SGM6011中文资料1.5MHz, 2A Synchronous Step-Down Converter数据手册SGMICRO规格书

描述 Description

The SGM6011 is a high-efficient monolithic synchronous buck converter with a wide input voltage range of 2.5V to 5.5V. The device is available in a 3.3V fixed output and an adjustable voltage versions. This device is targeted at the portable equipment with high current requirements from single-cell Li-Ion batteries. It can operate in the forced continuous pulse width modulation (PWM) mode. The SGM6011 is highly efficient with peak efficiency at 95% when in operation. The device could operate at 100% duty cycle to achieve the lowest dropout and longer battery life.

This device is capable to provide up to 2A output load current and operates at a 1.4MHz constant frequency to achieve the smallest size of external components. The internal slope compensation allows the use of smaller-value inductors to give improved solution size to this device.

The SGM6011 is available in Green TDFN-3×3-10L package and is rated over the -40℃ to +85℃ temperature range.

特性 Features

• 2.5V to 5.5V Input Voltage Range
• Forced Continuous PWM Mode Operation
• Up to 95% High Efficiency
• 1.4MHz Constant Frequency Operation
• 2A Output Current
• 100% Duty Cycle for Lowest Dropout
• Shutdown Current: 2μA (MAX)
• 135mΩ Low RDS(ON) Internal Switches
• Support Ceramic Capacitors
• Current Mode Control for Excellent Line and Load Transient Responses
• Internal Soft-Start Protection
• Short Circuit and Thermal Protection
• -40℃ to +85℃ Operating Temperature Range
• Available in a Green TDFN-3×3-10L Package

应用 Application

• PDA, Pocket PC and Smart Phones
• USB Powered Modems
• CPUs and DSPs
• PC Cards and Notebooks
• Mobile Phones
• Digital Cameras
• DSP Core Supplies
• Portable Equipment