The ISL80030, ISL80030A, ISL80031, and ISL80031A are highly efficient, monolithic, synchronous step-down DC/DC converters that can deliver up to 3A of continuous output current from a 2. 7V to 5. 5V input supply. They use peak current mode control architecture to allow very low duty cycle operation. These devices operate at either a 1MHz or 2MHz switching frequency, thereby providing superior transient response and allowing for the use of small inductors. They also have excellent stability. The ISL80030, ISL80030A, ISL80031, and ISL80031A integrate very low rDS(ON) MOSFETs to maximize efficiency. In addition, because the high-side MOSFET is a PMOS, the need for a Boot capacitor is eliminated, thereby reducing external component count. The devices can operate at 100% duty cycle. The ISL80030 and ISL80030A are configured for PWM pulse width modulation operation and provide a fast transient response, which helps reduce the output noise and RF interference. The ISL80031 and ISL80031A are configured for PFM discontinuous conduction operation and provide high efficiency by reducing switching losses at light loads. These devices are offered in a space saving 8 Ld 2mmx2mm DFN Pb-free package with exposed pad for improved thermal performance. The complete converter occupies less than 64mm2 area.

特性

  • VIN range 2.7V to 5.5V
  • Up to 3A of output current
  • Switching frequency of 1MHz or 2MHz
  • 35μA quiescent current (ISL80031 and ISL80031A)
  • Overcurrent and short-circuit protection
  • Over-temperature/thermal protection
  • Negative current protection
  • Power-good and enable
  • 100% duty cycle
  • Internal soft-start and soft-stop
  • VIN undervoltage lockout and VOUT overvoltage protection
  • Up to 95% peak efficiency

产品选择

器件号 Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active DFN Reel 1000
Availability
Active DFN Reel 250
Availability

文档和下载

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
ISL80030, ISL80030A, ISL80031, ISL80031A Datasheet 数据手册 PDF 1.36 MB
使用指南与说明
ISL8003xDEMO1Z User Guide 手册 PDF 574 KB
应用指南 &白皮书
Five Easy Steps to Create a Multi-Load Power Solution 白皮书 PDF 846 KB
AN9208: High Frequency Power Converters 应用文档 PDF 592 KB
AN1681: Grounding Techniques 应用文档 PDF 509 KB
AN1684: Nonideality of Ground 应用文档 PDF 397 KB
AN9210: A New Pspice Subcircuit For The Power MOSFET Featuring Global Temperature Options 应用文档 PDF 650 KB
AN9209: A Spice-2 Subcircuit Representation For Power MOSFETs Using Empirical Methods 应用文档 PDF 387 KB
AN7244: Understanding Power MOSFETs 应用文档 PDF 349 KB
下载
ISL80031DEMO1Z Design Files Design File ZIP 438 KB
其他
ISL80031 iSim:PE Model 原理图 SXSCH 217 KB
PA17050 - Datasheet specification change for Listed Intersil ISL80030*, ISL80030A*, ISL80031*, ISL80031A* products Product Advisory PDF 85 KB

软件和工具页面

文档标题 类型 Description Company
iSim:PE Offline Simulation Tool Simulator iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs. Renesas

开发板与套件

器件号 文档标题 类型 Company
ISL80030ADEMO1Z 3A Synchronous Buck Converter Demonstration Board 演示 Renesas
ISL80030DEMO1Z 3A Synchronous Buck Converter Demonstration Board 演示 Renesas
ISL80031ADEMO1Z 3A Synchronous Buck Converter Demonstration Board 演示 Renesas
ISL80031DEMO1Z 3A Synchronous Buck Converter Demonstration Board 演示 Renesas