The ISL85003 and ISL85003A are synchronous buck regulators with integrated high-side and low-side FETs. The regulator can operate from an input voltage range of 4. 5V to 18V while delivering a very efficient continuous 3A current. This is all delivered in a very compact 3mmx4mm DFN package. The ISL85003 is designed on Intersil’s proprietary fab process that is designed to deliver very low rDS(ON) FETs with an optimized current mode controller wrapped around it. The high-side NFET is designed to have an rDS(ON) of 65mΩ while the low-side NFET is designed to have an rDS(ON) of 45mΩ. With these two FETs, the device delivers very high efficiency power to the load. The ISL85003 can automatically switch between DCM and CCM for light-load efficiency in DCM. The switching frequency in CCM is internally set to 500kHz. The device provides a maximum static regulation tolerance of ±1% over wide line, load and temperature ranges. The output is user adjustable, with external resistors, down to 0. 8V. Pulling EN above 0. 6V enables the controller. The regulator supports prebiased output. Fault protection is provided by internal current limiting during positive or negative overcurrent conditions, output and input under and overvoltage detection and an over-temperature monitoring circuit.

特長

  • Input voltage range 4.5V to 18V
  • Output voltage adjustable from 0.8V, ±1%
  • Efficiency up to 95%
  • Integrated boot diode with undervoltage detection
  • Current mode control
  • DCM/CCM
    • Internal or external compensation options
    • 500kHz switching frequency option
    • External synchronization up to 2MHz on ISL85003
  • Adjustable soft-start time on the ISL85003A
  • Open-drain PG window comparator
    • Built-in protection
    • Positive and negative overcurrent protection
    • Overvoltage and thermal protection
    • Input overvoltage protection
  • Small 12 Ld 3mmx4mm Dual Flat No-Lead (DFN) package

アプリケーション

  • Network and communication equipment
  • Industrial process control
  • Multi function printers
  • Point of load regulators
  • Standard 12V rail supplies
  • Embedded computing

製品選択

製品名 Part Status Pkg. Type Carrier Type MOQ 購入/サンプル
Active DFN Tube 75
Availability
Active DFN Reel 6000
Availability
Active DFN Reel 250
Availability
Active DFN Reel 1000
Availability

ドキュメント&ダウンロード

タイトル language 分類 形式 サイズ 日付
データシート
ISL85003, ISL85003A データシート English データシート PDF 1.50 MB
アプリケーションノート、ホワイトペーパー
Five Easy Steps to Create a Multi-Load Power Solution ホワイトペーパー PDF 846 KB
Abwärtsregler vor Überstromschäden schützen ホワイトペーパー PDF 341 KB
How to Protect Buck Regulators from Overcurrent Damage ホワイトペーパー PDF 378 KB
AN9208: High Frequency Power Converters アプリケーションノート PDF 592 KB
AN1681: Grounding Techniques アプリケーションノート PDF 509 KB
AN1684: Nonideality of Ground アプリケーションノート PDF 397 KB
AN9210: A New Pspice Subcircuit For The Power MOSFET Featuring Global Temperature Options アプリケーションノート PDF 650 KB
AN9209: A Spice-2 Subcircuit Representation For Power MOSFETs Using Empirical Methods アプリケーションノート PDF 387 KB
AN7244: Understanding Power MOSFETs アプリケーションノート PDF 349 KB
その他資料
ISL85003 iSim:PE Model 回路図 SXSCH 128 KB

ソフトウェア/ツールページ

タイトル 分類 Description Company
iSim オンライン設計/シミュレーションツール Simulator iSim Personal Edition(iSim:PE)は、プロジェクトの早い段階で設計サイクルを加速しリスクを低減し、現在および次世代の設計で使用できる部品を特定します。 Renesas

ボード&キット

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