ISL6528 Dual Regulator-Standard Buck PWM and Linear Power Controller

Posted on Feb 6, 2014

The ISL6528 provides the power control and protection for two output voltages in high-performance graphics cards and other embedded processor applications. The dual-output controller drives an N-Channel MOSFET in a standard buck topology and a NPN pass transistor in a linear configuration. The ISL6528 provides both a regulated high current, low vo

ISL6528 Dual Regulator-Standard Buck PWM and Linear Power Controller
Click here to download the full size of the above Circuit.

ltage supply and an independent, lower current supply integrated in an 8-lead SOIC package. The controller is ideal for graphics card applications where both graphics processing unit (GPU) and memory supplies are required. The standard buck converter is a simple, single feedback loop, voltage-mode control with fast transient response. Both the switching regulator and linear regulator provide a maximum static regulation tolerance of ±2% over line, load, and temperature ranges. Each output is user-adjustable by means of external resistors. An integrated soft-start feature brings both supplies into regulation in a controlled manner. Each output is monitored via the FB pins for undervoltage events. If either output drops below 52. 5% of the internal reference voltage, both regulators are shutdown.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Phase Control Circuit
    Microfarad Counter
    Low-Consumption Monostable Relay
    DC motor 12V speed controller circuit with explanation
    Reverse engineering the Elco heating protocol
    100w quad car amplifier
    Rolling Shutter Motor Control
    ULINKpro Interface Schematic
    lf352 Programming the AVR microcontroller with GCC libc 1.0.4
    1880MHz internal bias circuit diagram of the amplifier application collector RF2324
    Common intermediate frequency amplifier circuit having a circuit and on the radio