GENERAL DESCRIPTION

The SP6134 is a 600kHz constant frequency, voltage mode, synchronous PWM step down controller optimized for high efficiency.

The SP6134 is adequately suited for split plane applications utilizing a low power 5V rail to power the controller circuitry, minimizing power dissipation. Its wide input voltage range of 3V to 15V allows for conversions from the standard 3.3V, 5V, 9.6V and 12V power rails to an output voltage adjustable down to 0.8V. Developed around a wide bandwidth internal amplifier, the SP6134 can accommodate type II and type III compensation schemes.

FEATURES

• 3V to 15V Step Down Achieved Using Dual Input

• On-Board 1.5Ω sink (2Ω source) NFET Drivers

• Up to 15A Output Capability

• UVLO Detects Both VCC and VIN

• Short-Circuit Protection with AutoRestart

• Supports Type II or III Compensation

• Programmable Soft Start

• Fast Transient Response

• High Efficiency: Greater than 94%

• Non-synchronous Start-Up

• Small 10-Pin MSOP Package

• U.S. Patent #6,922,041

APPLICATIONS

• 12V DPA

• Communications Systems

• Graphics Cards