Power & Power Management

Overview

The ISL8002B is a highly efficient, monolithic, synchronous step-down DC/DC converter that can deliver up to 2A of continuous output current from a 2. 7V to 5. 5V input supply. It uses peak current mode control architecture to allow very low duty cycle operation. ISL8002B operates at a 2MHz switching frequency, thereby providing superior transient response and allowing for the use of a small inductor. ISL8002B also has excellent stability. The ISL8002B integrates 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. The device 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 for fast transient response, which helps reduce the output noise and RF interference. The device is offered in a space saving 8 Ld 2mmx2mm TDFN Pb-free package with exposed pad for improved thermal performance. The complete converter occupies less than 64mm2 area.

ISL8002B Functional Diagram
ISL8002B Functional Diagram
  • VIN range 2.7V to 5.5V
  • IOUT maximum is 2A
  • External soft-start programmable
  • Output tracking and sequencing
  • Switching frequency is 2MHz
  • 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

Design & Development

Boards & Kits

ISL8002BDEMO1Z Buck Regulator Demonstration Board

ISL8002BDEMO1Z

Demonstration
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Compact Sync Buck Regulator Demo Board with 2.7V to 5.5V Vin Range and 1.8V 2A Output

The ISL8002BDEMO1Z demonstration kit is intended for point-of-load applications sourcing from 2.7V to 5.5V. The ISL8002BDEMO1Z demo board is used to demonstrate the...

Featured Documents:
ISL8002BDEMO1Z User Guide

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Product Options

    Processing table
    Part Number
    Pkg. Type
    Carrier Type
    MOQ
    Buy / Sample
    ISL8002BFRZ-T
    play_circleActive
    memory
    spa
    view_in_ar
    		TDFN Reel 1000
    ISL8002BIRZ-T
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    memory
    spa
    view_in_ar
    		TDFN Reel 2000
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