ISL6528
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Dual Regulator
- Standard Buck PWM and Linear Power Controller
FN9038 Rev 4.00 Mar 9, 2006
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 voltage 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...
