GENERAL DEscriptION

The SGM6332 is a current-mode buck converter with an internal power MOSFET switch. This device has a fixed switching frequency of 1.4MHz. It can efficiently provide up to 3A output load current over a wide input supply range from 4.5V to 18V with excellent load and line regulation responses.

In addition, the SGM6332 is an efficient, 91% peak efficiency when the device is in operation. The shutdown supply current consumed is less than 18μA. 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 a Green SOIC-8 (Exposed Pad) package and also minimizes the external components of the device to complete a 3A buck DC/DC converter solution.

FEATURES

• 4.5V to 18V Input Voltage Range

• 0.8V to 14V Adjustable Output Voltage Range

• 3A Output Current

• High Efficiency: Up to 91%

• Shutdown Supply Current: 18μA (MAX)

• 100mΩ Internal Power MOSFET Switch

• 1.4MHz Fixed Switching Frequency

• Cycle-by-Cycle Current Limit Protection

• Thermal Shutdown Protection

• Under-Voltage Lockout

• Support Low ESR Ceramic Capacitors

• -40℃ to +85℃ Operating Temperature Range

• Available in a Green SOIC-8 (Exposed Pad) Package

APPLICATIONS

Battery Chargers

Flat Panel TVs

Set-Top Boxes

Cigarette Lighter Powered Devices

Pre-Regulators