The ISL8117 is a synchronous buck controller used to generate POL voltage rails and bias voltage rails for a wide variety of applications in industrial and general purpose segments. Its wide input and output voltage ranges make it suitable for telecommunication and after-market automotive applications. The ISL8117 uses the valley current modulation technique to bring hassle-free power supply design with a minimal number of components and complete protection from unwanted events. The ISL8117 offers programmable soft-start and enable functions along with a power-good indicator for ease of supply rail sequencing and other housekeeping requirements. In ideal situations, a complete power supply circuit can be designed with 10 external components and provide OV/OC/OT protections in a space conscious 16 Ld 4mmx4mm QFN or easy to assemble 6. 4mmx5mm 16 Ld HTSSOP package. Both packages use an EPAD to improve thermal dissipation and noise immunity. Low pin count, fewer external components, and default internal values makes the ISL8117 an ideal solution for quick to market simple power supply designs. The ISL8117 uses internal loop compensation and single resistor settings for other functions such as operating frequency and overcurrent protection. Its current mode control with VIN feedforward enables it to cover various applications even with fixed internal compensations. The unique DEM/Skipping mode at light-load dramatically lowers standby power consumption with consistent output ripple over different load levels.

特長

  • Wide input voltage range: 4.5V to 60V
  • Wide output voltage range: 0.6V to 54V
  • Light-load efficiency enhancement
  • Low ripple Diode Emulation mode with pulse skipping
  • Programmable soft-start
  • Supports prebiased output with SR soft-start
  • Programmable frequency: 100kHz to 2MHz
  • External sync
  • PGOOD indicator
  • Forced PWM
  • Adaptive shoot-through protection
  • No external current sense resistor
  • Use lower MOSFET rDS(ON)
  • Complete protection
  • Overcurrent, overvoltage, over-temperature, undervoltage
  • Pb-free (RoHS compliant)

tune製品選択

製品名 Part Status Pkg. Type Carrier Type MOQ 購入/サンプル
Active QFN Tube 75
Availability
Active QFN Reel 6000
Availability
Active QFN Reel 250
Availability
Active TSSOP-EP Tube 960
Availability
Active TSSOP-EP Reel 2500
Availability
Active TSSOP-EP Reel 250
Availability

descriptionドキュメント

タイトル language 分類 形式 サイズ 日付
データシート
star ISL8117 Datasheet データシート PDF 836 KB
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
How to Select a PWM Controller for Narrow On-Time Buck Conversion 简体中文 ホワイトペーパー PDF 322 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
その他資料
ISL8117 48Vin 12V 20A iSim:PE Model 回路図 SXSCH 190 KB

file_downloadダウンロード

タイトル language 分類 形式 サイズ 日付
ソフトウェア
ISL8117 Design Tool v1.01 ソフトウェア/ツール-その他 XLSX 311 KB

select_all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

memoryボード&キット

製品名 タイトル 分類 Company
ISL8117DEMO1Z Synchronous Step-down PWM Controller Demonstration Board Demonstration Renesas
ISL8117DEMO2Z Synchronous Step-down PWM Controller Demonstration Board Demonstration Renesas
ISL8117DEMO3Z Synchronous Step-down PWM Controller Demonstration Board Demonstration Renesas
ISL8117DEMO4Z Synchronous Step-down PWM Controller Demonstration Board Demonstration Renesas
ISL8117EVAL1Z Synchronous Step-down PWM Controller Evaluation Board Evaluation Renesas
ISL8117EVAL2Z Synchronous Step-down PWM Controller Evaluation Board Evaluation Renesas