類 分類 日付 日付
ZIP 532 KB モデル-SPICE
SXSCH 414 KB モデル-iSim
2 items