The ISL8002, ISL8002A, ISL80019 and ISL80019A are highly efficient, monolithic, synchronous step-down DC/DC converters that can deliver up to 2A 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. They operate at either 1MHz or 2MHz switching frequency, thereby providing superior transient response and allowing for the use of small inductors. They also have excellent stability and provide both internal and external compensation options. The ISL8002, ISL8002A, ISL80019 and ISL80019A integrate very low rDS(ON) MOSFETs in order to maximize efficiency. In addition, since the high-side MOSFET is a PMOS, the need for a Boot capacitor is eliminated, thereby reducing external component count. They can operate at 100% duty cycle (at 1MHz) with a dropout of 200mV at 2A output current. These devices can be configured for either PFM (discontinuous conduction) or PWM (continuous conduction) operation at light load. PFM provides high efficiency by reducing switching losses at light loads and PWM reduces noise susceptibility and RF interference. These devices are offered in a space saving 8 pin 2mmx2mm TDFN lead free package with exposed pad for improved thermal performance. The complete converter occupies less than 0. 10in2 area.

Features

  • VIN range 2.7V to 5.5V
  • VOUT range is 0.6V to VIN
  • IOUT maximum is 1.5A or 2A
  • Switching frequency is 1MHz or 2MHz
  • Internal or external compensation option
  • Selectable PFM or PWM operation option
  • Overcurrent and short circuit protection
  • Over-temperature/thermal protection
  • VIN Undervoltage Lockout and VOUT Overvoltage Protection
  • Up to 95% peak efficiency

Applications

  • General purpose point of load DC/DC
  • Set-top boxes and cable modems
  • FPGA power
  • DVD, HDD drives, LCD panels, TV

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active TDFN Reel 1000
Availability
Active TDFN Reel 250
Availability
Active TDFN Reel 1000
Availability
Active TDFN Reel 250
Availability

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL8002, ISL8002A, ISL80019, ISL80019A Datasheet 日本語 Datasheet PDF 1.87 MB
User Guides & Manuals
ISL8002-19EVAL1Z User Guide Manual PDF 612 KB
ISL8002xDEMO1Z and ISL80019xDEMO1Z User Guide Manual PDF 628 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 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
Downloads
ISL8002xEVAL1Z, ISL80019xEVAL1Z Design Files Design File ZIP 281 KB
Other
ISL8002 iSim:PE Model Schematic SXSCH 224 KB

Software & Tool Pages

Title Type 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

Boards & Kits

Part Number Title Type Company
ISL80019AEVAL1Z 1.5A/2A Low Quiescent Current High-Efficiency Sync Buck Regulator Evaluation Board Evaluation Renesas
ISL80019EVAL1Z 1.5A/2A Low Quiescent Current High-Efficiency Sync Buck Regulator Evaluation Board Evaluation Renesas
ISL8002AEVAL1Z 1.5A/2A Low Quiescent Current High-Efficiency Sync Buck Regulator Evaluation Board Evaluation Renesas
ISL8002DEMO1Z Compact Synchronous Buck Regulator Demonstration Board Demonstration Renesas
ISL8002EVAL1Z 1.5A/2A Low Quiescent Current High-Efficiency Sync Buck Regulator Evaluation Board Evaluation Renesas