The ISL8205M power module is a single channel synchronous step-down complete power supply, capable of delivering up to 5A of continuous current. Operating from a single 2. 6V to 5. 5V input power rail and integrating controller, power inductor and MOSFETs, the ISL8205M only requires a few external components to operate and is optimized for space constrained and portable battery operated applications. Based on current mode PWM control scheme, the ISL8205M provides a fast transient response and excellent loop stability as well as a very low duty cycle with an adjustable output voltage as low as 0. 6V and better than 1. 6% accuracy over line and load conditions. Operation frequency is selectable through an external resistor, with a 1. 8MHz default setting, or may be synchronized with an external clock signal up to 3. 5MHz. The ISL8205M also implements a selectable PFM mode to improve light-load efficiency and a 100% duty cycle LDO mode to extend battery life. A programmable soft-start reduces the inrush current required from the input supply while an automatic output discharge ensures a soft stop. Dedicated enable pin and power-good flag allow for easy system power rails sequencing. An array of protection features, including input Undervoltage Lockout (UVLO), over-temperature, overcurrent/short-circuit with hiccup mode, overvoltage and negative overcurrent, guarantees safe operations under abnormal operating conditions. The ISL8205M is available in a compact RoHS compliant 22 Ld 4. 5x7. 5x1. 85mm QFN package.


  • 5A single channel complete power supply
  • Integrates controller, MOSFETs and inductor
  • Pin/function compatible with the 3A ISL8202M
  • 2.6V to 5.5V input voltage range
  • Adjustable output voltage range
  • As low as 0.6V with ±1.6% accuracy over line/load/temperature
  • Up to 95% efficiency
  • Default 1.8MHz current mode control operations
  • 680kHz to 3.5MHz resistor adjustable
  • External synchronization up to 3.5MHz
  • Selectable light-load efficiency mode
  • 100% duty cycle LDO mode
  • Programmable soft-start
  • Soft-stop output discharge
  • Dedicated enable pin and power-good flag
  • UVLO, over-temperature, overcurrent, overvoltage and negative overcurrent protections
  • Overcurrent/short-circuit hiccup mode
  • 4.5mmx7.5mmx1.85mm 22 Ld QFN package


製品名 Part Status Pkg. Type Carrier Type MOQ 購入/サンプル
Active Module Reel 3000
Active Module Reel 250


タイトル language 分類 形式 サイズ 日付
ISL8205M Datasheet データシート PDF 1.44 MB
ISL8205MEVAL1Z User Guide マニュアル PDF 713 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
Five Easy Steps to Create a Multi-Load Power Solution ホワイトペーパー PDF 846 KB
How Green is Your Cloud? ホワイトペーパー PDF 295 KB
Power Module Board Level Reliability Report その他資料 PDF 187 KB
ISL8205M iSim:PE Model 回路図 SXSCH 227 KB


タイトル language 分類 形式 サイズ 日付
ISL8205MEVAL1Z Design Files 設計ファイル ZIP 750 KB


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


製品名 タイトル 分類 Company
ISL8205MEVAL1Z 5A Single Channel High-Efficiency DC/DC Step-Down Power Module Evaluation Board 評価 Renesas