GENERAL DEscriptION

The SGM61032 is a high efficiency and miniature size synchronous Buck converter for low input voltage applications. It is a perfect solution for compact designs. The 2.5V to 5.5V input voltage range is suitable for almost all available battery-powered applications. It operates in PWM mode at 1.5MHz (TYP) in the medium to heavy load range and automatically enters or exits the power-save mode (PSM) at light loads to maintain its high efficiency. During shutdown, the current is 0.02μA (TYP).

This device is based on an adaptive off-time architecture, but still allows a wide range of output capacitors from 10μF to 150μF and even more. This flexibility makes the device a good choice for system power rails supply. It also supports  duty cycle operation and enters path-through mode (PTM) when certain conditions are met. At this mode, the current is reduced to 32μA. The adaptive off-time architecture provides excellent output voltage accuracy and superb load transient response. only external feedforward compensation capacitor is needed to obtain faster response.

The SGM61032 is available in a Green SOT-563-6 package.

FEATURES

• 2.5V to 5.5V Input Voltage Range

• Adjustable Output Voltage from 0.6V to VIN 

• Adaptive Off-Time Architecture

• Up to 95% Efficiency

• Low RDSON Internal Switches: 55mΩ/25mΩ

• 42μA Current

• 32μA Current in Path-Through Mode

• Power-Save Mode at Light Load

• Low Dropout with  Duty Cycle

• PG Output (Except for the SGM61032A)

• Internal Soft-Start with Pre-biased Startup

• Output Discharge at Shutdown

• Hiccup Mode OCP/Short-Circuit Protection

• Thermal Shutdown Protection

• Available in a Green SOT-563-6 Package

APPLICATIONS

Industrial and Commercial Applications

General Purpose Point-of-Load Power Supplies

Potable Battery-Powered Applications

Wireless Routers, Solid State Drives

Set-Top Boxes, Multi-Function Printers