GENERAL DEscriptION

The SGM6022 is a high-efficient Buck switching voltage regulator, supporting up to 600mA output current and fixed output voltage. This device is capable to provide an input voltage supply range of 2.5V to 5.5V. The 6MHz fixed frequency operation allows the use of a 470nH output inductor and a 4.7μF output capacitor.

The SGM6022 operates in power-save mode under moderate and light load conditions through pulse frequency modulation (PFM). The 22μA typical current and the power-save mode can further improve the system efficiency which can reach a maximum of 90%. The SGM6022 also has excellent load transient response capability. Its output could be programmed to four different voltages, as well as two different on/off delay times, making it ideal for designing primary supplies. The SGM6022 also includes the features of internal soft-start, input under-voltage lockout, thermal shutdown and overload protection.

The SGM6022 is available in a Green TDFN-2×2-6L package. It operates over an ambient temperature range of -40℃ to +125℃.

FEATURES

• 2.5V to 5.5V Input Voltage Range

• 600mA Output Current Capability

• 22μA Typical Current

• 6MHz Fixed Frequency Operation

• Excellent Efficiency and Load Transient Response

• Precision Preset Voltage Selectable from 4 Preset Voltages in 1.02V ~ 3V Range

• Programmable Output Voltage

• Low Ripple Light-Load PFM Mode

• Internal Soft-Start

• Input Under-Voltage Lockout (UVLO)

• Overload Protection

• Thermal Shutdown

• Output Discharge

• Available in a Green TDFN-2×2-6L Package

• -40℃ to +125℃ Operating Temperature Range

APPLICATIONS

Digital Cameras

4G, WiFi, WiMAsX, and WiBro Data Cards

Tablet Computers