The ISL97519A is a high frequency, high efficiency step-up voltage regulator operated at constant frequency PWM mode. With an internal 2. 0A, 200mΩ MOSFET, it can deliver up to 1A output current at over 90% efficiency. Two selectable frequencies, 600kHz and 1. 2MHz, allow trade offs between smaller components and faster transient response. An external compensation pin gives the user greater flexibility in setting frequency compensation allowing the use of low ESR Ceramic output capacitors. When shut down, it draws <1µA of current and can operate down to 2. 3V input supply. These features, along with 1. 2MHz switching frequency, make it an ideal device for portable equipment and TFT-LCD displays. The ISL97519A is available in an 8 Ld MSOP package with a maximum height of 1. 1mm. The device is specified for operation over the full -40°C to +85°C temperature range.


  • >90% Efficiency
  • 2.0A, 200mΩ Power MOSFET
  • 2.3V to 5.5V Input
  • 1.1*VIN up to 25V Output
  • 600kHz/1.2MHz Switching Frequency Selection
  • Adjustable Soft-Start
  • Internal Thermal Protection
  • 1.1mm Max Height 8 Ld MSOP Package
  • Pb-Free (RoHS compliant)
  • Halogen Free


  • TFT-LCD displays
  • DSL modems
  • PCMCIA cards
  • Digital cameras
  • GSM/CDMA phones
  • Portable equipment
  • Handheld devices


Title language Type Format File Size Date
star ISL97519A Datasheet Datasheet PDF 728 KB
AN9208: High Frequency Power Converters Application Note PDF 592 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN9210: A New Pspice Subcircuit For The Power MOSFET Featuring Global Temperature Options Application Note PDF 650 KB
AN9209: A Spice-2 Subcircuit Representation For Power MOSFETs Using Empirical Methods Application Note PDF 387 KB
AN7244: Understanding Power MOSFETs Application Note PDF 349 KB
PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II Product Change Notice PDF 398 KB
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB


memoryBoards & Kits

Part Number Title Type Company
ISL97519AIUZEVALZ 600kHz/1.2MHz PWM Step-Up Regulator Evaluation Board Evaluation Renesas
ISL97519IUZEVALZ 600kHz/1.2MHz PWM Step-Up Regulator Evaluation Board Evaluation Renesas