SGM6014中文资料1.4MHz, 2A Synchronous Step-Down Converter数据手册SGMICRO规格书

描述 Description

The SGM6014 is a high-efficient monolithic synchronous buck regulator 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 enter pulse frequency modulation (PFM) (low IQ) mode with typically 55μA quiescent current for highest light load efficiency to maximize battery life.

The SGM6014 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.

SGM6014 is available in both adjustable and 3.3V fixed output voltage versions; in the Green TDFN-3×3-10L package. It is rated over the -40℃ to +85℃ temperature range.

特性 Features

• 2.5V to 5.5V Input Voltage Range
• Up to 95% High Efficiency
• 1.4MHz Constant Frequency Operation
• 2A Output Current
• 3.3V Fixed and Adjustable Output Voltages
• 100% Duty Cycle for Lowest Dropout
• Shutdown Current: 2μA (MAX)
• Low Quiescent Current: 55μA in PFM Mode
• 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