The ISL95873 is a Single-Phase Synchronous-Buck PWM controller featuring Renesas' proprietary R4™ Technology. The R4™ modulator has integrated compensation, fast transient performance, accurate switching frequency control, and excellent light-load efficiency. These technology advances, together with integrated MOSFET drivers and a Schottky bootstrap diode, allow for a high-performance regulator that is highly compact and needs few external components. Differential remote sensing of the output voltage is an additional feature. For maximum efficiency, the converter automatically enters diode-emulation mode (DEM) during light-load conditions, such as system standby. The ISL95873 accepts a wide 3. 3V to 25V input voltage range, making it ideal for systems that run on battery or AC-adapter power sources. It also is a low-cost solution for applications requiring tracking of an external reference voltage during soft-start. When the external reference level meets the internal reference voltage, the ISL95873 switches from the external reference to the internal reference. The external reference is only used during soft-start.

特性

  • External reference tracking
  • R4™ modulator technology
  • Internal compensation
  • Fast, optimal transient response
  • Input voltage range: 3.3V to 25V
  • Output voltage range: 0.5V to 3.3V
  • Precision voltage regulation
  • ±0.5% System accuracy over -10°C to +100°C
  • Output voltage remote sense
  • Fixed 300kHz PWM frequency in continuous conduction
  • Proprietary frequency control loop
  • Automatic diode emulation mode for highest efficiency
  • Power-good monitor for soft-start and fault detection

应用

  • Compact buck regulators requiring external tracking

产品选择

器件号 Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active uTQFN Reel 3000
Availability

文档

文档标题 language 类型 文档格式 文件大小 日期
数据手册与勘误表
ISL95873 Datasheet 数据手册 PDF 933 KB
应用指南 & 白皮书
AN1681: Grounding Techniques 应用文档 PDF 509 KB
AN1684: Nonideality of Ground 应用文档 PDF 397 KB
Five Easy Steps to Create a Multi-Load Power Solution 白皮书 PDF 846 KB
PCN / PDN
PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II 产品变更通告 PDF 398 KB