SG Micro Corp

SGM6332 3A, 18V, 1.4MHz Step-Down Converter

GENERAL DESCRIPTION

The SGM6332 is a current-mode step-down regulator with an internal power MOSFET. This device achieves 3A continuous output current over a wide input supply range from 4.5V to 18V with excellent load and line regulations. The switching frequency of SGM6332 is 1.4MHz and current mode operation provides fast transient response and eases loop stabilization.

The SGM6332 is highly efficient with peak efficiency at 91% when in operation. In shutdown mode the regulator draws less than 18μA of supply current. Protection features include cycle-by-cycle current limit and thermal shutdown. The device also includes an internal soft-start and an external adjustable soft-start function to limit the inrush current and prevent the overshoot of output voltage.

The SGM6332 is available in Green SOIC-8 (Exposed Pad) package and requires a minimum number of readily available external components to complete a 3A step-down DC/DC converter solution.


PIN CONFIGURATIONS


FEATURES

• 3A Output Current
• High Efficiency: Up to 91%
• 4.5V to 18V Input Voltage Range
• < 18μA Shutdown Supply Current
• 100mΩ Internal Power MOSFET Switch
• Fixed 1.4MHz Switching Frequency
• Output Adjustable from 0.8V to 14V
• Cycle-by-Cycle Current Limit Protection
• Thermal Shutdown Protection
• Under-Voltage Lockout
• Stable with Low ESR Ceramic Capacitors
• -40
to +85 Operating Temperature Range
• Available in Green SOIC-8 (Expose
d Pad) Package

APPLICATIONS

Distributed Power Systems
Battery Chargers
Flat Panel TVs
Set-Top Boxes
Pre-Regulator for Linear Regulators
Cigarette Lighter Powered Devices
DVD/PVR Devices


ORDERING INFORMATION

Part Number Status Package Pins Pb-Free Temp Range
SGM6332YPS8G/TR Production SOIC-8 (Exposed Pad) 8 Y -40℃ to +85℃ Samples

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